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污水总泵站的设计-毕业设计计算书

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'目录第一章污水管道系统的设计计算.........................................................................................................................11.1设计流量的确定.......................................................................................................................................11.1.1生活污水设计流量..............................................................................................................................11.1.2工业废水设计流量..............................................................................................................................21.1.3城市污水管道系统的设计总流量......................................................................................................31.1.4管段设计流量......................................................................................................................................41.2污水管道的水力计算...............................................................................................................................41.2.1水力计算公式......................................................................................................................................41.2.2水力计算设计参数:..........................................................................................................................5第二章雨水管道系统的设计计算.........................................................................................................................62.1气象资料及地质资料...............................................................................................................................62.1.1地质资料..............................................................................................................................................62.1.2气象资料..............................................................................................................................................62.2地面径流系数Ψ.......................................................................................................................................62.3单位面积径流量.......................................................................................................................................72.4雨水管道的水力计算...............................................................................................................................8第三章污水的处理程度.........................................................................................................................................93.1设计污水水量...........................................................................................................................................93.2设计污水水质.........................................................................................................................................103.3污水处理程度计算.................................................................................................................................103.3.1污水的SS处理程度计算.................................................................................................................113.3.2污水的BOD处理程度计算.............................................................................................................113.3.3污水的氨氮处理程度计算................................................................................................................153.3.4污水的磷酸盐处理程度计算............................................................................................................16第四章污水的一级处理.......................................................................................................................................174.1粗格栅设计计算.....................................................................................................................................174.2细格栅设计计算.....................................................................................................................................214.3沉砂池设计计算.....................................................................................................................................244.4配水井的设计计算.................................................................................................................................284.5初沉池设计计算.....................................................................................................................................30第五章污水厂的生化处理...................................................................................................................................355.1A2O生化池的设计计算.......................................................................................................................355.2二沉池的设计计算...............................................................................................................................47第六章污水的深度处理.......................................................................................................................................54~1~ 6.1机械混合池计算.....................................................................................................................................546.2V型滤池设计计算.................................................................................................................................576.3紫外线消毒渠的设计计算.....................................................................................................................736.4巴氏计量槽设计.....................................................................................................................................74第七章污泥处理...................................................................................................................................................787.1浓缩池的设计计算.................................................................................................................................787.2贮泥池的设计计算.................................................................................................................................817.3脱水车间的设计计算.............................................................................................................................83第八章污水厂的高程计算...................................................................................................................................858.1污水的高程计算.....................................................................................................................................858.1.1构筑物的水头损失............................................................................................................................858.1.2管渠的水力计算................................................................................................................................858.1.3污水处理厂的高程布置....................................................................................................................858.2污泥的高程计算.....................................................................................................................................87第九章污水总泵站的设计...................................................................................................................................899.1水泵流量及扬程的初步确定.................................................................................................................899.2初步选泵.................................................................................................................................................899.3吸、压水管路实际水头损失的计算及水泵扬程的核算.....................................................................909.4集水井.....................................................................................................................................................919.5泵房高度的确定.....................................................................................................................................91第十章经济分析...................................................................................................................................................92附表..............................................................................................................................................................................96~2~ 第一章污水管道系统的设计计算1.1设计流量的确定1.1.1生活污水设计流量1.居民生活污水设计流量居民生活污水主要来自居住区,它通常按下式计算:n·N·KzQ=124×3600式中:Q1—居民生活污水设计流量,L/s;n—居民生活污水量定额,L/(cap·d);N—设计人口数,cap;KZ—生活污水量总变化系数。设计中的城市总人口近期(2020年)为15万,远期规划(2030年)为20万;规划2020年镇区建设用地为500公顷;到2030年规划建设用地为900公顷。污水管网设计按远期人口计算,各街区的排水的平均计算结果如附表1生活污水量总变化系数KKKZdh生活污水量总变化系数表1-1污水平均日流量(L/s)5154070100200500≥1000总变化系数Kz2.32.01.81.71.61.51.41.3注:①当污水平均日流量为中间数值时,总变化系数用内插法求得;②当居住区有实际生活污水量变化资料时,可按实际数据采用。我国在多年观测资料的基础上,经过综合分析归纳,总结出了总变化系数与平均流量之间的关系式,即:2.7K=zO.11Q式中Q—污水平均日流量,L/s。当Q<5L/s时,Kz=2.3;当Q>1000L/s时,Kz=1.3。2.工业企业生活污水和淋浴污水设计流量~1~ 工业企业的生活污水和淋浴污水主要来自生产区的食堂、卫生间、浴室等。其设计流量的大小与工业企业的性质、污染程度、卫生要求有关。一般按下式进行计算:ABKABKCDCD1112221122Q=+33600T3600式中Q3—工业企业生活污水和淋浴污水设计流量,L/s;A1—一般车间最大班职工人数,cap;B1—一般车间职工生活污水定额,以25L/(cap·班)计;K1—一般车间生活污水量时变化系数,以3.0计;A2—热车间和污染严重车间最大班职工人数,cap;B2—热车间和污染严重车间职工生活污水量定额,以35L/(cap·班)计;K2—热车间和污染严重车间生活污水量时变化系数,以2.5计;C1—一般车间最大班使用淋浴的职工人数,cap;D1—一般车间的淋浴污水量定额,以40L/(cap·班)计;C2—热车间和污染严重车间最大班使用淋浴的职工人数,cap;D2—热车间和污染严重车间的淋浴污水量定额,以60L/(cap·班)计;T—每工作班工作时数,h。淋浴时间按60min计。工业生产污水和职工人数等情况原始资料已给出,具体如表1-2所示。工厂职工人数及工业污水量表1-2工厂最大班职工人数(cap)沐浴人数(cap)生产污水名称(m3/d)一般车间热车间一般车间热车间羽绒服厂6581202651201500丝绸厂120504050800化肥厂2208601508502500石油机械厂3604501804302000炼油厂300150015013505000电机厂10036070310130汽车修理厂501503013060计算结果如附表2所示1.1.2工业废水设计流量工业生产污水和职工人数等情况原始资料已给出,具体如表1-2所示。工业废水设计~2~ 流量按下式计算mMKZQ43600T式中Q4—工业废水设计流量,L/s;m—生产过程中每单位产品的废水量定额,L/单位产品;M—产品的平均日产量,单位产品/d;T—每日生产时数,h;KZ—总变化系数。