环境工程--毕业论文

江苏科技大学本科毕业设计（论文）学院生物与环境工程学院专业环境工程学生姓名韦媛媛班级学号0743003206指导教师陈海丰二零一一年六月江苏科技大学本科毕业论文某工业园区污水处理厂的设计Anindustrialparkwastewatertreatmentplantdesign江苏科技大学本科毕业设计（论文）I摘要随着工业化步伐的不断加快，废水污染物的产生量也明显的增加。为使环境污染和生态破坏加剧趋势得到基本控制，就要对工业废水污染进行综合防治。为了便于工业废水的综合治理，工业已逐步从分散型向集中型发展，目前较为普遍的做法是开发工业园把工业企业向工业园迁移，并在园区建立公共污水处理厂，区内的废水经过预处理后集中处理，以解决工业污水的难处理及日益严重的水污染与水资源缺乏的问题。工业园区的产业众多，覆盖范围广，不同行业产生废水的所含污染物质和污染程度各有所不同。因而在进行工业园区污水处理设计前，笔者对该工业园区目前的企业规模、企业性质，园区场地面积、规划要求、污水特征以及水处理工艺等因素进行综合分析，决定采用SBR序列间歇式活性污泥法。该工艺将传统的曝气池、沉淀池由空间上的分布改为时间上的分布，形成一体化的集约构筑物，并利于实现紧凑的模块布置，最大的优点是节省占地。另外，可以减少污泥回流量，有节能效果。典型的SBR工艺沉淀时停止进水，静止沉淀可以获得较高的沉淀效率和较好的水质。因此，本次设计选择SBR工艺作为该工业园区污水处理厂工艺的方案。关键词：工业园区；污水处理；SBR工艺；活性污泥江苏科技大学本科毕业设计（论文）IIAbstractWiththeaccelerationofindustrialization,theoutputofwastewaterisincreasingobviously.Togetbasiccontroloftheaggravatingenvironmentalpollutionandecologicaldestruction,weneedtotakecomprehensivemeasurestopreventandtreattheindustrialwastewaterpollution.Inordertofacilitatethecomprehensivemanagementofindustrialwastewater,manufactureisgraduallytransformingfromdecentralizationtocentralization.Now,theverypopularpracticeisdevelopingindustrialparks,thenmigratetheindustrialenterprisestoit.Webuiltpublicsewagetreatmentplantsinthepark,anddisposeindustrialwastewaterfromdifferententerprisescentrallyafterpretreatmenttosolvetheintractabletreatmentofindustrialwastewaterandincreasinglyseriouswaterpollutionandwatershortageproblem.Therearedifferentkindsofindustriesinthepark,andthewastewaterfromdifferentindustriescontainsvariouspollutantsandthepollutionlevelsaredifferent.So,beforethedesignofsewagetreatmentinindustrialpark,thedesignertakesthefirmsize,thecompanyproperty,theareaofthepark,theplanningrequirements,sewagecharacteristicsandwatertreatmenttechnologyintoconsideration,decidedtoadoptSequencingBatchReactorActivatedSludgeProcess.Theprocesschangethetraditionalaerationtank,settlingtankfromthespatialdistributiontothedistributionofthetime,itformsintensiveintegrationstructures,andhelptoachieveacompactlayoutmodule,thebiggestadvantageissavingarea.Inaddition,itreducesthesludgerecycleflowrateanditisenergysaving.AtypicalSBRprocessstopswaterwhensediment,staticprecipitationcangethigherefficiencyandbetterwaterquality.Therefore,thisdesignchoosestheSBRprocessastheindustrialparkwastewatertreatmentplanttechnologyprogram.Keywords:IndustrialPark;wastewatertreatment;SBRprocess;activatedsludge江苏科技大学本科毕业设计（论文）III目录第一章绪论.................................................................................................................................................11.1前言............................................................................................................................................11.2设计的任务及依据....................................................................................................................21.2.1设计任务..........................................................................................................................21.2.2设计依据.........................................................................................................................21.2.3设计原则.......................................................................................................................21.3设计基础资料...........................................................................................................................21.3.1工业园区概括.................................................................................................................21.3.2气象资料...........................................................................................................................31.3.3工程地质资料..................................................................................................................31.3.4水质水量资料.................................................................................................................3第二章污水处理工艺的选择与确定...........................................................................................................42.1工业园区污水的特点及污水处理方案的选择原则................................................................42.1.1工业园区污水水质水量的特点......................................................................................42.1.2工业园区污水处理的难点....................................................................................................42.1.3污水处理工艺的选择原则....................................................................................................52.2工艺方案的分析.......................................................................................................................52.3工艺流程的确定......................................................................................................................62.3.1SBR工艺和氧化沟工艺的比较...................................................................................62.4主要构筑物的选择....................................................................................................................9第三章污水处理系统工艺设计.................................................................................................................