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ringsystem环状管网branchingsystem枝状管网feeder给水管，进料管servicereservoir配水池（调节水池）70mhead70米水头pipejunctions管网节点headloss水头损失flow,runoff,discharge流量Connection连接管，排出管collectingsewer污水支管Interceptor截流污水管(interceptingsewer)manhole人孔，检查井surfacewater地表水wastewater污废水suspendedmaterials悬浮物metabolism新陈代谢outfall出水口，排水口chemicalclarification化学澄清coagulation混凝coagulant混凝剂sedimentation沉淀filtration过滤disinfection消毒sedimentatinbasin沉淀池soften软化aeration通风，曝气plainsettling自由沉淀detentiontime滞留时间flocculation絮凝flocs絮凝体coagulantaid助凝剂(flocculationaid)clarifier澄清池contacttank接触反应池sedimentationbasins沉淀池settlingtank沉淀池(settler)parallel-platesettler斜板沉淀池tubesettler斜管沉淀池feedrate水流速度laminarflow层流filtermedium过滤介质（滤料）back-wash反冲洗hydraulicgrading水力分级filtercycle过滤周期chlorination氯化，用氯处理breakpointchlorination折点加氯breakpointdosage折点剂量free(available)自由性氯dissolvedosygen溶解氧(DO)biochemicalosygendemand(BOD)生化需氧量chemicaloxygendemand(COD)化学需氧量totalsuspendedsolids(TSS)总悬浮固体mixedliquorsuspended-solids(MLSS)混合液悬浮固体浓度volatilesuspendedsolids(VSS)挥发性固体primarytreatment一级处理screen格栅gritchamber沉砂池settler沉淀池primaryclarifier初沉池turbulence紊流primaryeffluent一级出水secondarytreatment二级处理biologicaltreatmentsystem生物处理系统activated-sludgesystem活性污泥系统aerationbasin曝气池returnactivatedsludge(RAS)回流污泥stepaerationactivated-sludgeprocess阶段曝气活性污泥法BOD-SSloadingBOD污泥负荷mixedliquorsuspended-solids(MLSS)混合液悬浮固体浓度sequentialbatchreactor(SBR)序批式（间歇式）活性污泥法secondaryclarifier二沉池sludgetreatment污泥处理sludgethickening污泥浓缩sludgedigestion污泥消化雨落管downpipe,downspout管沟pipeduct公称直径norminaldiameter(DN)异径管，渐缩管reducer补偿器compansator伸缩节expansionjoint检查井inspectionchamber,manhole人孔雨水井gullytrap出水口outlet降水，排水dewatering,waterremoval17、precipitation降水、降雨量、沉淀57、runoff径流。溢流58、apportion分配113、contaminate污染物致污物115、freeflowing重力流116、outlet出口排出口124、disinfection消毒144、aeration曝气通风183、main干线干管194、watermeter水表195、leak漏出量泄漏210、pretreat，preliminarytreatment预处理211、coagulation混凝凝结凝结物219、chlorination加氯消毒氯化229、coagulant混凝剂239、filter滤池过滤260、settling沉淀沉降作用沉淀物261、disperse使分散使散开疏散281、flocculator絮凝池反应池293、enmeshment网捕包络卷扫295.clarification澄清净化296.clarifier澄清池澄清器301.turbulence紊流紊乱323.artesianwell喷水井自流井327.silt泥沙淤泥使淤塞充塞337.underdrain暗管暗沟排水暗管349.headloss水头损失382.injector水射器喷嘴注射器386.breakpointchloranation折点加氯429.grid隔栅网格432.fireflow消防流量436.blowoffvalve排污阀排空阀447.recycle使再循环再生（v&n）448.reclaim回收再生利用452.precipitate沉淀物降水459.holdingtank存储池调节池532.headway进展净空高度545.除p脱n活性污泥处理技术nitrogenandphosphorusremovalinactivatedsludgesystem554.