计算结果如表1-3所示。工厂集中用水量表1-3工厂生活水量生产用水量工业废水时变日平均用水生产用水量总集中用水3名称(L/s)(m/d)化系数Kz量L/s(L/s)量(L/s)羽绒服厂6.881500.001.8017.3631.2538.13丝绸厂1.75800.001.809.2616.6718.42化肥厂19.972500.001.4028.9440.5160.48石油机械厂11.862000.001.4023.1532.4144.27炼油厂31.205000.001.4057.8781.02112.22机电厂7.69130.001.501.502.269.95汽车修理厂3.2560.001.400.690.974.22*注*其他集中用水量还有公园设计流量3.5L/s,火车站设计流量3.5L/s,医院污水设计流量0.97L/s。1.1.3城市污水管道系统的设计总流量城市污水管道系统的设计总流量一般采用直接求和的方法进行计算,即直接将上述各项污水设计流量计算结果相加,作为污水管道设计的依据,城市污水管道系统的设计总流量可用下式计算:QQQQQ(L/s)1234设计时也可按综合生活污水量进行计算,综合生活污水设计流量为:nNKZQ(L/s)1243600’式中Q1—综合生活污水设计流量,L/s;’n—综合生活污水定额,对给水排水系统完善的地区按综合生活用水定额90%计,一般地区按80%计;其余符号同前。此时,城市污水管道系统的设计总流量为:~3~ QQQQ(L/s)134本设计采用第一种方法。计算结果如附表1-31.1.4管段设计流量1.本段流量q1本段流量一般用下式计算:q=FqK1sz式中q1—设计管段的本段流量,L/s;F—设计管段服务的街坊面积,hm2;KZ—生活污水量总变化系数;q2s—生活污水比流量,L/(s·hm)。生活污水比流量可采用下式计算:nq=s243600式中n—生活污水定额或综合生活污水定额,L/(cap·d);ρ—人口密度,cap/hm2。2.转输流量q2转输流量是指从上游管段和旁侧管段流来的污水量。它对某一设计管段而言,是不发生变化的,但不同的设计管段,可能有不同的转输流量。3.集中流量q3集中流量是指从工业企业或其它大型公共设施流来的污水量。对某一设计管段而言,它也不发生变化。设计管段的设计流量是上述本段流量、转输流量和集中流量三者之和。计算结果见附表1-31.2污水管道的水力计算1.2.1水力计算公式流速12/31/2vRIn流量~4~ 12/31/2QWRIn2式中W—过水断面面积m;I—水力坡度;n—管道粗糙系数;R—水力半径。1.2.2水力计算设计参数:1.设计充满度t:最大设计充满度表1-4管径D或暗渠高H(mm)最大充满度h/D200~3000.55350~4500.65500~9000.70≥10000.752.设计流速v:根据设计手册,污水最小设计流速定为0.6m/s。通常金属管道的最大设计流速为10m/s,非金属管道最大设计流速为5m/s。3.最小管径四川地区街道最小管径为300mm。4.最小设计坡度管径200mm的最小设计坡度是0.004,管径300mm的最小设计坡度是0.003。5.污水管道最小埋深由于本设计中起端标高较大,本设计控制点的埋深为2.70m。综合上述设计参数,本设计污水干管水力计算表详见附表1-4~5~ 第二章雨水管道系统的设计计算2.1气象资料及地质资料2.1.1地质资料地质情况良好,为亚砂土、亚粘土、砂、石组成,其厚度为2.1~7.0m,地基承载能力1KGf/cm2以上,地震烈度小于6度,土壤最低温度3℃,土壤平均温度16℃。2.1.2气象资料风向:常年主导风向为北风和西北风,最大风速3.6m/s,平均风速1.7m/s;气压:平均气压为723mm汞柱高;气温:最高为40.3℃,最低为-4.3℃,年平均气渐为17.2℃;湿度:年平均湿度78%;降水:年平均降水量为935.80mm。2.2地面径流系数ψ地面覆盖种类情况见表2-1。地面覆盖种类情况表表2-1地面覆盖种类江东区江西区屋面45%43%混凝土道路,人行道25%26%碎石路面2%2%非铺砌路面2%1%公园及绿地26%28%根据《室外排水设计规范》GB500014-2006中3.2.2条规定,地面的径流系数如表2-2。~6~ 径流系数表2-2地面种类各种屋面、混凝土或沥青路面0.85~0.95大块石铺砌路面或沥青表面处理的碎石路面0.55~0.65级配碎石路面0.40~0.50干砌砖石或碎石路面0.35~0.40非铺砌土路面0.25~0.35公园或绿地0.10~0.20整个汇水面积上的平均径流系数值按各类地面面积用加权平均计算,即avΣFΨiiΨ=avF式中Fi—汇水面积上各类地面的面积(ha);Ψ—相应各类地面的径流系数;iF—全部回水面积。计算结果如表2-3地面综合径流系数表2-3地面种类屋面混凝土路碎石路面非铺砌路面公园及绿地加权平均值径流系数0.90.90.450.30.151江东区0.450.250.020.020.260.684江西区0.430.260.020.010.280.6752.3单位面积径流量设计暴雨强度:1246(1+0.7051gp)q=(L/s.ha)0.597(0.0102)t+4.73p式中P—重现期,取P=2a;t—降雨历时(min),t=t1+mt2;t1—地面集流时间,取t1=5min;m—折减系数,取m=1;Lt2—管内雨水流行时间(min),t2;60v~7~ L—设计管段长度(m);v—管内流速(m/s)。单位面积径流量:1246(1+0.7051gp)124(610.7051g2)12630.52q=Ψ0.684(L/ha)0.5970.01020.5970.597(t+4.73p0.0102)(t4.72)(t0.73)2.4雨水管道的水力计算根据每一设计管段所承担的汇水面积可就近排入附近雨水管道的原则,使用鸿业市政管线计算管段的设计流量、流速、坡度等,计算结果具体见附表2-1~8~ 第三章污水的处理程度3.1设计污水水量城市每天的平均污水量Q=∑q1•N1+∑Q工3式中Q—城市每天的平均污水量(m/d);3q1—各区的平均生活污水量定额[m/(cap•d)];N—各区人口数(cap);13Q工—工厂平均生活污水和工业废水量(m/d)。计算结果如下表。水厂近远期处理规模表3-1设计人口生活污水定额日平均生活污水集中排水量总排水量总排水量(L/s)(人)(250L/d·cap)量(m3/d)(m3/d)(m3/d)远期200000250.0050000.0012492.0562492.05723.28近期150000250.0037500.0012492.0549992.05578.61差值12500.00考虑10%的地下水渗透系数,则本设计,水厂的规模为3362492.05×(1+10%)=68742.2(m/d)=0.7956(m/s)最大日最大时设计秒流量Q=KZ•Q1+∑Q工式中Q—设计秒流量(L/s);Q—工业废水设计秒流量(L/s);工Q1—各区平均生活污水量(L/s);K—总变化系数。z50000×1000×1.38Q=+295.96=1094.57(L/s)86400考虑10%的地下水渗透后,设计秒流量为~9~ 31094.57×(1+10%)=1204.03(L/s)=104025.6(m/d)3.2设计污水水质嘉南市城市污水经取样分析,水质情况如表3-2。城市污水水质资料表3-2指标名称SS(mg/L)BOD5(mg/L)TN(mg/L)TP(mg/L)浓度250300658o指标名称T(C)PH浓度14~246.8~7.8据原始资料,污水厂进水缺失氨氮等指标,进分析取值如下氨氮浓度取20(mg/L),CODcr取600(mg/L),总碱度为300mg/L。3.3污水处理程度计算由于受纳水体的自净能力有限,污水厂的出水水质必须严格要求。污水厂的处理程度应根据受纳水体的流量、水质等确定或参照《城镇污水处理厂污染物排放标准》GB18918—2002执行。一级A标最高允许排放浓度(日均值)(单位:mg/L)表3-3序号1234567指标CODcrBOD5SS总氮N总磷PH值控制值5010101550.56~9受纳水体按四类水体计算。四类水体的各项指标如3-4四类水体的各项指标(单位:mg/L)表3-4序号1234567指标pH值DOCODBOD5NH3-N总磷总氮标准值6~933061.50.31.5~10~ 3.3.1污水的SS处理程度计算1.按水体中SS允许增加的量计算排放的SS浓度污水排入受纳水体后,假设污水与全部河水完全混合并稀释。(1)计算处理后污水总出水口的SS浓度Q河C=P(+1)+bessQ其中Cess—处理后污水的SS浓度(mg/L);P—污水排入河流后混合水体中允许增加的SS值(mg/L);b—河流中原有的SS浓度(mg/L);Q—污水排入河流95%保证率枯水位时的流量;河3Q—污水平均流量(m/s)258.9C=1.2(+1)+22=413.50mg/Less0.796(2)计算处理程度:C-C250-413.50eSSE===-65.4%1C250其中E—处理程度(%);1C—进水的浓度(mg/L);C—污水水质(mg/L)。eSS2.按二级生物处理后的水质排放标准计算SS处理程度根据国家《城镇污水处理厂污染物排放标准(GB18918-2002)》中规定城市二级污水处理厂一级A排放标准,总出水口处污水的SS浓度为10mg/L。C-C250-10eSSE===96.00%2C2503.计算SS处理程度从以上两种计算方法比较得出,方法2得出的处理程度高于方法1,所以本污水处理厂的SS的处理程度为96.00%。3.3.2污水的BOD处理程度计算1.按河流中溶解氧的最低容许浓度计算(用最高温度算)~11~ (1)求出水口处DO的混合浓度Q•DO+Q•DO河河DO=mQ+Q河式中DO—混合后出水口处水体中的溶解氧浓度(mg/L);m3Q—污水排入河流95%保证率枯水位时流量(m/L);河3Q—污水平均量(m/s);DO—合流原有的溶解氧浓度(mg/L);河DO—出水口处污水的溶解氧浓度(mg/L)。258.9×6+0.796×2.0DO==5.99m258.9+0.796(2)求出水口处水温的混合温度Q•t+Q•t河河t=mQ+Q河式中t-混合后出水口处水体中的水温(°C);mt-河流原有的水温(°C);河t-出水口处污水的水温(°C)。258.9×18.1+0.796×20t==18.1°Cm258.9+0.796(3)求水温为18.1°C时的耗氧速率常数k1值(tm-20)k=kθ1(18.1)1(20)-1式中k—18.1°C时的耗氧速率常数(d);1(18.1)-1k—20°C时的耗氧速率常数(d),一般采用0.1/d;1(20)θ—温度系数,采用1.047;(18.1-20)-1k=0.1×1.047=0.091d1(18.1)(4)求水温为18.1°C时的复氧速率常数k2值(tm-20)k=k1.0242(18.1)2(20)-1其中k—10.1°C时的复氧速率常数(d);2(18.1)-1k—20°C时的复氧速率常数(d),一般采用0.20~0.5,本2(20)设计取0.29/d;(18.1-20)-1k=0.29×1.024=0.28d2(18.1)(5)求起始点的亏氧量DO0和临界点的亏氧量DOc~12~ DO=DO-DO0smDO=DO-4.0cs式中DO-河流在污水排水的起始点处亏氧量浓度(mg/L);0oDO-18.1C时的饱和溶解氧浓度(mg/L),取9.46mg/L;sDO-河流在溶解氧为4.0mg/L的临界点亏氧量浓度(mg/L)。cDO=9.46-5.99=3.47mg/L0DO=9.46-4.00=5.46mg/Lc不同温度下的溶解氧量表3-5温度OC溶解氧(mg/L)温度oC溶解氧(mg/L)014.64189.46114.22199.27213.82209.08313.44218.90413.09228.73512.74238.57612.42248.41712.11258.25811.81268.11911.53277.961011.26287.821111.01297.691210.77307.561310.53317.431410.30327.301510.08337.18169.86347.07179.66356.95(6)求起始点的有机物浓度L0和临界时间tcDOk1L10k1tcc0k21k2DO0k2k1tclg1kkkkL12110~13~ 式中L-河流在污水排入的起始点处BOD浓度(mg/L);05t-河流从起始点流到临界点的临界时间(d)。c采用试算法或者代入法计算机进行计算得tc=1.30L0=20.01(7)求起始点允许的20°C时BOD5的浓度L=L(1-10k1(20)t)BOD50式中L-河流在污水排入的起始点处BOD浓度(mg/L);BOD55t-BOD的时间(d),一般采用t=5d。5(-0.1×5)L=20.011-10=13.68mg/LBOD5(8)计算污水处理厂允许排放的BOD5浓度QQ河河LeBOD5=LBOD5Q+1−QL河式中L-处理后污水允许排放的BOD浓度(mg/L);eBOD55L-河流中原有的BOD浓度(mg/L)。河5258.9258.9香䁕5=13.68+1−×2=3812.6/0.7960.796(9)计算处理程明显的,允许排放量超过了实际排放量,这是由于小水量排入大水体,所以忽略河流的自净能力,全部进行处理。2.按河流中BOD5的最高允许浓度计算污水排入受纳水体后,假设河水与全部污水完全混合,污水中的有机物是河水中有机物急剧上升。随着河水的流动,河水中有机物被生物氧化分解又会使河水中有机物逐渐恢复。(1)计算由污水排放口流到下游取水口处的时间x401000t0.386dv864001.2式中t-污水排放口流到下游取水口处的时间(d);x-污水排放口距下游取水口处的距离(m);v-河流中水流的流速(m/s)。(2)2.2将20°C标准下河流的BOD5值L5河和河流任意时段最高允许的BOD5值LSST的数值换算成18.1°C时的数值。~14~ L=L(1-10-k1(20)•t),L=5.85mg/L5ST00-0.09×5L=5.85×(1-10),L=3.60mg/L5ST5ST0.09×5L=L×(1-10),L=2.94mg/L5河00换算成18.1o时的L5河L-0.09x55河=4.68(1-10)=0.90mg/L式中L-20°C时河流任一时段最高允许的BOD值,一般采用4mg/L;5ST5L-20°C时河流任一时段最高的BOD。05(3)求18.1°C时的L5eBOD5的值河55香䁕5=−1−5河+10−110258.93.603.60=−2+0.79610−0.09×0.38610−0.09×0.386=622.21+3.90=626.12mg/L(4)将18.1oC时的BODo5换算成20C时的BOD5值626.12=L(1−10−0.109×50L0=881.69mg/LL=881.691−10−0.1×5=602.87mg/L5eBOD5(5)计算处理程度计算结果出现负值。3.按二级生物处理后的水质排放标准计算根据国家《城镇污水处理厂污染物排放标准(GB18918-2002)》中规定城市二级污水处理厂一级A排放标准,总出水口处污水的BOD5浓度为10mg/L。CC300-10eSSE===96.67%3C3004.计算BOD的处理浓度从以上三种计算方法可以看出,方法3得出的处理程度较高,所以本污水处理厂的BOD5的处理程度为96.67%。3.3.3污水的氨氮处理程度计算根据国家《城镇污水处理厂污染物排放标准》(GB18918-2002)中规定城市污水处理厂一级A标,总出口处为污水的氨氮浓度为5mg/LC-CeE=C~15~ 式中E—氨氮处理程度(%);C—进水氨氮浓度(mg/L);Ce—处理后污水允许排放的氨氮浓度(mg/L)。20−5==75%203.3.4污水的磷酸盐处理程度计算根据国家《城镇污水处理厂污染物排放标准》(GB18918-2002)中规定城市污水处理厂一级A标,总出口处为污水的磷酸盐浓度为5mg/LC-C8-0.5eE===93.75%C8式中E—磷酸盐处理程度(%);C—进水磷酸盐浓度(mg/L);Ce—处理后污水允许排放的磷酸盐度(mg/L)。综上所述,确定设计进出水水质及污染物去除率如表3-5设计进出水水质及污染物去除率(mg/L)表3-5指标BOD5CODcrSSTNTPNH3-N进水水质30045025065820出水水质105010150.55去除率(%)96.6788.8996.0076.9293.7575.00~16~ 第四章污水的一级处理4.1粗格栅设计计算粗格栅与污水泵站合建,选用2组并行,前后均设有挡板,2组同时运行,则单组设计流量为"=式中"—单组格栅设计流量(m3/s);—设计流量(m3/s);N—格栅设计组数(组)。1.204"=2=0.602m3/s1.栅条的间隙数Qsinαn=bhυ式中Q—最大设计流量,m3/s;—格栅倾角,(°),一般采用45°~75°,取=60°;b—栅条间隙,m,栅渣量较小时一般用0.016~0.025m,取b=0.020m;n—栅条间隙数,个;h—栅前水深,m,取h=1.00m;—过栅流速,m/s,一般采用0.6~1.0m/s,取=0.9m/s。计算草图如下图所示,格栅设2组,按2组同时工作设计。则:0.602t60=0.02×1.0×0.9=36个~17~ 图4-1格栅设计计算简图2.栅槽宽度B栅槽宽度一般比格栅宽0.2~0.3m,取0.2m;设栅条宽度S=10mm(0.01m)则栅槽宽度B=S(n-1)+bn+0.2=0.01×(36-1)+0.02×36+0.2=1.27≈1.303.栅槽总宽度B两栅槽之间间隔取0.7m则栅槽总宽度为B’=2B+0.7=1.3×2+0.70=3.30m4.通过格栅的水头损失h1o(1)进水渠道渐宽部分的长度L1。设进水渠宽B1=0.72m,其渐宽部分展开角度α=20,1进水渠道内的流速为0.84m/s。B-B1L=12tanα1~18~ 式中L—进水渠道渐宽部分长度,m;1—渐宽处角度,(º)。11.30-0.72L==0.80m12tan20°(2)进水渠道渐窄部分的长度B-B1L=22tanα2式中L2—出水渠道渐窄部分的长度(m);o2—渐窄处角度()2=1。1.30-0.72L=202tan20=0.8m(3)通过格栅的水头损失h=hk102h=sinα02g式中h—设计水头损失,m;1h—计算水头损失,m0g—重力加速度,m/s2;k—系数,格栅受污物堵塞时水头损失增大倍数,一般采用3;43S—阻力系数,与栅条断面形状有关,ξ=β,设栅条断面为锐边矩形断面,bβ=2.42。432Sυh=hk=βsinαk10b2g~19~ 420.010.93=3×2.42×()sin60°=0.10m0.022g(4)栅槽后总高度H=h+h+h12式中H—栅后明渠的总高度(m);h2—明渠超高(m),一般采用0.3~0.5,。设计中取h2=0.3H=1.0+0.1+0.3=1.4m(5)栅槽总长度H1L=L+L+0.5+1.0+12tanα式中,L—格栅槽总长度(m);H1—栅前渠道深,H=h+h,m。121.3L=0.8+0.8+0.5+1.0+tan60°=3.85m(6)每日栅渣量86400QW1W=1000式中W—每日栅渣量,m3/dW33331—每日每10m污水的栅渣量(m/10污水)。格栅间隙为16~25mm时W1一般取0.05~0.1m3/103污水,。本设计取W331=0.8m/10污水。1.204×86400×0.08W==8.3m3/d>0.2m3/d1000栅渣量比较大应采用机械除渣及皮带输送机或无轴输送栅渣,采用机械栅渣打包机将山楂打包,汽车运走。(7)进水与出水渠道~20~ 城市污水通过DN1200mm的管道送进水渠道,设计中取进水渠道宽度B1=0.72,进水水深h1=h=1.0m,出水渠道B2=B1=0.72m,出水渠道h2=h2=1.0m4.2细格栅设计计算泵后细格栅与沉砂池合建,选择两组故得单组设计流量为"=0.602m3/s1.栅槽宽度(1)栅条的间隙数Qsinαn=bhυ式中Q—最大设计流量,m3/s;—格栅倾角,(°),一般采用45°~75°,取=60°;b—栅条间隙,m,取b=0.01m;n—栅条间隙数,个;h—栅前水深,m,取h=1.20m;—过栅流速,m/s,一般采用0.6~1.0m/s,取=0.9m/s。计算草图如下图4-2所示,格栅设两组,按两组同时工作设计。则:0.602t60=0.01×1.2×0.9=48个~21~ 图4-2细格栅设计计算示意图格栅设两组,按两组同时工作设计。则:(2)栅槽宽度B栅槽宽度一般比格栅宽0.2~0.3m,取0.2m;设栅条宽度S=10mm(0.01m)则栅槽宽度B=S(n-1)+bn+0.2=0.01×(48-1)+0.01×48+0.2=1.15≈1.20(3)栅槽总宽度B两栅槽之间间隔取0.7m则栅槽总宽度为B’=2B+0.7=1.2×2+0.70=3.1m3、通过格栅的水头损失h1o1.进水渠道渐宽部分的长度L1。设进水渠宽B1=0.72m,其渐宽部分展开角度α=20,1进水渠道内的流速为0.84m/s。B-B1L=12tanα1式中L—进水渠道渐宽部分长度,m;1—渐宽处角度,(º)。1~22~ 1.20-0.72L=≈0.66m12tan20°2.进水渠道渐窄部分的长度B-B1L=22tanα2式中L2—出水渠道渐窄部分的长度(m);o2—渐窄处角度()2=1。1.20-0.72L=202tan20=0.66m3.通过格栅的水头损失h=hk102h=sinα02g式中h—设计水头损失,m;1h—计算水头损失,m0g—重力加速度,m/s2;k—系数,格栅受污物堵塞时水头损失增大倍数,一般采用3;43S—阻力系数,与栅条断面形状有关,ξ=β,设栅条断面为锐边矩形断面,bβ=2.42。432Sυh=hk=βsinαk10b2g420.010.93=3×2.42×()sin60°=0.25m0.012g4.栅槽后总高度~23~ H=h+h+h12式中H—栅后明渠的总高度(m);h2—明渠超高(m),一般采用0.3~0.5,。