污水处理工艺设计-毕业论文

5000m3/d小区污水处理工艺设计目录摘要.................................................IVABSTRACT................................................V第一章概述............................................11.1研究目的和意义.............................................11.2污水的来源.................................................11.3水量水质分析...............................................11.3.1水量分析..............................................11.3.2水质分析..............................................21.4生活污水的危害.............................................21.5排放标准..................................................21.6设计数据..................................................4第二章工艺流程........................................42.1国内外治理现状.............................................42.2各工艺对比分析.............................................52.2.1氧化沟工艺...........................................52.2.2缺氧-好氧生物脱氮工艺（A1／0工艺）...................62.2.3厌氧-好氧生物除磷工艺（A2/O工艺）.....................72.2.4厌氧-缺氧-好氧生物除磷工艺（A2/O工艺）................72.2.5CASS法...............................................92.2.6SBR工艺..............................................92.3工艺流程..................................................102.4工艺说明..................................................112.4.1格栅.................................................112.4.2进水泵房与集水井.....................................112.4.3沉砂池...............................................112.4.4滗水器...............................................132.4.5接触消毒池...........................................142.4.6污泥处理系统........................................16第三章计算说明书.....................................173.1原始设计参数..............................................173.2中格栅....................................................173.2.1设计原则.............................................183.2.2设计参数.............................................183.2.3设计计算.............................................193.3集水池....................................................203.3.1设计原则.............................................203.3.2设计参数.............................................213.3.3设计计算.............................................213.4提升泵房..................................................213.4.1设计参数.............................................213.4.2设计计算.............................................213.5平流式沉砂池..............................................223.5.1设计原则.............................................233.5.2设计参数.............................................233.5.3设计计算.............................................233.6SBR反应池................................................243.6.1设计原则.............................................253.6.2设计参数.............................................253.6.3设计计算.............................................253.7鼓风机房.................................................293.8接触消毒池................................................293.8.1设计参数.............................................293.8.2设计计算.............................................303.9污泥处理系统..............................................303.9.1污泥浓缩池...........................................303.9.3污泥脱水机房.........................................31第四章污水的平面布置.................................324.1平面布置一般原则.........................................32第五章污水的高程布置.................................325.1高程布置任务.............................................325.2高程布置原则............................................335.3各构筑物水头损失计算......................................33参考文献...............................................34摘要本设计为小区污水处理工艺设计，污水处理的规模是5000m3/d，生活污水的主要污染物质是BOD、COD、SS、TN、NH3-N、TP。目前国内外多采用采用生物处理方法处理生活废水。设计在综合考虑了各种影响因素后，最后决定使用以SBR为主体反应池的污水处理工艺。SBR法的全称是间歇式活性污泥法（SequencingBatchReactorActivatedSludgeProcess）。这是一种按间歇曝气方式来运行的活性污泥污水处理技术，又称序批式活性污泥法。与传统污水处理工艺相比，SBR法最大的特点在于采用时间分割的操作方式替代空间分割的操作方式，处理构筑物少，节省了基建费用和运行费用。污泥的SVI值低，污泥易沉淀，一般不会产生污泥膨胀。运行方式灵活，非常适合用于小型污水处理厂。SBR工艺同时具有的去除BOD和脱氮除磷的功能，也是其一大优势。经其处理后的出水能达到《城镇污水处理厂污染物排放标准》（GB18918-2002）中的二级标准。关键词：SBR工艺生活污水生物处理脱氮除磷ABSTRACTThisdesignisdesignedforresidentialsewagetreatment.Thesizeofthesewagetreatmentis5000m3/d,ThemainpollutantsofsewageareBOD、COD、SS、TN、NH3-N、TP.Thepresenttreatmentofdomesticwastewaterusingbiologicaltreatmentmethods.Designthecomprehensiveconsiderationofvariousfactors;wefinallydecidedtouseSBRasthemainreactiontanktowastewatertreatmentprocess.ThefullnameoftheSBRprocessisabatchactivatedsludgeprocess(SequencingBatchtheReactorActivatedSludgeProcess),thisisrunbytheintermittentaerationactivatedsludgewastewatertreatmenttechnology,andalsoknownasasequencingbatchactivatedsludgeprocess.Comparedwithconventionalwastewatertreatmentprocess,theSBRischaracterizedbyusingtime-divisionoperationofthealternativespacepartitioningmodeofoperationtodealwithstructuresless,saveinfrastructurecostsandoperatingcosts.SVIvalueofsludge,sludgeprecipitation,generallydoesnotproducesludgebulking.Flexibleandwellsuitedforsmall-scalesewagetreatmentplant.WiththeremovalofSBRBODandgentrificationandphosphorusfunctionisabigadvantage.Itseffluentcanreachtheurbansewagetreatmentplantemissionstandards(