生物接触氧化法bio-contactoxidationprocess563.stormwater雨水564.flowrate流量570.pond池塘；筑成池塘574.trench沟渠管沟；掘沟589.flocculate絮凝凝聚590.thickner浓缩池浓缩器596.triklingfilter滴滤池（普通）生物滤池biofilter597.activated－sludgeprocesses活性污泥法599.rotatingbiologicalcontactor生物转盘604.slime生物膜粘泥606.landfill垃圾填埋法垃圾；填埋613.eutrophication富营养化超营养作用615.nitrification硝化作用氮化合624.dissolvedoxygensagcurves氧垂曲线625.aerobic好养的依靠氧气的636.decaycoefficient衰减系数639.sorption吸附作用641.reaeration再曝气复氧659.anaerobic厌氧性的671.specificsurface比表面积681.rotatingbiologicalcontactor生物转盘728.anaerobicdigester厌氧消化池740.fixedfilm固定膜自然沉淀sedimentation凝聚coagulation沉淀settling活性污泥activatedsludge曝气aeration回流污泥，返送污泥returnsludge剩余污泥excesssludge污泥消化sludgedigestion滴滤池tricklingfilter硝化nitrification脱氮denitrificationBOD负荷BODloading污泥膨胀bulkingBOD(生化需氧量)biochemicaloxygendemandCOD（化学需氧量）chemicaloxygendemand溶解氧dissolvedoxygenAnaerobicdigestion厌氧处理Composting堆肥处理Lagooning[lə'gu:niŋ]曝气法Disinfection消毒Coagulation混凝Settlement沉降Retentionpond澄清池gravityvalvelessfilter无阀滤池Indicator指示剂膜生物反应器MembraneBioreactordenitrification脱氮UASBtreatment用水定额waterconsumptionnorm排水定额wastewaterflownorm水质waterquality渠道channel；conduit干管main格栅barscreen曝气aeration沉淀sedimentation澄清clarification消毒disinfection贮水池storagereservoir；storagetank倒虹管invertedsiphon管网漏失水量leakage日变化系数dailyvariationcoefficient时变化系数hourlyvariationcoefficient管井deepwell,drilledwell快滤池rapidfilter虹吸滤池siphonfilter压力滤池pressurefilter滤速rateoffiltration表面冲洗surfacewashing反冲洗backwash气水反冲洗air-waterwashing冲洗强度intensityofbackwashing膨胀率percentageofbed-expansion跃水井dropmanhole事故排出口emergencgoutlet水体自净self-purificationofwaterbodies一级处理primarytreatment二级处理secondarytreatment生物处理biologicaltreatment活性污泥法activatedsludgeprocess生物膜法biomembranceprocess双层沉淀池（隐化池）Imhofftank初次沉淀池primarysedimentationtank二次沉淀池secondarysedimentationtank生物滤池biologicalfilter,tricklingfilter塔式生物滤池biotower生物转盘rotatingbiologicaldisk生物接触氧化bio-contactoxidation曝气池aerationtank推流曝气plugflowaeration完全混合曝气complete-mixingaeration普通曝气conventionalaeration阶段曝气stepaeration吸附再生曝气biosorptionprocess,contactstabilization高负荷曝气high-rateaeration延时曝气extendedaeration氧化沟oxidationaitch稳定塘（氧化塘）stabilizationpond,oxidationpond空气扩散曝气diffusedairaeration初沉污泥primarysludge二沉污泥secondarysludge活性污泥activatedsludge消化污泥activatedsludge回流污泥returnedsludge剩余污泥excessactivatedsludge污泥气sludgegas污泥消化sludgedigestion好氧消化aerobicsigestion厌氧消化anaerobicdigestion重现期recurrenceinterval降雨历时durationofrainfall地面集水时间timeofflow管内流行时间timeofflow汇水面积catchmentarea充满度depthratio表面水力负荷hydraulicsurfaceloading容积负荷volumeloading污泥负荷sludgeloading需氧量oxygendemand供氧（气）量oxygen(air)supply污泥回流比returnsludgeratio污泥浓度sludgeconcentration截流倍数interce