设计中取h2=0.3H=1.2+0.25+0.3=1.75m5.栅槽总长度H1L=L+L+0.5+1.0+12tanα式中,L—格栅槽总长度(m);H1—栅前渠道深,H=h+h,m。121.2L=0.66+0.66+0.5+1.0+tan60°=3.51m6.每日栅渣量86400QW1W=1000式中W—每日栅渣量,m3/dW33331—每日每10m污水的栅渣量(m/10污水)。本设计取W331=0.05m/10污水。1.204×86400×0.05W==5.20m3/d>0.2m3/d1000采用机械除渣及皮带输送机或无轴输送栅渣,采用机械栅渣打包机将山楂打包,汽车运走。7.进水与出水渠道城市污水通过泵房提升至细格栅,设计中取进水渠道宽度B1=0.72,进水水深h1=h=1.2m,出水渠道B2=B1=0.72m,出水渠道h2=h2=1.2m4.3沉砂池设计计算设计中选择二组平流式沉砂池,N=2组,分别与格栅连接,每组沉砂池设计流量为~24~ Q=0.602m3/s1.沉砂部分长度LL=v×t式中L—沉砂池的长度(m);v—设计流量时的速度,m/s,一般采用0.15~0.25m/s取0.20m/s;t—设计流量时的停留时间,s,取60s。L=0.1560=12m2.水流断面面积AQA=v式中A—水流过水断面面积3Q—设计流量,m/s0.6022A==2.41m0.253.池总宽度BAB=h2式中B—沉砂池宽度(cm)h2—设计有效水深(m),一般采用0.25~1.00。本设计取h2=0.9m,每组沉砂池设两格,每格宽度为2.41B=2=1.34m0.94.沉砂室所需容积V86400×Q×T×XV=610式中Q—平均流量(m3/s);363X—城镇污水的沉砂量,一般采用30m/10m污水;T—排砂时间间隔,d,取2d。86400×0.796×2×303V==4.13m6105.每个沉砂斗容积每个沉砂斗的容积(V)设每一个分格有2个沉砂斗,则共有4个沉砂斗,则0~25~ VV=0n式中V30—每个沉砂斗容积(m);n—沉砂斗个数,个。设计中取每个分格有两个沉砂斗,共有n=2×2×2=8个沉砂斗4.133V==0.516m086.沉砂斗高度沉砂斗高度应能满足沉砂斗存储沉砂的要求,沉砂斗的倾角>60o。"30=31+12+2式中"—沉砂斗的高度(m);3—沉砂斗上口面积(m2);1—沉砂斗下口面积(m2),一般用0.4×0.4~0.6×0.6。2本设计中取沉砂斗上口面积为1.34×1.34m,下口面积为0.6×0.63×0.516"==0.5531.34×1.34+1.342×0.66+0.62设计中沉砂斗高度"=0.70m,校核该沉砂斗角度tg=2"/(1.34-0.6)=1.89,=62>3360o满足要求。7.沉砂室高度h’3=h3il2式中h3—沉砂室高度(m);i—沉砂室池底坡度,一般采用0.01~0.02;l2—沉砂池底长度(m)。设计中取沉砂池底坡度为i=0.02。13=0.70+0.02×12−2×1.34=0.8028.沉砂池总高度H=h1+h2+h3式中H—沉砂池总高度(m);h1—沉砂池超高(m),一般采用0.3~0.5m。设计中取0.3mH=0.3+0.9+0.8=2.0m9.验算最小流速~26~ tt=1t式中t—最小流速(m/s),一般采用≥0.15/;—最小流量(m3/s),一般采用0.75;tn1—沉砂池格数(个),最小流量时取1;—最小流量时过水断面面积(m2)。t0.75×0.796t==0.50/>0.15/11××2.41210.进水渠道格栅的出水通过DN1600mm的管道送入沉砂池的给水渠道,然后向两侧配水井进水水渠,污水在渠道内的流速为:1=1∙1式中1—进水渠道水流流速(m/s);1—进水渠道宽度(m);1—进水渠道水深(m)。设计中取1=1.2m,1=0.8m0.6021==0.63/1.2×0.811.出水管道出水管道采用薄壁出水堰跌落出水,污水堰可保证沉砂池内水位标高恒定,堰上水头121=(322式中1—堰上水头(m);—沉砂池内设计流量(m3/s);1—流量系数,一般采用0.4~0.5;b2—堰宽(m),等于沉砂池宽度。设计中取m=0.4,b2=1.300.60221=(3=0.262×0.4×1.30×2×9.8出水堰自由跌落0.1~0.15m后进入出水槽,出水槽宽1.0m,有效水深0.8m,水流流速0.63m/s,出水流入出水管道。出水管采用钢管,管径DN1200mm,管内流速2=0.96m/s,水力坡度t=0.008。12.排砂管道采用沉砂池底部管道排砂,排砂管道管径DN=200。平流式沉砂池平面布置如图所示:~27~ 图4-3平流沉砂池计算简图4.4配水井的设计计算设计流量为Q=1.204m3/s,沉砂池出水汇合后使用一根进水管进入配水井,污水在配水井内进行平均分配,然后分别进入2个初沉池中。本设计布置一座配水井,水力停留时间:t=2min。1.配水井内中心管直径D′=4Q1πv2式中v2—配水井内中心管上升流速(m/s),一般采用v2≥0.6m/s。设计中取v2=0.91m/s′4×1.204D==1.31m1π×0.9~28~ 取DN1300mm。2.配水井内径D=4Q+D21πv3式中v3─配水井内污水流速(m/s),一般取v3=0.2~0.4m/s设计中取v3=0.2m/s4×1.2042D=+1.30=3.05mπ×0.2取直径4m。3.配水井的有效容积V=Q×t=1.204×120=144.48m3,4.配水井的有效水深VV144.48h====2.87m22AπR3.14×4式中h—配水井有效水深,m;A—配水井过水断面面积,m2。5.配水井总高H=h+h1式中H—配水井总高,m;h—配水井有效水深,m;h1—配水井超高,m;本设计取配水井超高h1=0.3mH=2.87+0.3=3.17m,取3.2m配水井的出水管配水井的出水管采用2根DN900钢管,出水分别送到2个初沉池中。管内流速2=0.95m/s,水力坡度t=0.0011。配水井设计计算简图~29~ 4.5初沉池设计计算本设计采用中心进水,周边出水的辐流式初,设置2座,每座沉淀池设计流量为Q=0.602m3/s。1.沉淀池面积Q0.602×36002F===1083.6mq2b式中F—沉淀部分有效面积(m2);Q—设计流量(m3/s);q3232’3b—表面负荷,m/(m·h),一般采用1.5~3m/(m·h),本设计采用q=2m/(m2·h)。2.沉淀池直径为D=4A=4×1083.6=37.15m,取38m3.14设计取二沉池的直径为D=38m,实际表面负荷的值为1.9m3/s。3.沉淀池有效水深h2=qb×t式中h2—沉淀池的有效水深(m);t—沉淀时间(h),一般采用1~3.0h,本设计取沉淀时间取t=2.8h,h2=1.2×2.8=3.36m,取3.4m。4.径深比䁕36==10.5823.4符合(6~12)的要求。5.污泥部分所需容积(1)按设计人口计算h=1000∙式中V—污泥部分所需容积(m);S—每人每日污泥量[/(人∙],一般采用0.3~0.8L/(人·d);T—两次清除污泥的时间(d),一般采用重力排泥时,T=1~2d,采用机械刮泥排泥时,T=0.05~2d。N—设计人日数(人);n—沉淀池组数。~30~ 设计中取S=0.6L/人·d,采用机械刮泥排泥时,清除污泥间隔时间T=0.1d。0.6×200000×0.1==631000×2(2)按去除水中悬浮物计1−286400h100=100−×1060式中—设计平均流量m3/s;C1—进水悬浮物浓度(mg/L);C2—出水悬浮物浓度(mg/L),一般采用沉淀效率=40%~60%;—污泥容重(t/m3),约为1;Po—污泥含水率(%)。T—排泥的时间间隔(d);本设计取T=0.1d,P0=97%,沉淀效率取P=50%,则C2=(100%-50%)×C1=0.5C1。0.796(250−0.5×250×86400×0.1×100==14.333(100−97×2×1066.污泥量(1)按设计人口计算h=1000∙式中V—污泥部分所需容积(m3);S—每人每日污泥量[L/(人·d)],一般采用0.3~0.8[L/(人·d)];T—两次清除污泥间隔时间(d),采用机械刮泥排泥时,一般采用4h;n—沉淀池分格数。设计中取S=3[L/(人·d)],设计中排除污泥的间隔时间采用4h。0.3×200000×4==531000×2×24(2)按去除水中悬浮物计算(1−224h100=2100−0式中Q—设计流量m3/s;C31—进水悬浮物浓度(kg/m);C32—出水悬浮物浓度(kg/m);K2—生活污水量总变化系数;—污泥容重(kg/m3),一般采用1000(kg/m3);PO—污泥含水率(%)。0.796×3600(0.25−0.4×0.25)×4×100==23.88100(100−97)×2两种计算结果取较大的那一个值~31~ 初沉池污泥量Q331=2×6×23.88=286.56/d=23.88m/次。以每次排泥时间30min计,每次排泥量47.76m3/h=0.0123m3/s。辐流沉淀池采用周边传动刮泥机,周边传动刮泥机的周边线速度为2~3m/min,将污泥推人污泥斗,然后用静水压力将污泥排出池外。1.污泥区总高度H=h1+h2+h3+h4+h5式中H—沉淀池总高度(m);h1—沉淀池超高(m),一般采用0.3~0.5m;h2—沉淀池有效水深(m);h3—沉淀池缓冲层高度(m),一般采用0.3m;h4—沉淀池底部圆锥体高度(m);h5—污泥斗高度(m)。设计中取超高h1=0.3m,h3=0.3m,h2=3.0m辐流式沉淀池瞎用周边传动刮泥机,池底径向坡度为0.05,刮泥机连续转动将污泥推入污泥斗,选择使用圆形污泥斗,污泥斗底部直径D2=2m,上部直径D1=3.0m,倾角为60o。1圆锥体高度(䁕−䁕1)(37−3)5=×0.05=×0.05=0.8522圆锥体体积×522=×䁕1+䁕1䁕+䁕12×0.85=×3.03+3.0×37+372212=331.1832污泥斗的高度䁕1−䁕25=洠6023.0−2.0=×洠60=0.872污泥斗体积×6221=12×䁕1+䁕1䁕2+䁕2×0.8732=×3.0+3.0×2+212=4.33m3=+=331.18+4.33=335.513312H=h1+h2+h3+h4+h5=0.3+3.4+0.3+0.85+0.87=6.29m2.进水管~32~ 初沉池的进水管为配水井的出水管,选择使用DN900mm的钢管,管内流速2=0.95m/s,水力坡度t=0.0011。3.沉淀池进水管及配水花墙沉淀池分为二组,每组沉淀池采用池中心进水,通过配水花墙和稳流罩向池四周流动。进水管道采用钢管,流量为0.602m3/s,取管径DN=900mm,则管内流速v=0.95m/s,水力坡度为i=0.0011,进水管道顶部设穿孔花墙处的管径为DN=1400mm。沉淀池中心管配水采用穿孔花墙配水,穿孔花墙位于沉淀池中心管上部,布置6个穿孔花墙,过孔流速=333式中v—穿孔花墙过孔流速m/s;3—孔洞的宽度(m);3—孔洞的高度(m);n3—孔洞数量(个)。设计中取3=0.3,3=1.4m,n3=6个0.602==0.24/0.3×6×1.4符合要求。孔距䁕5−63==0.446穿孔花墙向四周辐射平均布置,穿孔花墙四周设稳流罩,稳流罩直径3.0m,高2.0m,在稳流罩上平均分布∅100的孔洞306个,孔洞的总面积为稳流罩过水断面的15%。4.出水堰沉淀池出水经过双侧出水堰跌落进入集水槽,然后汇人出水管道排入集水井。出水堰采用双侧90o三角形出水堰,三角堰顶宽0.16深0.08,间距0.05,外侧二角堰距沉淀池内壁0.4m,三角堰直径为37-0.8=37.8m外侧三角堰个数为36.2×==542个外0.16+0.05内侧三角堰距挡渣板0.4m,两侧三角堰宽度为0.6m,则内侧三角堰直径为37-0.8-1.2=35m内侧三角堰个数为35×==524个内0.16+0.05三角堰后自由铁跌落0.1~0.15,三角堰有效水深为=0.72511式中Q31—三角堰流量(m/s);~33~ H1—三角堰水深(m),一般采用三角堰高度的1/2~2/3。250.6021=0.7×=0.044524+524三角堰堰后自由跌落0.15m,则堰水头损失0.194m10.堰上负荷1=2×䁕1式中q1—堰上负荷[L/(s·m)],一般小于2.9L/s;D1—三角堰出水渠道平均直径(m);0.6021==2.48/<2.9/2××(37−1.4符合要求。11.出水挡渣板二角堰前设有出水浮渣挡渣板,利用刮泥机桁架上的浮渣刮板收集。挡渣板高出水面0.15m,伸入水下0.5m,在挡渣板旁设一个浮渣收集装置,采用管径DN300mm的排渣管排出池外。12.出水渠道出水槽设在沉淀池四周,双侧收集三角堰出水,距离沉淀池内壁0.4m,出水槽宽0.6m,深0.8m,有效水深0.60m,水平流速为0.602==0.84/2×0.6×0.6出水槽将三角堰出水汇集送人出水管道,出水管道采用钢管,管径DN=1000mm,管内流速v0.77m/s,水力坡度为0.006。13.刮泥装置沉淀池采用周边传动刮泥机,周边传动刮泥机的线速度为2~3m/s刮泥机底部设有刮泥板,将污泥推入污泥斗,刮泥机上部设有刮渣板,将浮渣刮进排渣装置。~34~ 第五章污水厂的生化处理5.1A2O生化池的设计计算1.设计流量3生化池水力停留时间一般超过8h,按平均时流量设计=68742m/d2.进出水水质国内污水处理厂一级处理一般可去除SS30%—40%,本工程按40%计。BOD5的去除率按20%计。则有SSe=SS0×(1-30%)=250×(1-40%)=150mg/LSe=S0×(1-20%)=300×(1-20%)=240mg/L根据《典型的生活污水水质》及邻近水厂水质资料,本设计取污水厂的总碱度(CaCO3)为300mg/L。则A2O生物池的进水水质如下表A2O生物池的进水水质表5-1指标名称SS(mg/L)BOD5(mg/L)TN(mg/L)TP(mg/L)总碱度(mg/L)指标值150240658300o指标名称T(C)PHCODNH3-N指标值14~246.8~7.860020出水水质按《城镇污水处理厂污染物排放标准》GB18918—2002规定中的一级A标执行。23.判断是否可采用A/O法香䁕600==9.23>8h65h8==0.033<0.06香䁕5240符合要求。4.有关设计参数1BOD5污泥负荷,一般取N=0.13~0.2kgBOD5/(kgMLSS∙),本设计取N=0.14kgBOD5/(kgMLSS∙);~35~ 2回流污泥浓度XR=8000mg/L;3污泥回流比R=100%;14混合液悬浮固体浓度==×8000=4000/1+1+1TN0TNe65-155TN的去除率:ηTN=×100%=×100%=77%TN065TN0.776混合液内回流比;Ri=×100%=×100%=334%由于内回流大于300%11-0.77TN后再继续提高处理效果提高不明显,因此本设计取Ri=300%35.反应池容积V,m068742===2946030.14×40001反应池总水力停留时间:29460===0.43=10.3268742各段水力停留时间和容积:厌氧:缺氧:好养=1:1:32厌氧池水力停留时间t厌=0.2×10.32=2.06h,池容V厌=2.06×29460=4910.13。33缺氧池水力停留时间t缺=0.2×10.32=2.06h,池容V缺=2.06×29460=4910.1。34好氧池水力停留时间t好=0.6×10.32=6.19h,池容V好=2.19×29460=19460。6.校核氮磷负荷,kg/(kgMLSS∙d)好养段总氮负荷∙h068742×65==0.57/(䁠∙>0.5/(䁠∙4000×23806.8好不满足,出水水质达不到要求需要后续的深度处理解决。厌氧段总磷负荷∙h068742×8==0.28/(䁠∙<0.6/(䁠∙4000×5951.7厌符合要求。~36~ 7.剩余污泥量∆=+=0−−=h−h×50%取污泥增值系数Y=0.6,污泥自身氧化率kd=0.05,将值带入以上两式=0.6×687420.24−0.01−0.05×40173.9×4=5362/=0.15−0.01×68742×50%=4812/∆=5362+4812=10174/8.碱度校核SALK1=进水碱度-消化消耗碱度=反消化产生碱度+去除BOD5产生碱度假设生物污泥中含氮量以12.4%计,则:每日用于合成的总氮量=0.124×5362=664.87/进水总氮中有664.87×1000=9.67(/68742被氧化的氨氮=进水总氮−出水总氮−用于合成的总氮量65-5-9.67=50.33mg/l所需脱硝量还原的硝酸盐氮量1=68742×40.33×40.33×=2772.23/1000将值带入:剩余碱1=280−7.14×50.33+3.57×40.33+0.1240−10=107.63/>100/洠香3可以维持=7.2的环境。9.反应池主要尺寸反应池总容积V=29460.863;设反应池4组,单组池容积29460.87===7365.223单44有效水深h=4.0m;~37~ 单组有效面积单7365.22===1841.302单4采用5道廊道式推流式反应池,廊道宽b=6.0m;单组反应池长度单1841.30===61.33,取615×7.0则单个池子长61m,宽为5×6=30校核:b/h=1.5(满足b/h=1~2)L/b=10(满足L/B=5~10)设计取超高为1.0m,则反应池总高H=4.0+1.0=5.0m设计简图如图5-1。000840000006610003500图5-1生化池设计平面图~38~ 图5-2生化池设计剖面图10.反应池进出水系统计算初沉池来水通过在集配水井中汇合,在分两根水管进入两组反应池。1进水管两组反应池进水管设计流量1.204===0.6023/122管道流速取v=0.9m/s,则过水断面面积1602===0.668920.9管径44×0.6689===0.923进水管管径取DN=900mm。2回流污泥管两组反应池回流污泥管设计流量=×=0.6023/2管道流速取v=0.95m/s回流污泥管管径取DN=900mm。~39~ 3进水孔厌氧池进水口尺寸:进水孔流量1.204=1+=1+1=0.6023/244孔口流速v=0.6m/s;孔口过水断面20.602===1.0020.6孔口尺寸取为××=1.0×1.5=1.3224池子间的进水孔口2设计尺寸为0.5×0.5=0.25m,则需要4个孔口。5出水堰及出水井按矩形堰流量公式计算:=0.42232368742=1++=1+1+3=0.7973/3内44232330.797===0.141.861.86×6式中b—堰宽,取6m。出水孔过流量==0.7973/43孔口流速v=0.6m/s;孔口过水断面面积30.797===1.3320.6孔口尺寸取为2.0×0.7;出水井平面尺寸取为2.6×0.76出水总流量及管径反应池出水管设计流量Q=Q=0.3983/52管道流速v=0.8m/s;管道过水断面~40~ 50.3982===0.500.8管径44×0.50===0.796取出水管径DN=800mm;检核管道流速50.398===0.6324×0.82符合要求。11.曝气系统设计计算1设计需氧量AOR=去除BOD5需氧量-剩余污泥中BOD5氧气当量+氨氮消化需氧量-剩余污泥中氨氮的氧当量-反消化脱氮产氧量碳化需氧量D1:Q(S-S)0eD1=-1.42PX0.23×51-e2=15522.68(kgO/d)硝化需氧量D2:D2=4.6(TN0-Ne(NH3-N))-4.6×12.4%PX=15914.38kgO2/d反硝化脱氮产生的氧量D3:D3=2.86NT=2.86×2772.23=7928.57kgO2/d总需氧量AOR=D1+D2-D3=15522.68+15914.38+7928.57=23508.48kgO2/d=979kgO2/h最大需氧量与平均需氧量之比为1.4,则AORmax=1.4R=32911.89kgO2/d=1371.33kgO2/h去除每1kgBOD5的需氧量=AOR/[Q(S0-S)]=1.49(kgO2/kgBOD5)~41~ 2标准需氧量SOR:本工程采用鼓风曝气,微孔曝气器。微孔曝气器设于池底,距池底0.20m,淹没水深=h-0.20=4-0.20=3.8m,氧转移效率按EA=20%,算温度T=标准需氧量SOR:AOR-Cs(20)SOR=(T20)α(βρC-C)×1.024sm(T)L式中Cs(20)—水温20℃时清水中溶解氧的饱和度,mg/L,查手册的表得水中溶解氧饱和度Cs(20)=9.17mg/L,Cs(24)=8.41mg/L;Csm(T)—设计水温T℃时好氧反应池中平均溶解氧的饱和度,mg/L;空气扩散器出口处绝对压力pb3pb=p0+9.8×10×淹没水深535=1.013×10+9.8×10×3.80=1.39×10Pa空气离开好氧池时氧的百分比:21(1EA)21(120%)Ot===17.54%7921(1E)7921(120%)ApbQtCsm(24)=Cs(24)(+)52.066104251.39×1017.54=8.41×(+)=9.15mg/L52.066×1042T—设计污水温度,本设计T=24℃考虑;CL—好氧反应池中溶解氧浓度,取2mg/L;工程所在地区大气压ρ—气压调整系数,ρ=,本工程所在地区大气压为51.01105P=723×133=0.962×10Pa考虑,故此ρ=0.900;α—污水传氧速率与清水传氧速率之比,一般为0.8—0.85,本设计取α=0.82;β—污水中饱和溶解氧与清水中饱和溶解氧之比,一般为0.9—0.97,本设计取β=0.95;标准需氧量SOR:~42~ 27659×9.17SOR=(124-20)0.82(0.95×0.900×8.41-2)×1.024=37576.17kgO2/d=1565.68kgO2/h最大时需氧量SORmax=1.4SOP=1.4×1565.68=2363.93kgO2/h好氧反应池平均时供气量Gs:SOR37576333Gs===626269.44.m/d=26094.56m/h=434.9m/min0.3E0.3×20%A333最大时供气量Gsmax=1.4GS=36523m/h=10.15m/s=608.86m/min单池供气量:Gs26094.5633Gs单===6438m/h=1.79m/s44所需空气压力p(相对压力):P=h1+h2+h3+h4+Δh式中h1—供风管道沿程阻力,取h1=0.1m;h2—供风管道局部阻力,0.1;h3—曝气器淹没水头,h3=3.8m;h4—曝气器阻力,取为0.4m;Δh—富余水头,一般Δh=0.003~0.005MPa,取Δh=0.5m。