I摘要废水处理厂设计规模2000m3/d,设计水质水量为:Q=2000m3/d,BOD5=230mg/L,CODcr=1100mg/L,PH=9~11,SS=210㎎/l,色度400倍。经处理后,应达到下列出水水质:BOD≤25mg/L,COD≤100mg/L,色度≤40倍,SS≤70mg/L,PH=6~9。本设计采用水解酸化加生物接触氧化处理废水。处理构筑物主要有调节池、水解酸化池、生物接触氧化池、竖流式沉淀池、浓缩池、泵房、脱水机房和鼓风机房等。其主要构筑物生物接触氧化池采用传统的一段式接触氧化,总共采用两座,每座分为四格,处理效果明显。预处理的调节池和水解酸化池有效的降低了污水的各项指标,为生物接触氧化池的进水,提供了最佳进水指标,同时还有效的降低了污水的色度,再加上后面的竖流式沉淀池的絮凝沉淀作用,色度指标大大降低,基本上可以满足出水的要求。关键词:印染废水废水处理生物接触氧化IIAbstractThedesigningscaleofwastewatertreatmentplantis2000m3/d,thedesigningqualityandquantityofwaterare:Q=2000m3/d,BOD5=230mg/L,CODcr=1100mg/L,PH=9~11,SS=210㎎/l,Colordegree=400times.Afterdisposingofit,thequalityofwatershouldattainthefollowingstandards:BOD≤25mg/L,COD≤100mg/L,SS≤70mg/L,Chroma≤40times,PH=6~9。ThedesignacidhydrolysisBiologicaloxidationwastewatertreatment.Dealingwiththemainstructuresregulationpool,poolacidhydrolysis,biologicaloxidationpond,theverticalflowsedimentationtank,concentratedpool,pumpingstations,Dehydrationroomandtheotherblower.Themainstructuresofbiologicaloxidationpondusedforthetraditionalcontact-oxidation,usingatotaloftwo,eachdividedintofourblocks.significanttreatmenteffect.PretreatmentRegulationpoolsandpoolacidhydrolysiseffectivelyreducethesewageindicatorsofbiologicaloxidationpondinundated.Intakeprovidesthebestindicator,butalsoeffectivelyreducesewagecolor,plusbehindtheverticalflowsedimentationtankofflocculationandsedimentation,colorindicatorsgreatlyreduced.Basicallymeetwaterrequirements.KEYWORDS:textileprintinganddyeingwastewaterKeywords:dyeingwastewaterwastewatertreatmentbiologicaloxidationIII目录摘要.........................................................................................................................................IAbstract......................................................................................................................................II目录......................................................................................................................................III前言.......................................................................................................................................V第一章绪论............................................................................................................................11.1印染废水的产生及特点............................................................................................11.2印染废水的水质及水量分析....................................................................................11.2.1不同产品排放的废水水质..............................................................................11.2.2废水水量..........................................................................................................21.3印染废水的危害........................................................................................................21.4设计任务....................................................................................................................21.4.1本毕业设计课题的目的和要求......................................................................21.4.2本毕业设计课题的技术要求与数据..............................................................2第二章污水处理站方案的确定............................................................................................42.1确定污水处理方案的原则........................................................................................42.2污水处理方案的确定................................................................................................42.2.1污水处理路线选择..........................................................................................42.3污水处理工艺流程方案介绍....................................................................................62.3.1传统活性污泥法..............................................................................................62.3.2氧化沟工艺......................................................................................................72.3.3生物接触氧化工艺..........................................................................................72.4工艺流程的确定........................................................................................................82.5主要构筑物的选择....................................................................................................92.5.1格栅..................................................................................................................92.5.2调节池..............................................................................................................92.5.3污水泵房..........................................................................................................92.5.4水解酸化池....................................................................................................102.5.5生物接触氧化池............................................................................................132.5.6混凝沉淀法....................................................................................................152.5.7浓缩池............................................................................................................152.5.8污泥脱水...........................................................