P=h1+h2+h3+h4+Δh=0.1+0.1+3.8+0.4+0.5=4.9m3曝气器数量(以单组池计):单池标准需氧量SOR单:SORmax2363SOR单===590.75kgO2/h44按供氧能力计算所需曝气器数量采用微孔曝气器,参照有关手册,工作水深3.8m,在供风量1~3m2/(h·个)时,曝气器氧利用率EA=20%,服务面积0.3~0.75m2,充氧能力qc=0.14kgO2/(h·个)。则:SOR单n=qc~43~ 式中n—按供养能力所需曝气器个数,个;qc=曝气器标准状态下,与好养反应池工作条件接近时的供养能能力,kgO2/(h∙2个)。采用微孔曝气器,参照有关手册,工作水深3.8m,在供风量1~3m/(h·个)2时,曝气器氧利用率EA=20%,服务面积0.3~0.75m,充氧能力qc=0.14kgO2/(h·个)。590.75n==4220个0.14以微孔曝气器服务面积进行校核:41×4×7.5===0.292<0.752符合要求142204通风管道计算供风干管采用环状布置。33流量Qs=1/4Gs=0.25×36523=9130.75(m/h)=2.54(m/h)流速取v=10m/s;44×2.54管径===0.57取干管管径为DN500mm。单侧供气(向单侧廊道供气)支管1洠䁣3652333=×==3043.6/=0.85/单3412流速v=10m/s;4单4×0.85管径===0.33取单侧供气支管管径DN350。双侧供气支管2洠䁣3652333=×==6086/=1.68/双346~44~ 流速v=10m/s;4双4×1.68管径===0.46取双侧供气支管管径DN500。12.厌氧池设备选择(一旦组反应池计算)厌氧池设导流墙,将厌氧池分成3格,每3格内设有搅拌机1台,所需功率按5W/m池容计算。3厌氧池有效容积V厌=41×7.5×4.0=1230混合全池污水所需功率为5×1230=6150()13.缺氧池设备选择缺氧池设备选择与厌氧池设计相同,缺氧池池所需功率为。14.污泥回流设备污泥回流比为R=100%;33污泥回流量QR=RQ=1×68742=68742m/d=2864.25m/h设回流污泥泵房1座,内设3台潜污泵(2用1备);11单台流量单==×2864.25=1432.13/22水泵扬程根据厌氧池和二沉池高差确定。详加污水厂的高程布置。15.混合液回流设备1混合液回流泵混合液回流比为R内=300%;33混合液回流量QR=R内=3×68742=206226m/d=8592.75m/h~45~ 设回流污泥泵房1座,内设3台潜污泵(2用1备);11单台流量==×8592.75=2148.193/单442混合液回流管。回流混合液有出水井重力回流至混合液回流泵房,井潜污泵提升后送至缺氧段首端。混合液回流管段设计流量0.59736=内=3×=44泵房进水管采用v=0.8m/s;管道过水断面60.5972===0.7460.8管径44×0.746===0.97取管径DN1000校核管道流速60.597==23.14×1244=0.70m/s3/;3泵房压力出水总管设计流量Q7=Q6=0.597设计流量采用1.4m/s;管道过水断面~46~ 60.597===0.42621.4管径44×0.426===0.736管径取DN800。16.设备房的设计尺寸:鼓风机房设计尺寸为L××=15×6×6配电室设计尺寸为××=8×6×65.2二沉池的设计计算本设计采用中心进水,周边出水的辐流式沉淀池,设置4座,每座沉淀池设计流量为Q=0.301m3/s。1.沉淀池面积Q0.301×36002F===903mq1.2b式中F—沉淀部分有效面积(m2);Q—设计流量(m3/s);q323232b—表面负荷,m(/m·h),一般采用0.5~1.5m(/m·h),本设计采用1.2m(/m·h)。2.沉淀池直径为D=4A=4×903=33.91m3.14设计取二沉池的直径为D=36m,实际F值为1017.36m23.校核固体负荷24×(1+1)=~47~ 式中—污水平均流量(m3/h);X—混合液中悬浮固体浓度/3;n—沉淀池个数。24×1+1×2864×4==135.13<1504×1017.36符合要求。4.沉淀池有效水深h2=qb×t式中h2—沉淀池的有效水深(m);t—沉淀时间(h),一般采用1.5~3.0h,本设计取沉淀时间取t=2.5h,h2=1.2×2.5=3m5.径深比䁕36==1223符合(6~12)的要求。6.污泥部分所需容积设计采用周边传动的刮泥机排泥,为防止磷在池中发生厌氧释放,故贮泥时间采用2h。2T(1+R)QXV=X+Xr式中—污水平均流量(m3/s);R—污泥回流比(%);X—曝气池污泥浓度(mg/L);Xr—二沉池排泥浓度(mg/L)。本设计中平均流量为=0.796m3/s;106=h=1+式中SVI—污泥容积指数,一般采用70~150;r—系数,一般采用1.2.设计中取SVI=100106=×1.2=120001001=×12000=60001+1~48~ 4(1+1)×0.301×3600×60003V==3889.60m(6000+12000)7.污泥区总高度H=h1+h2+h3+h4+h5+h6式中H—沉淀池总高度(m);h1—沉淀池超高(m),一般采用0.3~0.5m;h2—沉淀池有效水深(m);h3—沉淀池缓冲层高度(m),一般采用0.3m;h4—污泥区垂直段的高度(m);h5—沉淀池底部圆锥体高度(m);h6—污泥斗高度(m)。设计中取超高h1=0.3m,h3=0.3m,h2=3.0m根据污泥池部分容积过大以及二沉池污泥的特点,采用机械挂吸泥机连续排泥,池底径向坡度为0.05,污泥斗底部直径Do2=2m,上部直径D1=3.0m,倾角为60。3圆锥体高度(䁕−䁕1)(36−3)5=×0.05=×0.05=0.825≈0.8322圆锥体体积×522=×䁕1+䁕1䁕+䁕12×0.83=×3.03+3.0×36+362212=3429.2334污泥斗的高度䁕1−䁕26=洠6023.0−2.0=×洠60=0.872污泥斗体积×6221=12×䁕1+䁕1䁕2+䁕2×0.8732=×3.0+3.0×2+212=4.33m35污泥区垂直段的高度−1−23889.60−4.33−3429.234==1017.36=0.45m~49~ H=h1+h2+h3+h4+h5+h6=0.3+3.0+0.3+0.83+0.45+0.87=5.75m8.进水管的计算Q1=Q+RQ0式中Q3/1—进水管设计流量,Q—单池设计流量3/;R—污泥回流比,%;Q3/。0—单池污水平均流量3/,单池污水平均流量Q3设计中单池设计流量为Q=0.3010=0.796m/LQ31=0.301+1×0.796/4=0.500m/s设计流速为v=0.9m/s10.5002===0.560.9管径D4A4×0.563===0.81m3.14取进水管管径D3=800mm进水总管设计流量为Q=2m2/s,管径为DN=16009.出水管管径出水管管径D4=1300mm44×1.204===1.1/4䁕24×0.924符合要求。10.进水竖井计算进水竖井直径采用D5=1.6m;进水竖井采用多孔配水,配水口尺寸洠×=0.5×1.5m,共设留个沿井壁均匀布置;流速10.500===0.11<0.15~0.20.5×1.5×6符合要求。孔距䁕5−6洠==0.55611.稳流筒计算筒中流速v=0.02~0.03m/s,设计中取v=0.02m/s。稳流筒过流面积~50~ 10.500===25230.02稳流筒直径44×25䁕=+䁕2=+22=5.98,取6。6212.出水槽计算采用双边90o三角堰环形出水槽集水,出水槽沿池壁环形布置,环形槽中水流由左右两侧汇入出水口。流量:3Q=0.301m/s集水槽中流速v=0.7m/s;设集水槽宽B=0.6m;槽内终点水深h2:Q0.301h2===0.72mvB0.7×0.6槽内起点水深h1:32hk2h1=+h2h22αQhk=32gB式中hk—槽内临界水深(m);α—系数,一般采用1;g—重力加速度。20.301hk=3=0.16m29.81×0.632×0.162h1=+0.72=0.76m0.72设计中取出水堰后自由跌落0.10m,集水槽高度:0.1+0.76=0.77m,设计取0.78m,集水槽断面尺寸为:0.6m×0.78m。13.出水堰计算~51~ Qq=nLn=bL=L+L1225h=0.7Qq=0L式中q—三角堰单堰流量(L/s);Q—设计流量(L/s);L—积水堰总长度(m);L1—积水堰外侧堰长(m);L2—积水堰内侧堰长(m);n—三角堰数量(个);b—三角堰单宽(m);h—堰上水头(m);q0—堰上负荷[L/(s·m)。设计中取b=0.10m,水槽距池壁0.5m,L1=(36-1.0)=109.9mL2=(36-1.0-0.6×2)=106.13mL=L+L=109.90+102.13=212.00m12校验出水堰负荷Q0.500×1000q===2.35L/(s·m)0L212.0负荷在1.5~2.9L/(s·m)之间,符合要求。14.排泥装置沉淀池采用周边传动刮吸泥机,周边传动刮吸泥机的线速度为2~3m/min,刮吸泥机底部设有刮泥板和吸泥管,利用静水压力渐污泥吸入污泥槽,沿进水竖井中的排泥管将污~52~ 泥排出池外。排泥管径DN500mm。15.积配水井的设计计算(1)配水井中心管直径4䁕2=2式中D2—配水井中心管直径(m);v2—中心管内污水流速(m/s);Q—设计流量(m3/s)。设计中v32=0.9m/s,Q=2.0m/s4×2.0䁕2==1.680.9(2)配水井直径4×2.0䁕=+䁕2323式中D3—配水井中心管直径(m);v3—中心管内污水流速(m/s);设计中取v3=0.3(m/s)。4×2.0䁕3=+1.72=2.91取3.0。0.3(3)集水井直径4䁕=+D2131式中D3—配水井中心管直径(m);v3—中心管内污水流速(m/s);设计中取v3=0.3(m/s)。4×1.204䁕1=+9=3.76,取4.00.3(4)总出水管管径取出水管管径DN=1300mm,v=0.90m/s。(5)刮泥设备采用ZBG-34型周边传动刮泥机2台,一用一备,臂径为38m,功率2.0kw。周边传动刮吸泥机的线速度为2~3m/min,利用静水压力将污泥吸入污泥槽,沿排泥管将污~53~ 泥排出池外。图5-3辐流沉淀池计算简图第六章污水的深度处理6.1机械混合池计算采用桨板式机械混合池4座,则单池的设计流量为Q=0.301m3/s。~54~ 1.设计计算(1)混合池有效容积QTW=60n3式中W—有效容积(m);T—混合时间(min);3Q—处理水量(m/h);n—池子个数,个。333设计中取Q=12040.03m/d=4334.4m/h=1.204m/s;T=0.5min;n=2个,则4334.4×0.53W==18.06m60×2(2)混合池的水深H=4W/䁕21式中H1—混合池的有效水深,m;D—混合池的有效直径,m;本设计取直径D=2.6m。H=4=4×18.06/2.62=3.4m11取超高为0.3m,则池总高H=H1+0.40=3.8m;(3)搅拌直径2D0=D=1.73m,设计中取1.80m。3(4)搅拌器宽度B=0.1D=0.26m,设计中取0.30m。(5)搅拌器层数H:D=1.3≤(1.2~1.3)设计中取1层。(6)搅拌器页数:Z=4;(7)搅拌器距池底高度:0.75D0=1.35m(8)搅拌池转速60vn0=D0式中n0—搅拌器转速(r/min);v—搅拌器外缘速度(m/s);D0—搅拌器直径(m)。设计中取v=3m/s,D0=1.8m,则~55~ 60×3n0==31.84r/min3.14×1.8(9)搅拌器角速度2v=D0式中v—搅拌器外缘速度(m/s);D0—搅拌器直径(m);2×3ω==3.33rads1.8(10)轴功率34cwZBR0N2=408g式中c—阻力系数,0.2至0.5;3ρ—水的密度(kg/m);—搅拌器角速度(rad/s);Z—搅拌器页数;B—搅拌器层数;R0—搅拌器半径;2g—重力加速度(m/s)。设计中取c=0.4,Z=4,B=1层,R0=0.9m,则3434cρωZBR0.4×1000×3.33×4×1×0.90N2===9.74kw408g408×9.81(11)轴功率2GN1=102式中μ—水的动力黏度(Pa·s);3W—混凝池容积(m);-1-1G—速度梯度(s),一般采用500至1000s。-1设计中G=720s242G1.091018.52720N1===9.7kw102102N1<N2,满足要求。~56~ (12)电动机功率N2N3=n式中∑ηn—传动机械效率。设计中取∑ηn=0.85,则N29.74N3===11.46kw0.85n计算简图如下图示图6-1机械混合池计算简图机械混合池这在室内,与储药间等合建,设计尺寸为L××=12×5×66.2V型滤池设计计算1.设计参数选取设计水量Q=104025.6m3/d,虑速v=10m/h;过滤周期48h滤层水头损失:冲洗前的滤层水头损失采用1.8m第一步气冲冲洗强度q=15L/(s·m²),气冲时间t=3min气1气第二步气、水同时反冲q=15L/(s·m²),q=4L/(s·m²)气2水1~57~ t=4min气,水第三步水冲强度q=5L/(s.m²),t=5min水2水冲洗时间t=12min;冲洗周期T=48h反冲横扫强度1.8L/(s·m²),滤池采用单层加厚均质石英砂滤料,粒径0.96~1.35mm,不均匀系数1.2~1.6。2.设计计算(1)池体设计1滤池工作时间’2424T=24-t=24-0.2×=23.9hT48式中未考虑排放初滤水。2滤池总面积Q104025.6F===435.25m²vT1023.93滤池的分格查《给水厂处理设施设计计算》表4-46,表4-47,为节省占地选双格V型滤2池,池底板用混凝土,单格宽B单=4.0m,长L单=14m,面积56m。2组共4座,22每座面积f=112m,总面积448m。4校核强制滤速"‘NV410v===13.33m/hN-141满足虑速7~20m/h的要求。5滤池高度的确定H=H+H+H+H+H+H+H1234567式中H—气水室高度,0.7~0.9m,取0.8m;1H—滤板厚度m,取0.13m;2H—滤料层厚度m,取1.2m;3H—滤层上水深m,取1.5m;4H—进水系统跌差m,取0.4m;5~58~ H—进水总渠超高m,取0.3m;6H—滤板承托层厚度m,取0.1m;7H=0.8+0.13+1.2+1.5+0.4+0.3+0.1=4.3m6水封井设计滤层采用单层均质滤料,粒径0.96~1.35mm,不均匀系数K为1.2~1.6,均质80滤料清洁滤料层的水头损失按下式计算2(1-m)102H=180()lv清30gmd00式中H—水流通过滤料层的水头损失,㎝;清—水的运动黏度,㎝²/s,20℃时为0.0101㎝²/s;g—重力加速度,981㎝²/s;m—滤料孔隙率,取0.5;0d—与滤料体积相同的球体直径,㎝,根据厂家提供数据为0.1㎝;0l—滤层厚度,120㎝;0v—滤速,cm/s,v=10m/h=0.28m/s;—滤料颗粒球度系数,天然沙粒0.75~0.80,取0.8;20.0101(1-0.5)12H=180××()1200.28=19.45㎝清39810.50.80.1根据经验,滤速为8~l2m/h时,清洁滤料层的水头损失一般为30w~50cm。计算值比经验值低,取经验值的低限30cm为清洁滤料层的过滤水头损失。正常过滤时,通过长柄滤头的水头损失为0.22m。忽略其他水头损失,则每次反冲洗后刚开始过滤时水头损失为H=0.3+0.22=0.52m开始为保证正常过滤时池内液面高出滤料层,水封井出水堰顶高与滤料层相同,设水封井平面尺寸2×2m,堰底板比滤池底板低0.3m,水封井出水堰总高为H=0.3+H+H+H+H=0.3+0.8+0.1+1.2+0.1=2.5m水封1237因为每座滤池过滤水量:~59~ Q=vf=10×112=1120m³/h=0.31m³/s单2所以水封井出水堰堰上水头由矩形堰的流量公式Q=1.84bh3计算得22Q0.31h=(单)3=()3=0.19m水封1.84b1.842.0则反冲洗完毕,清洁滤料层过滤时,滤池液面比滤料层高0.19+0.52=0.71m图6-2滤池设计平面图~60~ 图6-3滤池设计剖面图(2)反冲洗管渠系统本设计采用长柄滤头配水配气系统,冲洗水采用冲洗水泵供应,为适应不同冲洗阶段对冲洗水量的要求,冲洗水泵采用两用一备的组合,水泵宜于滤池合建,且冲洗水泵的安装应符合泵房的有关设计规定。反冲洗用水流量Q反水的计算反冲洗用水流量按水洗强度最大时计算。单独水洗时反洗强度最大为5L/(m².s)33Q=qf=5×112=560L/s=0.56m/s=2016m/h反水水V型滤池反冲洗时,表面扫洗同时进行,其流量:Q=qf=0.0018×112=0.202m³/s表水表水1反冲洗配水系统的断面计算配水干管进口流速应为1.5m/s左右,配水干管的截面积A=Q/V=0.56/1.5=0.37m²水干反水水干反冲洗配水干管采用钢管,DN700,流速1.46m/s,反冲洗水由反冲洗配水干管输送至气水分配渠,由气水分配渠底两侧的布水方孔配水到滤池底部布水区,反冲洗水通过布水方孔的流速按反冲洗配水支管的流速取值。配水支管流速为1.0~1.5m/s,取V=1.0m/s,则配水支管的截面积水支A=Q/V=0.56/1.0=0.56m²方孔反水水支~61~ 此为配水方孔总面积,沿渠长方向两侧各均匀布置28个配水方孔,共计56个,孔中心间距0.5m,每个孔口面积A=0.56/56=0.0100m²小每个孔口尺寸取0.1m×0.1m。2反冲洗用气量Q气的计算反冲洗用气流量按气冲强度最大时的空气流量计算,这是气冲强度为15L/(m².s)3Q=qf=15×112=1680L/s=1.68m/s反气气3配气系统的断面计算配气干管进口流速应为5m/s左右,则配气干管的截面积Q反气1.68A===0.336m²气干V5气干反冲洗配气干管采用钢管,DN700,流速4.37m/s,反冲洗用空气由反冲洗配气干管输送至气水分配渠,尤其水分配渠两侧的布气小孔配气到滤池底部布水区。布气小孔紧贴滤板下缘,间距与布水方孔相同共计56个,反冲洗用空气通过布气小孔的流速按反冲洗配气支管的流速取值。反冲洗配气支管流速为10m/s左右,配气支管的截面积A=Q/V=1.68/10=0.168m²气支反气气支每个布气小孔面积:A=A/20=0.168/56=0.003m²,孔口直径气孔气支140.003d=()20.062m,取60mm气孔3.14每孔配气量:Q=Q/56=1.68/56=0.03m³/s=108m³/h气孔反气4气水分配渠的断面设计对气水分配渠断面面积要求的最不利条件发生在气水同时反冲洗时,亦即气水同时反冲洗时要求气水分配渠断面面积最大。因此气水分配渠的断面设计按气水同时反冲洗的情~62~ 况设计。气水同时反冲洗时反冲洗水的流量Q=qf=4×112=448L/s0.45m³/s反气水水气水同时反冲洗时反冲洗空气的流量Q=qf=15×112=1680L/s=1.68m³/s反气气气水分配渠的气水流速均按相应的配水配气干管流速取值,则气水分配干渠的断面积:A=Q/V+Q/V气水反气水水干反气气干2=0.45/1.5+1.68/5=0.3+0.336=0.64m(3)滤池管渠的布置1反冲洗管渠a.气水分配渠气水分配渠起端宽取0.6m,高取1.5m,末端宽取0.6m,高取1.0m,则起端截面积为0.9m²,末端截面积0.6m²,两侧沿程各布置28个配水小孔和28个配气小孔,孔间距0.5m,2共56个配水小孔和56个配气小孔,气水分配渠末端所需最小截面积为0.64/56=0.0114m﹤末端截面积0.6m²,满足要求。b.排水集水槽排水集水槽顶端高出滤料层顶面0.5m,则排水集水槽起端槽高H=H+H+H+H+0.5-1.5起1237=0.8+0.1+1.2+0.1+0.5-1.5=1.2m,式中,H1,H2,H3,H7同前,1.5为气水分配渠起端高度。排水集水槽末端槽高H=H+H+H+H+0.5-1.0末1237=0.8+0.1+1.2+0.1+0.5-1.0=1.7m其中1.0m为气水分配渠末端高度H末-H起1.71.2坡底i===0.038﹥0.02,符合设计要求。L13c.排水集水槽排水能力校核~63~ 由矩形断面暗沟(非满流,n=0.013)计算公式校核集水槽排水能力。设集水槽超高0.3m,则槽内水位高h=1.2-0.3=0.9m,槽宽b=0.6m湿周排集排集X=b+2h=0.6+2×0.9=2.4m2水流断面A=bh=0.6×0.9=0.54m排集排集排集水力半径R=A/X=0.54/2.4=0.225m排集2121R3i20.22530.03820.195水流速度v===0.370×=5.55m/sn0.0130.013过流能力Q=Av=0.543×5.55=3.00m³/s排集排集实际过水量Q=Q+Q=0.56+0.202=0.762m³/s﹤3.00m³/s,符合设计要求。反反水表水2进水管渠a.进水管渠:4座滤池分成独立的两组,每组进水总渠过水流量按强制过滤流量设计,流速要求0.8~1.2m/s,采用0.8m/s则过滤流量3Q=(104025.6/3)×2=69350.4m/d=0.803m³/s强过水断面Q强0.8032A=0.803m,进水总渠宽1m,水面高0.8m。v1b.单池进水孔:每座滤池在进水侧壁开三个进水孔,进水总渠的浑水通过这三个进水孔进入滤池,两侧进水孔孔口在反冲洗时关闭,中间进水孔孔口设手动调节闸板,在反冲洗时不关闭,供给反洗表扫用水。调节闸板的开启度,使其在反冲洗时的进水量等于表面扫洗用水量,孔口面积按孔口淹没出流公式=0.82计算,其总面积按滤池强制过滤水量计,孔口两侧水位差取0.1m,则孔口总面积Q强12=0.803=0.71m孔0.82gh0.8×2×9.8×0.1~64~ 中间孔面积按表面扫洗水量设计:Q表水0.2022A=A×=0.71×=0.18m中孔孔Q0.803强孔口宽B=0.5m,孔口高H=0.4m中孔中孔两个侧孔口设阀门,采用橡胶囊充气阀,每个侧孔面积A孔-A中孔0.71-0.182A==0.256m侧22孔口宽B=0.5m,孔口高H=0.6m侧孔侧孔c.宽顶堰:为保证进水稳定性,进水总渠引来的待滤水经过宽顶堰进入每座滤池内的配水渠,在经配水渠分配到两侧的V型槽。宽顶堰堰宽取b=6m,宽顶堰与进水总渠平行布置,与宽顶2/3进水总渠侧壁相距0.5m。堰上水头由矩形堰的流量公式Q=1.84bh,计算得22Q强30.8033≈0.18mh=()=()宽顶1.84b1.846宽顶d.每座滤池的配水渠进入每座滤池的浑水经过宽顶堰溢流至配水渠,由配水渠两侧的进水孔进入滤池内的V型槽。滤池配水渠宽取b配渠=0.6m,渠高为1m,渠总长等于滤池总宽,则渠长L配渠=8m,当渠内水深h=0.6m时,末端流速(进来的待滤水由分配渠中段向渠两侧进水孔流去,每配渠侧流量Q/2)强Q强0.803v==1.12m/s,配渠2bh20.60.6配渠配渠满足滤池进水管渠流速0.8~1.2m/s的要求。e.配水渠过水能力校核:配水渠水力半径~65~ b配渠h配渠0.60.6R==0.2m配渠2h+b20.60.6配渠配渠配水渠水力坡降2/32232i(nv/R)=(0.013×1.12/0.2=0.0018配渠配渠配渠符合t<0.002的要求。配渠渠内水面降落hiL/2=0.0018×4=0.007m配渠配渠配渠因为配水渠最高水位h=h+h=0.6+0.007=0.607m﹤渠高1m配渠配渠满足配水渠的过水能力要求。3V型槽的设计V型槽槽底射表扫水出水孔,直径取dv孔=0.025m,间隔0.15m,每槽共计94个,则单侧V型槽表扫水出水孔总面积为:23.140.0252A=×94≈0.05m表孔4表扫水出水孔低于排水集水槽堰顶0.15m,即V型槽槽底的高度低于集水槽堰顶0.15m。据潜孔出流公式Q=0.82,其中Q应为单个滤池的表扫水流量,则表面扫洗时V型槽内水位高出滤池反冲洗时液面Q(表水)20.202220.64A()表孔=20.80.05=0.33mh=v液2g29.8反冲洗时排水集水槽的堰上水头由矩形堰的流量公式Q=2/31.84bh求得,其中b为集水槽长.b=L排槽=14m,Q为单格反冲洗流量3Q=Q/2=0.762/2=0.381m/s反单反22h=Q反单3=0.3813=0.06m()()排槽1.84b1.8414~66~ V型槽倾角45°,垂直高度1m,壁厚0.05m。反冲洗时V型槽顶高出滤池内液面高度为H=1-0.15-h-h=1-0.15-0.06-0.33=0.46m排槽v液(4)冲洗水的供给1冲洗水的供给,选用冲洗水箱供水的计算a.冲洗水箱到滤池配水系统的管路水头损失∆h1反冲洗配水干管采用钢管,DN700,流速1.46m/s,1000i=1.10。初步设计布置管长为80,则反冲洗总管的严惩水头损失为∆=t=0.0011×80=0.088反冲洗配水干管主要配件及局部阻力系数如下表冲洗管配件及局部阻力系数表6-1配件名称数量(个)局部阻力系数o90弯头66×0.6=3.6DN700闸阀33×0.05=0.15等径三通22×1.5=3水箱出口10.5∑127.25∆=2/2=7.25×1.462/(2×9.8=0.79则冲洗水塔到滤池配水系统的管路水头损失为∆1=∆∆t=0.088+0.79=0.88b.配水系统水头损失为∆h2(a)气水分配干渠内的水头损失△h反水气水分配干渠的水头损失按最不利条件,即气水同时反冲洗时计算。此时渠上部是空气,下部是反冲洗水,按矩形暗管(非满n=0.013)近似计算。3由(2)计算知,气水同时冲洗时Q反气水=0.45m/s。则气水分配渠内水面标高为~67~ 反气水0.45===0.5反水1.5×0.6水干气水水力半径气水反水=反水(2+)气水气水0.5=0.6×=0.212×0.5+0.4水力坡降20.013×1.52渠t=()=()≈0.003反渠230.2123渠内水头损失∆=t=0.003×14=0.043反水反水反水(b)气水分配干渠底部配水方孔水头损失△f方孔气水分配干渠底部配水方孔水头损失按孔口淹没出流公式Q=0.82计算。其中Q为Q反气水,A为配水方孔总面积。由反冲洗配水系统的断面计算部分内容可知,配水方孔的2实际总面积为A方孔=0.56m则反气水2()0.8方孔∆=方孔20.452()0.8×0.56==0.0512×9.8(c)查手册,反洗水经过滤头的水头损失∆≤0.22滤头(d)气水同时冲洗时增加的水头∆增气水同时反冲时气水比n=15/4=3.75,长柄滤头配气系统的滤帽缝隙总面积与滤池过滤总面积之比约为1.250%,则长柄滤头中的水流速度反气水0.45===0.32/柄1.25%1.25%×112通过滤头时增加的水头损失∆=9810(0.01−0.01+0.122增~68~ =9810×3.75×(0.01-0.01×0.32+0.12×0.322)=647洠≈0.065则滤池配水系统的水头损失△h2∆2=∆反水+∆方孔+∆滤+∆增=0.043+0.051+0.22+0.065=0.4c.滤料层水头损失:r1h(1)(1m)H=(2.651)(10.41)1.2=1.17m303r3式中:r—滤料石英砂的密度,r=2.65t/m;113r—水的密度,r=1t/m;m0—滤料膨胀前的空隙率,m0=0.41;H3—滤料层膨胀前的厚度,H3=1.2m。d.安全富余水头取h4=1.5m,冲洗水箱底应高于洗砂排水槽顶的高度H水塔h1h2h3h40.88+0.4+1.17+1.5=3.95m取4.0m(5)冲洗水塔容积按一座滤池冲洗水量的1.5倍计算:3V1.5(QtQt)1.5(0.565600.45460)=414m反水水反气水气水2选用冲洗水泵供水的计算a.冲洗水泵到滤池配水系统的管路水头损失△h1反洗配水干管用钢管,DN700,管内流速1.46m/s,1000i=1.10布置管长总计80m。b.清水池最低水位与排水槽堰顶的高差H0=5m。c.其他水头损失参照水箱水头损失计算,则反冲洗水泵的最小扬程为H水泵H0h1h2h3h40.88+0.4+1.17+1.5+5=9m选四台250S14单级双吸离心泵,三用一备。扬程11米时,每3台泵的流量为576m/h。(5)反洗空气的供给1长柄滤头的气压损失△p滤头~69~ 3气水同时反冲洗时反冲洗用空气流量Q反气=1.26m/s。长柄滤头采取网状布置,2约55个/m,则每座滤池共计安装长柄滤头n=55×112=6160个每个滤头通气量1.26×1000/6160=0.20L/S根据厂家提供数据,在该气体流量下的压力损失最大为∆=26000洠=2.6洠滤头图6-4滤头设计简图2气水分配渠配气小孔的气压损失∆气孔压力损失按孔口出流下列公式计算∆=36002式中—孔口流量系数,=0.62—孔口面积,m;∆p—压力损失,mm水柱;~70~ 2g—重力加速度,g=9.8m/s;3Q—气体流量,m/h;—水的相对密度,=1。则气水分配渠配气小孔的气压损失∆=2/(2×3600222气孔气孔气孔代入数据得2222∆=(0.03×1)/(2×3600×0.6×0.062=0.43kpa气孔3配气管道的总压力损失△P管a.配气管道的沿程压力损失△P1。3反冲洗空气流量1.26m/s,配气干管用DN700钢管,流速4.37m/s,满足配气于管(渠)流速为5m/s左右的条件。反冲洗空气管总长60m,气水分配渠内的压力损失忽略不计。反冲洗管道内的空气气压计算公式P气压=(1.5+H气压)×9.8式中p气压—空气压力,kPa;H气压—长柄滤头距反冲洗水面的高度,m,H气压=1.5m。P气压=(1.5+H气压)×9.8=(1.5+1.5)×9.8=29.4kpa则反冲洗时空气管内的气体压力p空气=(1.5+H气压)×9.8=(1.5+1.5)×9.8=29.4kPao空气温度按30C考虑。查表,空气管道的摩阻为9.8kPa/1OOOm。则配气管道沿程压力损失△p1=9.8×60/1000≈0.59(kPa)b.配气管道的局部压力损失△P2主要配件及长度换算系数见表6-2~71~ 反冲洗空气管配件及长度换算系数表6-2配件名称数量/个长度换算系数Ko90弯头50.7×5=3.5闸阀30.25×3=0.75等径三通21.33×2=2.66∑6.911.2当量长度换算公式:l0=55.5KD式中l0—管道当量长度,m;D—管径,m;K—长度换算系数。1.2空气管配件换算长度l0=55.5×6.91×0.5≈166.9则局部压力损失∆=166.9×9.8/1000=1.64kPa管配气管道的总压力损失∆管=∆1+∆2=0.43+1.64=2.07kpa4水冲洗室中的冲洗水水压p水压p水压=(H水泵-∆1-∆反水-∆小孔)×9.81=40-8.8-0.43-2.2=28.57kpa按最不利时计算鼓风机出口的静压力p出口=p管+p气+p水压+p高式中p管—输气管道的压力总损失,kPa;P气—配气系统的压力损失,kPa,设计中p气=△P滤头+△p气孔;p水压—气水冲洗室中的冲洗水水压,kPa;p富—富余压力,本设计取5.0kpa。鼓风机或储气罐调压阀出口的静压为p出口=p管+p气+p水压+p富~72~ =2.07+0.43+2.6+28.57+5.0=38.67kpa(6)反冲洗系统设备的选型33鼓风机的选型通气量为Q反气=1.68m/s=100.8m/min,出口的压力为38.67kpa。选用3RE-200罗茨鼓风机,2用一备,通气量为57.2m/min,出口压力为45kpa。选四台250S14单级双吸离心泵,三用一备。扬程11米时,每3台泵的流量为576m/h。3.反冲洗泵房的设计反冲洗系统的水泵和鼓风机均布置在反冲洗泵房中,设计尺寸为L××=10×8×66.3紫外线消毒渠的设计计算1.灯管的选型根据《城镇污水处理厂污染物排放标准》GB18918-2002中6.13.7紫外线照射渠不宜少于2条。当采用一条时,宜设置超越渠。本次设计设置1组2格紫外线消毒渠,最大日最大时设计流量为Q=104025.6m3/d,每格流量为Q31=52012.8m/d,平均日平均时设计流量=68742.23/,单格设计流s量为=33921.13/。查阅相关资料,紫外线消毒灯1管选用加拿大TROJAN公司生产的UV3000PLUS型紫外线消毒设备,每3800m3/d污水需要14根灯管,每根灯管250W。2.灯管数按平均日平均时流量计算33921.1n=×14=125根3800按最大日最大时流量计算52102.8n=×14=192根3800拟选用8个灯管一个模块,则模块数为15.6(个)107.733符合要求。3.贮泥池高度h=h1+h2+h3式中h—污泥贮池高度(m);h1—超高(m),一般采用0.3m;h2—污泥贮池有效深度(m);h3—污泥斗高m。h=0.3=3.46=6.76m设计中取h=6.80m。4.管道部分每个贮泥池中设DN=150mm的吸泥管一根,2个贮泥池互相连通,连通管DN=200mm,共设有3根进泥管,1根来自初沉池,管径DN200,另2根来自污泥浓缩池,管径DN=150mm。~82~ 贮泥池示意图见图贮泥池示意图7.3脱水车间的设计计算1.脱水污泥量计算本设计布置一座脱水车间,设计进泥量为Q=574.56m3/d,设计进泥含水率P1=95%,设计出泥含水率P2=75%。(1)脱水后污泥量:100P1QQ0100P2MQ1P21000式中Q—脱水后污泥量(m3/d);Q30—脱水前污泥量(m/d);P1—脱水前污泥含水率(%);P2—脱水后污泥含水率(%);M—脱水后干污泥含量(kg/d)。设计中取Q=574.56m3/d,P1=95%,P2=75%~83~ 100-953Q=574.56×=114.91m/d100-75()3M=114.91×1-75%×1000=28727.5m/d污泥脱水后形成泥饼用小车运走,分离液返回处理系统前端进行处理。2.脱水机的选择机械脱水方法有真空吸滤法、压滤法和离心法。目前常用的脱水机械主要有:真空转鼓过滤机、板框压滤机、带式压滤机、离心机。具体比较见设计说明书。设计中选用国内某公司的QTB-750型带式压滤机,其主要技术指标为,于污泥产量4.5~7.5m3/h,设计中取6m3/h,泥饼含水率约75%,絮凝剂聚丙烯酞胺投量按干污泥量的2.0%。设计中共采用3台带式压滤机,其中2用1备。工作周期定为12小时。所以每台处理的泥量为:m=6×12×2=144>114.91m3/d,可以满足要求。3.脱泥机房的设计脱水机房中有溶药系统,即溶药罐、溶液罐和加药泵等,以及空气净化装置。脱水后的污泥经螺旋退运器推运至脱水机房旁的堆泥场。为了管理人员和检修人员的操作方便,脱水机房的设计尺寸为××=16×8×6~84~ 第八章污水厂的高程计算8.1污水的高程计算8.1.1构筑物的水头损失前面部分构筑物水头损失已经算出,为算出部分按照《给排水设计手册(第5册城镇排水)》表10-2估算。各构筑物水头损失估算范围如下表。处理构筑物水头损失估算值表8-1构筑物名称水头损失(m)构筑物名称水头损失(m)格栅0.10~0.25鼓风曝气池0.25~0.40沉砂池0.1~0.25加速曝气池0.25~0.40除油池0.10~0.25混合池0.10~0.30平流式沉淀池0.20~0.40接触池0.10~0.30竖流式沉淀池0.40~0.50辐射式沉淀池0.50~0.60本设计具体计算值估值值如下表构筑物水头损失表8-2构筑物名称水头损失(m)构筑物名称水头损失(m)粗格栅0.1生化池0.6细格栅0.25二沉池配水井0.3沉砂池0.194二沉池0.5计量槽0.2机械混合池配水井0.3初沉池配水井0.3机械混合池2初沉池0.5滤池1.99生化池配水井0.2紫外线消毒池0.18.1.2管渠的水力计算管渠水力计算详见附表8.1.3污水处理厂的高程布置格栅前端市政污水进水管水面标高为313.94m,管内底标高为313.33m。排出口为嘉~85~ 陵江,改点历史最高水位为309.12m,常水位为306.15m,改点地面标高为313.00m。由上综合考虑,设计中以A2O工艺生化池为基准,确定池水面标高由此向两边推算其他构筑物高程,,计算结果见表构筑物及管渠水面设计标高计算表表8-3管渠及水面上游标高水面下游标构筑物水面标地面标高构筑物(m)高(m)高(m)(m)细格栅319.965319.715319.840314.200沉砂池319.715319.521319.618314.200沉砂池至流量槽319.521319.239314.200流量槽和配水井319.039318.757314.120配水井318.757318.257318.507314.097配水井至初沉池318.257318.088314.087初沉池318.088317.588317.838314.064初沉池至配水井317.588317.335314.052生化池配水井317.335317.153317.244314.037配水井至生化池317.153317.000314.030生化池317.000316.400316.700314.000生化池至配水井316.400316.132313.900配水井316.132315.832315.982313.800配水井至二沉池315.832315.800313.587二沉池315.800315.300315.550313.374二沉池至配水井315.300314.920313.161二沉池配水井314.920314.620314.770312.948配水井至机械混合配水井314.620314.036312.735混合池配水井314.036313.736313.886312.635配水井至机械混合池313.736313.378312.335混合池313.378313.158313.268312.035混合池至滤池313.158312.945311.735滤池312.945311.045311.995311.435滤池至消毒池311.045310.551311.135消毒池310.551310.451310.501310.835消毒池至流量槽310.451310.200310.535流量槽310.200310.541310.371310.235流量槽至出水口310.541310.438309.935计算结果出水口水面标高309.935m,高于历史最高洪水位306.12m,满足排放要求。污水高程布置具体见大图污水厂-03。~86~ 8.2污泥的高程计算1.污泥管道沿程损失=2.49((1.85䁕1.17管道局部水头损失2t=2式中Cn—污泥浓度系数;C—污泥管径(m);L—管道长度(m);—管内流速(m/s);—局部阻力系数;查计算表可知污泥含水率7%时,污泥浓度系数价,=71,污泥含水率95o时,污泥浓度系数CH=53。各连接管道的水头损失见下表连接管道水头损失表8-4管渠及流量管渠设计参数水头损失构筑物(L/s)管径流速管长沿程局部合计名称(mm)(m/s)(m)水头水头初沉池至贮泥池24.62000.782200.850.161.01浓缩池至贮泥池10.31500.6120.070.30.37贮泥池至脱水机房101500.6100.070.030.12.污泥处理构筑物的水头损失当污泥以重力流排出池体时,污泥处理构筑物的水头损失以各构筑物的出流水头计算,初沉池、浓缩池、消化池一般取1.5。,二几沉池一般取1.2m。3.污泥高程布置二沉池、初沉池由上面已经确定,污泥高程推算顺序如下:9.1由初沉池液面高程推算贮泥池液面高程,再由贮泥池液面高程反推浓缩池液面高程;9.2确定二沉池至浓缩池的污泥泵提升高度;计算结果见下表,高程布置图见大图。~87~ 污泥处理构筑物及管渠水面标高计算表表9-5管渠及构筑物名称游泥标高下游泥面标高构筑物泥面标高地面标高初沉池318.59318.59314.064初沉池至贮泥池318.59316.08314.064贮泥池316.08314.58315.33314.064贮泥池至脱水机房314.58314.48314.064贮泥池至污泥浓缩池316.08316.45314.064污泥浓缩池317.95316.45317.2314.064~88~ 第九章污水总泵站的设计9.1水泵流量及扬程的初步确定由前面的计算知道,污水泵站的设计流量为Q=1.204m3/s,细格栅前端水面标高为319.96m,粗格栅前端市政管道管径为1200mm,水面标高为313.13m,过格栅前挡板时水头损失为0.1,过栅水头损失为0.1m,过格栅后挡板时水头损失为0.1m,则栅后水面表高为312.83m,则泵房集水池与细格栅前端水面高差为:319.96−312.83=7.13设计泵站的集水池有效水深为2.0m。则水泵的静扬程为9.13mm。估计泵站内的沿程损失和局部损失共计1.0m,考虑安全水头为0.5m,则水泵的扬程为10.63m。9.2初步选泵根据流量和扬程初步选择上海清泉泵业有限公司生产的WQ350-1500-15-90型号的潜水泵,3用1备。设计参数如下表所示。WQ400-1500-15-90型号的潜污泵设计参数表9-1流量扬程转速功率效率ABCDH自动耦合器1500159909082.1600165013657802000GAK-400安装尺寸如下图所示图9-1污水泵的安装尺寸示意图~89~ 9.3吸、压水管路实际水头损失的计算及水泵扬程的核算(1)管径及流速的确定3污水泵采用3用1备,则,每台泵流量为Q=0.401m/s,压水管DN=400mm的铸铁管,则压水管内流速为:4×4×0.401==(=2.04/压×D2×0.421000i=35.90;水泵的进出口直径分别为DN=700mm,DN=200mm,则水泵进出口流速为:=1.04/=3.19/进口出口(2)压水管路损失压水管上附件有D400×500的渐扩管一个,=0.17;D500的截止阀一个,=4.5;D50012的闸阀一个,ξ3=0.08;D500的90º弯头1个,4=0.58;则压水管路局部水头损失为:∑2t===1.13局部2×因水泵房集水池最低水位和细格栅水面标高相差约7m,可估计压水管长为10m,则35.90=t=×10=0.359沿程1000则压水管总水头损失1=1.13+0.36=1.49进水口的水头损失进水口出局部阻力系数为4=0.5,则局部水头损失为∑20.5×1.042t2===0.032×2×9.8泵站内总水头损失Σh=h1+h2=1.49+0.03=1.52m水泵扬程校正=+∑+1.0=9.13+1.52+1=11.65<15.00静泵任然在高效段内工作,满足要求,故选泵合适。~90~ 9.4集水井集水井设有污泥斗,池底做成0.01的坡度,坡向污泥井。从平台到池底设向下的扶梯,台上有吊泥用的梁钩滑车。集水井容积计算集水井容积按最大一台泵5min的出水量计算,有效水深取2.0m。V=5×60×0.472=141.67m3则集水井面积F为F=V/h=141.67/2m2=70.38m2集水井设置成两格,没两台一格,以便检修。9.3污水泵站的布置水泵自耦合基础厂L=888mm,宽B=800mm,高2303mm,四台泵并列布置,粗格栅间末端逐渐向泵站集水池倾斜。根据《室外排水设计规范(GB50014-2006)》要求,各泵组基础间的净距不宜小于1.0m;组突出部分与墙壁的净距不宜小于1.2m;主要通道宽度不宜小于1.5m。则本设取各台泵之间轴距1800,则基础间距为1.0m。距墙1.40,则总宽度为9m。泵房的长度为70.38L==7.82m,取8m。泵房99.5泵房高度的确定地下部分本泵安装最低水位距池底0.5m,有效水深为2.0m,该处的地面标高为314.35,考虑0.6m的池底基础壁厚,则泵站的埋深为4.62~91~ 第十章经济分析估算指标采用《城市基础设施工程投资概算指标》的通知中审查批准的由原城乡建设环境保护部,城市建设管理局组织制订的《城市基础设施工程投资估算指标》(排水工程)。项目总投资=第一部分费用+第二部分费用+第三部分费用第一部分费用:第一部分费用包括建筑工程费;设备、器材、工具等购置费;安装工程费。可查有关排水工程投资估算、概算指标确定。3污水厂的日处理水量:68742.2m/d计算各单项构筑物工程造价见下表单项构筑物工程造价表序号名称建设单价处理量投资计算(万元)1总平面8067842549.92污水泵房600019661179.63沉砂池8.886784260.24374初沉池57.3667842389.14175生化池137.5267842932.96326二沉池137.5267842932.96327污泥泵房61.1267842414.65038鼓风机房43.6867842296.33399污泥浓缩池17.9667842121.844210储泥池5.646784238.2628911综合楼及控制室20.2467842137.312212脱水机房6.166784241.7906713机修间16.6467842112.889114仓库17.8967842121.369315车库10.46784270.55568~92~ 16滤池鼓风机房43.667842295.791117滤池2067842135.68418滤池放冲洗水泵3067842203.52619变电所及配电间24.167842163.4992合计6198.32第二部分费用:第二部分费用包括建设单位管理费、征地拆迁费、工程监理费、供电费、设计费、招投标管理费等。根据有关资料统计,按第一部分费用的50%计。6198.32×50%=3099.16万元第三部分费用:第三部分费用包括工程预备费、价格因素预备费、建设期贷款利息、铺底流动资金、工程预备费按第一部分费用的10%计,则6198.30×10%=619.8万元价格因素预备费按第一部分费用的5%计,则6198.32×5%=309.96万元贷款期利息按贷款、铺底流动资金按20%计,则6198.32×20%=1239.66万元第三部分费用合计:619.8+309.96+1239.66=2169.42万元(4)工程总投资合计:项目总投资=第一部分费用+第二部分费用+第三部分费用6198.32+3099.16+2169.42=11466.74万元运营成本费=电费+工资福利费+检修维护费+其它费用1.电费(1)格栅粗细格栅共4个,同时有2台工作,N=1.5kw,全天工作。E1=1.5×2×24=72KW/s(2)总泵站~93~ 四台泵,WQ400-1500-10-75型号的潜污泵,3用1备。轴功率N90kW,全天工作。E2=3×90×24=6480kW·h/d(3)辐流沉淀池刮吸泥机4架,N=2.0kW,全天工作。E3=4×2.0×24=192.0kW·h/d(4)鼓风机房4台罗茨鼓风机,1台备用,N=146kW,全天工作。E4=3×145×24=511.58kW·h/d(5)压滤机采用3台压滤机,2用1备,N=2.5kW,工作周期为16小时。E5=2×2.5×24=120kW·h/d(6)污泥泵房4台潜污泵,工作周期24小时,N=50kW。E=50×4×24=48006(7)反冲洗系统水泵功率为N=85KW,共三台,冲洗周期48h,则每天有两台冲洗,冲洗时间为12min。E7=2×0.2×85=34kW·h/d同理鼓风机的电耗量为E7=0.2×2×145=58W·h/d(7)总电费E总=E1+E2+E3+E4+E5+E6+E7×0.5×365=2225547.35=222.55元2.工资福利费污水厂实行全天工作制,3个班次工20名工人,每人每月的工资为3000元。20×12×3000=720000元3.折旧提成费~94~ E8=W0P=6198.32×6.5%=402.89(万元)4.检修维护费E9=6198.32×1%=61.98(万元)5.其它费用包括行政管理费、辅助材料费E10=E总+E8+E9×10%=68.75(万元)6.年经营费用E=E总+E8+E9+E10=687.427.污水处理成本核算E6874200ε===0.30元/吨365Q365×68742~95~ 附表各街区的水量计算表附表1-1编街区街区人生活污水额区域污水流量区域流量设计平均流号面积数(L/cap·d)(L/d)(m3/d)量(L/s)143.6376502501912425.181912.43531.23212.562203250550705.25550.71152.97325.5544802501120009.661120.01311.11415.822773250693331.41693.33192.59520.243549250887333.04887.33246.4863.92687250171847.41171.8547.7475.63987250246626.96246.6368.51818.003156250789095.67789.10219.1997.041235250308630.83308.6385.73102.0736225090576.4290.5825.16111.6228525071175.8071.1819.77124.55797250199264.68199.2655.35136.161080250270024.54270.0275.011442.9775332501883320.091883.32523.14151.9333925084653.5184.6523.51164.89857250214296.86214.3059.53172.31405250101317.39101.3228.14182.69472250117886.16117.8932.75196.991226250306403.14306.4085.11204.73830250207467.85207.4757.63211.8532425081034.8881.0322.51222.83496250123885.75123.8934.41234.87854250213539.07213.5459.32241.0418225045430.3745.4312.62252.2639625098876.5698.8827.47263.28575250143685.70143.6939.91274.59805250201250.64201.2555.90283.76658250164622.37164.6245.73299.861729250432333.68432.33120.09302.82495250123675.96123.6834.35315.01879250219741.84219.7461.04321.1620425050933.3250.9314.15331.4525325063340.9463.3417.59342.0435725089224.1289.2224.783526.4546382501159420.271159.42322.0696 362.2138725096851.2696.8526.90370.9717025042594.1342.5911.83383.59630250157536.67157.5443.76396.791190250297556.25297.5682.65404.58802250200613.67200.6155.73413.64639250159631.20159.6344.34421.2822425055902.1055.9015.53431.8231925079757.8679.7622.15445.61983250245865.26245.8768.304515.292680250670041.56670.04186.12469.721703250425854.25425.85118.29472.98522250130497.29130.5036.254811.532022250505443.67505.44140.40494.84849250212344.76212.3458.985051.4290162502253987.182253.99626.115159.99105172502629266.092629.27730.355244.0377192501929741.451929.74536.04532.71475250118663.80118.6632.96548.371468250367053.01367.05101.96556.341112250278108.07278.1177.25566.081067250266646.77266.6574.075781.71143262503581381.863581.38994.83587.371293250323228.31323.2389.795939.2768852501721253.121721.25478.136019.093347250836780.13836.78232.44610.6812025029886.6729.898.30623.09542250135607.14135.6137.67636.171082250270444.08270.4475.126415.932792250698069.02698.07193.916515.002630250657546.64657.55182.656641.8673392501834861.701834.86509.686722.793995250998823.30998.82277.456813.112299250574650.70574.65159.63692.42424250106025.13106.0329.45702.81492250123099.37123.1034.197112.532197250549333.00549.33152.597228.7550412501260246.741260.25350.077325.0243862501096472.711096.47304.587460.18105512502637634.972637.63732.687563.32111022502775508.832775.51770.977625.4444612501115136.091115.14309.767722.713982250995545.72995.55276.54785.841023250255758.95255.7671.0497 798.931566250391547.09391.55108.768013.802419250604736.32604.74167.98815.791014250253566.30253.5770.44825.04884250220922.32220.9261.37834.86852250212925.72212.9359.15842.35412250103100.88103.1028.64853.74655250163826.40163.8345.51868.131426250356388.90356.3999.00875.16905250226283.12226.2862.86887.491312250328078.99328.0891.13合计200000.0650000500000098 工厂生活用水量附表1-2生活污水淋浴用水合计工厂每班最大班职污水量标准最大班流时变化最大时最大秒最大班淋污水最大时最大秒最大时最大秒热车间和名称班数时速工人数(L/cap·班)量(m3)系数流量流量浴的职工量标流量流量(L)流量流量一般车间(h)(cap)Kh(m)(L)人数(cap)准(L)(m3)(m3)(L)污水量(L)羽绒386582516.452.55.141.432654010.602.9415.744.376.88服厂120354.23.51.840.51120607.202.009.042.51丝绸381202532.50.940.2640401.600.442.540.701.75厂50351.753.50.770.2150603.000.833.771.05化肥38220255.52.51.720.48150406.001.677.722.1419.97厂8603530.13.513.173.668506051.0014.1764.1717.82机械383602592.52.810.78180407.202.0010.012.7811.86厂4503515.753.56.891.914306025.807.1732.699.08炼油38300257.52.52.340.65150406.001.678.342.3231.20厂15003552.53.522.976.3813506081.0022.50103.9728.88机电38100252.52.50.780.2270402.800.783.580.997.69厂3603512.63.55.511.533106018.605.1724.116.70修理3850251.252.50.390.1130401.200.331.590.443.25厂150355.253.52.300.64130607.802.1710.102.80合计5298167.3567.5718.774125229.8063.83297.3782.6082.60*注*最大职工数和职工污水标准中上下栏分别代表一般车间和热车间的用水定额99 污水干管设计流量计算表附表1-3居住区生活污水量Q1集中流量管段街区街区人用水定额本段流量转输流量合计平均总变化生活污水设计本段转输设计流编号编号数(cap)(L/cap·d)q1(L/s)q2(L/s)流量(L/s)系数Kz流量Q1(L/s)(L/s)L/s)量L/s)55-5450、5119533250.0056.520.0056.521.7498.340.000.0098.3454-5352、498568250.0024.7956.5281.311.66134.980.000.00134.9853-49482022250.005.8587.1693.011.62150.680.000.00150.6852-5134356250.001.030.001.032.302.370.000.002.3751-4936387250.001.121.032.152.304.940.000.004.9449-47-0250.000.0095.1695.161.61153.210.000.00153.2148-4737170250.000.490.000.492.301.130.000.001.1347-4347521250.001.5195.6597.161.61156.433.800.00160.2345-4338630250.001.820.001.822.304.190.000.004.1944-43391190250.003.440.003.442.307.920.000.007.9243-40-0250.000.00102.43102.431.60163.880.003.80167.6841-4040802250.002.320.002.322.305.340.000.005.3442-40461703250.004.930.004.932.3011.330.000.0011.3340-3945、413319250.009.60109.68119.281.58188.460.003.80192.2639-38-0250.000.00119.28119.281.59189.660.003.80193.4662-5960~624009250.0011.600.0011.602.1024.360.000.0024.3661-6053475250.001.370.001.372.303.160.000.003.1660-5957、5415794250.0045.701.3747.071.7883.790.000.0083.7959-5858、598178250.0023.6658.6782.341.66136.680.000.00136.6858-57551112250.003.2282.3485.561.65141.170.000.00141.17~100~ 57-56561067250.003.0985.5688.641.64145.190.000.00145.1956-3844983250.002.8488.6491.491.63148.970.000.00148.9738-9643319250.000.92210.77211.691.50317.390.003.80321.1996-3742224250.000.65211.69212.341.50318.310.003.80322.1137-1826575250.001.66212.34214.001.50320.690.003.80324.4935-34354638250.0013.420.0013.422.0527.480.000.0027.4834-33-0250.000.0013.4213.422.0527.480.000.0027.4833-32-0250.000.0013.4213.422.0527.480.000.0027.4836-3214、157872250.0022.780.0022.781.9444.140.000.0044.1432-30-0250.000.0036.2036.201.8366.260.000.0066.2631-3032204250.000.590.000.592.301.360.000.001.3630-2933253250.000.7336.7937.521.8268.280.000.0068.2829-2616、311736250.005.0237.5242.541.7976.220.000.0076.2228-27131080250.003.130.003.132.307.190.000.007.1927-2617405250.001.173.134.302.309.880.000.009.8826-2430495250.001.4346.8448.271.7785.560.000.0085.5625-2418472250.001.370.001.372.303.140.000.003.1424-21291729250.005.0048.2153.211.7693.430.000.0093.4322-21191226250.003.550.003.552.308.160.000.008.1623-2128、271463250.004.230.004.232.309.740.000.009.7421-19-0250.000.0055.9955.991.7597.793.500.00101.2920-1922496250.001.440.001.442.303.300.000.003.3019-18-0250.000.0057.4257.421.74100.020.003.50103.5295-94802419250.007.000.007.002.2415.680.000.0015.68~101~ 94-92791566250.004.537.0011.532.1024.260.000.0024.2693-92781023250.002.960.002.962.306.810.000.006.8192-89-0250.000.0014.4914.492.0229.200.000.0029.2091-90811014250.002.930.002.932.306.750.000.006.7590-8982884250.002.562.935.492.2912.550.000.0012.5589-85-0250.000.0019.9819.981.9639.170.000.0039.1788-8784412250.001.190.001.192.302.740.000.002.7487-8585655250.001.901.193.092.307.100.000.007.1086-8583852250.002.470.002.472.305.670.000.005.6785-8487905250.002.6225.5428.151.8953.350.000.0053.3584-82-0250.000.0028.1528.151.8953.350.000.0053.3583-82881312250.003.800.003.802.308.730.000.008.7382-80861426250.004.1331.9536.081.8366.070.000.0066.0781-8071、702689250.007.780.007.782.2217.250.000.0017.2580-18-0250.000.0039.7339.731.8071.600.000.0071.6018—1023、251250250.003.62311.15314.771.46461.120.007.30468.4217-1612797250.002.310.002.312.305.300.000.005.3016-1411285250.000.822.313.132.307.210.000.007.2115-1453549250.0010.270.0010.272.1422.0044.270.0066.2714-1311、10647250.001.8713.4015.282.0030.520.9744.2775.7613—1220830250.002.4016.2518.651.9736.750.0045.2481.9912—1121324250.000.9418.6519.581.9638.450.0045.2483.6911—10-0250.000.0019.5819.581.9638.450.0045.2483.6910—924182250.000.53334.36334.881.46488.340.0052.54540.88~102~ 9—891235250.003.57334.88338.461.46493.150.0052.54545.698—583156250.009.13338.46347.591.45505.400.0052.54557.947—63、47253250.0020.990.0020.991.9540.970.000.0040.976—56、71674250.004.8420.9925.831.9149.429.950.0059.375—422203250.006.37373.42379.791.44548.140.0062.49610.634—317650250.0022.14379.79401.931.44577.134.2262.49643.843—2-0250.000.00401.93401.931.44577.13112.2266.71756.0679-78773982250.0011.520.0011.522.1024.250.000.0024.2578-77764461250.0012.9111.5224.431.9247.020.000.0047.0277-76-0250.000.0024.4324.431.9247.020.000.0047.0297-767410551250.0030.530.0030.531.8857.270.000.0057.2777-767511102250.0032.120.0032.121.8659.850.000.0059.8576-74-0250.000.0087.0887.081.64143.080.000.00143.0875-74734386250.0012.690.0012.692.0726.260.000.0026.2674-68-0250.000.00131.90131.901.57206.830.000.00206.8373-72725041250.0014.590.0014.592.0129.350.000.0029.3572-70-0250.000.0014.5914.592.0129.350.000.0029.3571-7069424250.001.230.001.232.302.820.000.002.8270-69682299250.006.6515.8122.471.9443.590.000.0043.5969-68673995250.0011.5622.4734.021.8562.870.000.0062.8768-66667339250.0021.24165.92187.161.51283.1438.130.00321.2767-66652630250.007.610.007.612.2216.910.000.0016.9166-63-0250.000.00173.53173.531.53264.8960.4838.13363.5065-63642792250.008.080.008.082.2117.830.000.0017.83~103~ 64-63631082250.003.130.003.132.307.200.000.007.2063—2-0250.000.00184.74184.741.52279.9318.4298.61396.962—1-0250.000.00579.52579.521.38802.400.00295.961098.36污水干管水力计算表附表1-4管段设计管段管管内充满度降落标高(m)埋设跌管段长度流量直径段流速h/dh(m)量地面水面管内底深度水编号L(m)q(l/s)D(mm)坡v(m/s)I*L(m)上端下端上端下端上端下端上端下端度I(‰)123.0045.06789101112131415181955-5448498.345500.80.600.650.360.387332.98332.65330.088329.700329.730329.3433.253.3154-53875134.986501.10.710.550.360.963332.65331.80329.600330.545329.243330.1883.413.5253-49309150.686502.61.000.50.330.803331.80330.54328.605329.412328.280329.0873.523.0652-511562.373003.00.600.50.150.468330.12330.33329.183329.712329.033329.5621.091.7651-492454.943003.00.600.50.150.735330.33330.54328.715329.655328.565329.5051.762.7149-47128153.216501.40.810.550.360.179330.54330.30327.838329.828327.480329.4713.063.0048-471201.133003.00.600.50.150.360331.24330.30328.160329.79328.010329.6403.232.6547-43265160.236502.10.960.50.330.557330.30329.73327.625328.8485327.300328.5243.002.9945-431814.193003.00.600.50.150.543330.87329.73327.783329.037327.633328.8873.242.6444-431347.923003.00.600.50.150.402329.34329.73327.642329.178327.492329.0281.852.6443-40226167.6865014.61.000.350.233.300329.73326.43326.968322.7079326.740322.4802.992.9941-401225.343003.00.600.50.150.366326.07326.43324.306325.914324.156325.7641.912.64~104~ 42-4028311.333004.10.630.30.091.160327.89326.43325.040325.0597324.950324.9702.942.6440-39191192.266504.01.050.550.360.764326.43324.16323.798323.1035323.440322.7462.991.391m39-38157193.466504.31.330.450.290.675324.16322.83322.063321.7974321.770321.5052.391.7462-5972024.363003.00.680.50.152.16326.77325.75327.642323.44327.492323.291.422.5661-60803.163003.00.600.50.150.24328.46328.05327.240326.04327.090325.8901.181.0160-5937383.7950010.61.530.450.233.9538328.05325.75324.181322.2012323.956321.9761.212.7659-58331136.686501.50.820.50.330.4965325.75324.94324.925325.6085324.600325.2842.912.6058-57283141.176501.20.750.550.360.3396324.94324.08323.798323.5279323.440323.1702.491.9757-5695145.196501.00.7160.60.390.095324.08323.36322.160322.475321.770322.0852.031.4156-38511148.976501.21.030.550.360.6132323.36322.83325.358324.8443325.000324.4871.661.7438-96180321.197001.81.070.70.490.324322.38322.03327.370327.516326.880327.0261.791.7696-37148322.117002.81.270.60.420.4144322.03321.27327.060325.0556326.640324.6361.761.4137-18319324.497001.91.070.70.490.6061321.27321.80323.277324.1239322.787323.6341.492.631m35-3423627.483003.70.780.50.150.8732331.47330.03322.950323.0568322.800322.9072.602.0334-3326827.483003.70.780.50.150.9916330.03329.75322.545322.2184322.395322.0682.032.7433-3212427.483003.70.780.50.150.4588329.75329.17322.203322.2212322.053322.0712.742.6236-3215544.143504.30.910.50.180.6665329.54329.17321.115321.1885320.940321.0142.372.6732-3011366.264003.40.930.550.220.3842329.17329.17320.790320.7058320.570320.4862.723.1031-30991.363003.00.600.50.150.297329.83329.17320.330321.353320.180321.2033.363.0030-294868.284003.60.960.550.220.1728329.17329.05328.993329.6772328.773329.4573.103.1529-2635576.224004.51.070.550.221.5975329.05327.73328.122327.9725327.902327.7533.153.4328-271097.193003.00.600.50.150.327326.44326.89327.159328.693327.009328.5431.171.9527-261269.883003.00.600.50.150.378326.89327.73327.367328.642327.217328.4922.113.3326-2424085.564004.31.080.60.241.032327.73326.21326.694327.978326.454327.7383.432.94~105~ 25-241133.143003.00.600.50.150.339325.18326.21326.617328.681326.467328.5311.472.8424-2138493.434006.31.310.60.242.4192326.21324.87326.313326.4708326.073326.2312.944.0222-211558.163003.00.600.50.150.465324.65324.87326.148327.115325.998326.9653.233.9223-212759.743003.00.600.50.150.825325.62324.87325.417325.915325.267325.7653.853.9221-19134101.295007.31.410.40.200.9782324.87323.17324.778326.4518324.578326.2524.123.4020-191733.303003.00.600.50.150.519322.48323.17324.552325.541324.402325.3911.542.7519-18134103.525007.61.410.40.201.0184323.17321.18323.709324.8916323.509324.6923.402.431m95-9421515.683004.40.710.350.110.946334.86332.75330.921331.609330.816331.5044.042.8894-9231424.263006.40.910.40.122.010332.75331.09329.990328.900329.870328.7802.883.2393-921086.813003.00.600.50.150.324331.58331.09328.334330.616328.184330.4663.403.2392-8917929.203006.10.950.450.141.092331.09329.82327.997328.563327.862328.4283.233.0591-901456.753003.00.600.50.150.435332.11330.54328.875329.955328.725329.8053.382.2590-8929912.553005.10.710.30.091.525330.54329.82328.385328.085328.295327.9952.253.0589-8516139.173007.41.080.40.121.191329.82327.63326.891326.259326.771326.1393.052.0588-871172.743003.00.600.50.150.351329.07328.43326.881327.929326.731327.7792.342.0587-852867.103003.00.600.50.150.858328.07327.63326.168326.622326.018326.4722.052.4786-85945.673003.00.600.50.150.282327.47327.63325.152327.198325.002327.0482.472.9185-8444853.354006.71.130.40.163.002327.63323.84324.782320.598324.622320.4383.012.2284-8217053.354003.00.840.50.200.510323.84322.96321.820322.250321.620322.0502.221.8583-821208.733003.00.600.50.150.360322.57322.96321.720322.450321.570322.3001.001.7582-8052066.074501.40.730.550.250.728322.96321.8321.306320.870321.058320.6221.901.4781-8030417.253003.00.650.40.120.912321.37321.8320.172320.708320.052320.5881.322.6680-1835871.604501.60.720.60.270.573321.8321.8319.263321.047318.993320.7772.813.3818—10338468.4211000.40.640.70.770.135321.80320.49318.540320.025317.770319.2554.032.86~106~ 17-16595.303003.00.600.50.150.177323.78323.21322.387322.883322.237322.7331.541.1516-142107.213003.00.600.50.150.630323.21322.60322.210321.820322.060321.6701.151.1715-1448466.273502.50.810.450.161.210323.10322.60322.038321.198321.880321.0401.221.9314-1311175.764004.40.920.40.160.488322.60321.96320.778321.232320.618321.0721.981.8313—126481.994003.80.900.450.180.243321.96321.47320.313321.007320.133320.8271.831.5812—1118683.694004.10.940.450.180.763321.47320.95320.073319.967319.893319.7871.581.8211—1019683.694004.10.940.450.180.804320.95320.49319.314319.466319.134319.2861.822.1610—9110540.8811000.40.700.70.770.044320.49320.01318.370319.636317.600318.8662.892.459—8259545.6911001.21.050.50.550.311320.01319.06318.11318.1992317.560317.6492.451.818—5553557.9411001.31.070.50.550.719319.06318.46317.8317.1911317.250316.6411.811.937—614240.973502.70.760.550.190.383320.63319.84319.016319.299318.823319.1071.811.406—543059.374002.50.810.550.221.075319.84318.46318.525317.205318.305316.9851.541.235—4267610.6311002.21.400.450.500.587318.46317.76317.025316.5676316.530316.0731.931.821m4—3697643.8411002.51.430.450.501.743317.76315.45315.435313.1025314.940312.6082.822.253—2368756.0611001.91.310.50.550.699315.45314.47313.75313.2208313.200312.6712.251.9779-7826624.2530010.51.010.450.142.793332.54330.40330.938327.442330.803327.3071.742.3978-7755547.023506.91.120.50.183.830330.40326.13328.135322.126327.960321.9512.442.0077-7658647.023506.91.120.450.164.043326.13323.79324.291319.554324.133319.3972.003.7097-7662757.274005.11.040.450.183.198325.70323.79323.418320.372323.238320.1922.463.7598-7651059.854002.10.800.60.241.071322.56323.79321.351322.559321.111322.3191.453.7576-74302143.085004.91.300.550.281.480323.79321.64320.215319.935319.940319.6603.853.1875-7463326.263004.90.850.450.143.102322.77321.64321.897318.373321.762318.2381.012.9874-68633206.836005.21.500.50.303.292321.64317.66318.662314.068318.362313.7683.282.5973-7225529.353003.10.730.550.170.791319.97319.42318.866318.495318.701318.3301.271.51~107~ 72-7031829.353003.10.730.550.170.986319.42318.20318.071317.079317.906316.9141.511.2871-70852.823003.00.600.50.150.255318.47318.20317.325317.795317.175317.6451.301.2870-6950143.594002.00.700.450.181.002318.20317.68317.002316.458316.822316.2781.381.8669-6846662.874002.30.800.60.241.072317.68317.66316.582316.428316.342316.1881.342.3968-66706321.279001.20.920.50.450.847317.66317.11315.217315.813314.767315.3632.893.1967-6610816.913003.00.600.50.150.324316.92317.11314.994316.636314.844316.4862.082.5966-63378363.509001.20.920.50.450.454317.11316.31314.374315.406313.924314.9563.192.8465-6342817.833003.00.600.50.151.284316.52316.31315.504314.876315.354314.7261.172.2464-631047.203003.00.600.50.150.312316.21316.31314.532315.848314.382315.6981.832.2463—2766396.969001.00.860.550.500.766316.31314.47313.961313.299313.466312.8042.841.772—1971098.3611001.41.270.750.830.136314.47314.35313.325313.939312.500313.111.971.99雨水干管水力计算表附表2-1管段管段长集流时转输面汇流设计流管径坡流速终点地面起点管底终点管底起点管底终点管底223编号度(m)间积(m)面积(m)量(m/s)(mm)度(m/s)标高(m)标高(m)标高(m)埋深(m)埋深(m)(min)47--4832250368700.87410000.00154271.11331.09329.805329.294.2251.848--49178.79.7784701386002.79318000.00068541.10329.82327.265327.143.8252.6849--50165.512.41386001946603.62420000.00065791.15327.63324.846324.734.9742.950--5143014.72160702704203.62422000.00039570.95323.84326.98320.390.653.4551--52170.555581005581004.43122000.00059161.17322.6323.19317.280.655.32~108~ 52--53190.37.46457206585404.43125000.00029920.90322.3321.95317.770.654.5353--54333.156585407039004.43122000.00059161.17321.8321.65320.130.651.6754--183101.897985307985304.43122000.00059161.17321.8321.15317.250.654.55175--176260.250902402.1416000.00075411.06322.77320.518320.314.0422.46176--1657639902406392802.1418000.00040240.84321.64322.12318.770.652.87165--166574.55383990042028302.46318000.0005330.97317.66320.99314.150.653.51166--1677065468146050641004.21423000.00042211.01317.11317.01311.790.655.32167--168378.45506410053902004.21422000.00053511.11316.31316.46273.110.6543.2168--169600.47.4544824056075004.21422000.00053511.11314.47315.66309.080.655.39158--159129.6500030000.00330.78330.09329.701.031.079159--160559.2501748204.14622000.00051791.09330.03327.19326.913.593.1290--91802.750231220030000.00323.24324.634322.233.8161.01491--92892.95231220450370030000.00323.21322.226319.551.0143.66392--157203.27.85808106933303.09420000.00047950.99322.6322.56318.270.654.3343--44141.750907202.15216000.00076261.07319.84317.493317.383.1372.4644--45400.17.2907201299302.84918000.00071321.12318.46316.06315.783.782.6845--46283.713.21299301488302.84918000.00071321.12317.76315.279315.083.1812.6846--41697.317.41488303000702.84922000.00024460.75315.54317.11310.870.654.6741--156106.558519209755703.30621000.00042210.95315314.89309.130.655.8798--99109.250231200.5488000.00199381.09326.44324.6324.381.582.05899--100196.66.723120847301.8915000.00082991.07323.8321.607321.454.8332.35100--101161.19.8847301749903.5220000.00062071.12323.21320.407320.313.3932.9101--102208.412.21749901962403.67420000.00067621.17322.6319.846319.703.3642.9102--103111.115.11962401962403.67420000.00067621.17321.96319.138319.063.4622.9103--10463.816.71962402199203.67420000.00067621.17321.44318.585318.543.3752.9~109~ 104--105185.817.62199202199203.67420000.00067621.17320.49317.72317.593.722.9105--106196.220.22199202839804.36622000.00057431.15320.49317.37317.253.123.238106--107110.5232839803169004.36623000.00045311.05320.01319.84315.350.654.66107--108258.753169003169004.36622000.00057431.15329.06319.36325.840.653.22108--155476.253169003621104.36622000.00057431.15318.5328.41315.720.652.7824--2547.95031130030000.00329.05328.056327.911.0141.13825--2623353113037720030000.00327.94327.625326.931.4251.01426--2793.3537720105760030000.00327.73326.926326.651.0141.08427--28231.85105760105760030000.00326.21325.891325.201.8393.6928--29392.312.62402103200301.72715000.000690.42324.87325.56319.760.655.1129--30134.493965203965201.72715000.00069290.98323.17324.22319.400.653.7730--10163.19.65194105194101.82622000.00010050.48321.8322.52319.130.652.6710--15445.25154641015791904.16822000.00052341.10321.8321.15317.180.654.6268--69906.450509601.20912000.00111641.07333.36332.337331.343.6632.0269--701037.119.2509602477903.89122000.00045621.02330.54327.939327.425.4213.1270--711165.135.32477903588504.1922000.0005291.10329.93327.393326.813.1473.1271--72649.653.53588507587804.1922000.0005291.10326.09329.28324.440.651.6572--15389.75316269031626904.1922000.0005291.10326.03325.44319.250.656.7874--75920.3501422803.37420000.00057021.07332.65330.302329.754.6982.975--76875.418.91422806719503.37420000.00057021.07331.8332329.470.652.3376--77328.518.671524010251603.37420000.00057021.07329.45331.15324.800.654.6577--782225102516012289703.37420000.00057021.07328.15328.8323.150.65578--7922.95122897013405903.37421000.00043960.97328.05327.5324.490.653.5679--80372.65185238018953903.37420000.00057021.07325.75327.4324.200.651.5580--81190.95189539019567803.37420000.00057021.07325.21325.1323.660.651.55~110~ 81--82284.35195678020541303.37421000.00043960.97326324.56323.350.652.6582--83323.35205413022057203.37420000.00057021.07326.33325.35323.890.652.4483--7283.95220572024039103.37422000.0003430.89326.09325.68324.560.651.5389--7959450511790030000.00328.05328.226326.441.0141.60684--85260.750207900.4938000.00161370.98330.12328.42328.001.582.11785--86169.19.420790207900.4938000.00161370.98330.37328.003327.732.1172.63886--8775.512.320790432900.80810000.00131851.03330.54327.532327.432.8383.10687--76309.113.643290432900.80810000.00131851.03331.8327.434327.033.1064.76815--16119.550128700.3056000.00286461.08330.3329.287328.941.9531.3616--1791.76.812870359400.79710000.00128291.02329327.319327.202.9811.817--18170.58.335940673901.4214000.00067680.92329.73326.76326.642.243.08918--19226.311.41293001730903.32220000.00055281.06326.43323.666323.536.0645.6719--20193.214.82586303004303.32220000.00055281.06324.16325.78320.880.653.2820--7155.37.13184103337503.32221000.00042610.96322.83323.51321.270.651.567--8180.359960509960504.16823000.0004131.00322.03322.18315.160.656.878--9148.1599605010142504.16822000.00052341.10321.37321.38320.140.651.239--10290.45101425010270004.16822000.00052341.10321.8320.72319.160.652.6436--30173.250769801.82615000.00077471.03323.17320.13319.992.353.17933--29154.950395300.93811000.00106880.99324.87322.74322.571.912.331--28449.850728001.72715000.00069290.98326.21324.175323.865.9052.351--2300.650317100.75210000.00114210.96325.98324.2323.841.82.1412--3611.210.1317101120402.23216000.00082041.11326.87323.239322.752.7414.123--444819.41120402165603.38820000.0005751.08324.51321.879321.614.9912.94--5358.826.22165603058404.16822000.00052341.10323.36320.419320.244.0913.125--6145.131.75613005733204.16823000.0004131.00323.13322.71321.680.651.45~111~ 6--7340.655733206623004.16823000.0004131.00322.83322.48319.960.652.8723--20105.750179800.4268000.00120490.85324.16322.707322.582.2431.5822--19283.450855402.02916000.00067791.01326.43324.168323.973.7222.4621--18134.350619101.46814000.00072340.95329.73327.1327.012.242.72435--30265.450459101.08912000.00090580.96323.17321.389321.152.0612.0234--29274.850369600.87710000.00155331.12324.87323.51323.072.111.832--28180.150616501.46214000.00071750.95326.21323.54323.412.242.79612--13128.6501202802.85318000.00071521.12324.87322.26322.172.682.713--14154.26.91202801845404.07822000.00050111.07324.08321.037320.963.8333.1214--595.19.31845402554604.07824000.0003150.90323.36323.43319.500.653.8637--3843350926102.19616000.00079411.09325.87323.756323.414.3642.4538--3930011.6926101733803.30620000.00054751.05322.46319.74319.566.132.939--40845.316.11733803842403.30621000.00042210.95318.34321.81314.880.653.4640--41515.553842405518503.30622000.00032930.87315.54317.69312.880.652.6694--92170.5501304403.09420000.00047950.99323.21320.395320.313.3852.9182--168180.550580401.37712000.00144821.22316.31314.19313.922.022.391177--178255501776804.21422000.00053511.11319.43316.463316.313.5073.12178--179317.68.61776802788404.21424000.00033640.93318.2318.78317.130.651.07179--180501.46.43436703884604.21423000.00042211.01317.66317.55315.120.652.54180--16646653884604786304.21424000.00033640.93317.66317.01316.020.651.64161--162631.9501038702.46318000.0005330.97330.4328.099327.724.4414.63162--163555.315.34582308928302.46318000.0005330.97326.13329.75321.350.654.78163--164585.913.796707014454502.46318000.0005330.97323.79325.48321.140.652.65164--165302.95271437032006202.46318000.0005330.97321.64323.14316.180.655.46181--17985.150648301.53814000.0007941.00318.2316.028315.962.4422.53~112~ 172--164516.850504400030000.00323.79321.636320.091.0143.704171--163514.950742401.76115000.00072051.00326.13324.14323.7811.212.35170--162416.750354360030000.00330.4330.636329.398.0141.014173--174438.350276220030000.00325.7326.001324.692.1491.014174--164641.45276220764520030000.00323.79324.686322.761.0141.02867--54266.550946302.24416000.00082921.12321.8318.91318.702.463.10366--52148.150876202.07816000.00071111.03322.6320.244320.142.7062.4658--59321.4501065302.52718000.00056110.99332.75330.263330.076.4742.6859--6021511.11388702042303.94822000.00046961.04330.54327.528327.425.2223.1260--61144.814.42204002514104.43122000.00059161.17328.07325.037324.955.5033.1261--62331.316.52568002876804.43118000.00172511.74323.99327.42322.320.651.6762--5163.852876802876804.43124000.00037190.98323.84323.34321.530.652.3157--50140.850214100.5088000.00171331.01327.63325.89325.651.581.97956--48178.150416000.98711000.00118341.04331.09329.394329.182.1861.9165--61175.95053900.1284000.00438561.02328.07327.704326.931.3661.1464--60218.750161700.3837000.00198521.00330.54329.507329.072.6031.4763--59359.650323400.76710000.00118810.98332.75331.382330.953.4781.8~113~ 污水厂管渠水力计算表附表8-1管渠及构设计流量尺寸D(mm)或B流速长度沿程水局部水合筑物名称(L/s)×H(m)iv(m/s)l(m)力损失(m)力损失(m)计出水口至巴氏流量计120413000.00060.90100.000.0600.0430.103巴氏流量计至紫外消毒池120413000.00060.905.000.0030.0070.010紫外消毒池至滤池120413000.00060.9023.000.0140.4800.494滤池至机械混合池120413000.00060.975.000.0030.2100.213机械混合池至混合池集配水井6029000.00030.9510.000.0030.3550.358混合池配水井至二沉池集配水井120413000.00060.9770.000.0420.5420.584二沉池配水井至二沉池3016000.00071.0615.000.0110.3650.376二沉池至二沉池配水井5008000.00040.9910.000.0040.0320.036二沉池配水井至总管200016000.00060.9961.000.0370.0200.057单个生化池出水管5008000.00041.0662.000.0250.1860.211生化池至生化池配水井6029000.00030.9575.000.0230.1300.153生化池配水井至初沉池6029000.00030.9520.000.0060.2470.253初沉池至初沉池配水井6029000.00030.955.000.0020.1670.169初沉池配水井至巴氏流量计120413000.00060.9764.000.0380.2440.282巴氏流量计至沉砂池120413000.00060.9747.000.0280.2530.281~114~'