啤酒厂污水处理工艺流程设计(1)VIP免费

北京理工大学珠海学院2007届本科生毕业设计啤酒厂污水处理工艺流程设计摘要啤酒工业在我国迅猛发展的同时，排出了大量的啤酒污水，给环境造成了极大的威胁。啤酒污水处理厂的处理水量为5000m3/d,不考虑远期发展。原污水中各项指标为：BOD浓度为800mg/L,COD浓度为1400mg/L，SS浓度为350mg/L,Ph=6～10。因该污水BOD值较大,不经处理会对环境造成巨大污染，故要求处理后的排放水要严格达到国家二级排放标准,即：BOD≤20mg/L，COD≤100mg/L，SS≤70mg/L，Ph=6～9。本文分析了啤酒生产中污水产生的环节，污染物及主要污染来源，并从好氧、厌氧生物处理两方面来考虑了污水治理工艺，提出了UASB+CASS的组合工艺流程。可将污水COD由1400mg/L降至50～100mg/L，BOD从800mg/L降至20mg/L以下，SS由350mg/L降到70mg/L以下，出水符合标准。本设计工艺流程为：啤酒污水→格栅→污水提升泵房→水力筛→调节池→UASB反应器→CASS池→处理水该处理工艺具有结构紧凑简洁，运行控制灵活，抗冲击负荷，污泥量小等特点。为啤酒工业污水处理提供了一条可行途径。具有良好的经济效益、环境效益和社会效益。关键词：啤酒污水UASBCASSI北京理工大学珠海学院2007届本科生毕业设计SewageTreatmentProcessDesignofBeerFactoryAbstractWiththerapiddevelopmentofbreweryindustryinChina,morebrewerywastewaterisdischarged,whichendangersenviroment.Thewaterwhichneedstotreatmentinthebeerwastewatertreatmentplantis5000m3/d,regardlessofthespecifiedfuturedevelopment.Varioustargetintherawwastewateris:theconcentrationofBODis800mg/L,theconcentrationofCODis1400mg/L,theconcentrationofSSis350mg/L，andpHis6～10.Forthebeerwastewater'sBODishigh,itcouldpollutetheenvironmentifdrainedbeforetreatment,soitrequestthebeerwastewaterwhichdrainedmustbestrictlytreatedtothetwoeffluencestandardinthecountry,whichisasfollowing:BOD≤20mg/L,COD≤100mg/L,SS≤70mg/L,pH=6～9.Accordingtotheproductscaleofbeerbrewery,themainstandardofdrainingwater\naturalmaterials,andsoon,themainprocesstechnologyofthebeerwastewaterdisposalstationisdefinedasUASB+CASS.Practiceofprojectindicate,whenCODofwastewaterreducesfrom1400mg/lto50~100mg/l,BODreducesfrom800mg/lto20mg/l,SSreducesfrom350mg/lto70mg/l,sothatdrainsoutcanreachestheStandard.Thetechnologicalprocessofthisdesignis:Beerwastewater→Screens→Thesewageliftpumphouse→shuilishai→Regulatestank→ReactiontankofUASB→TankofCASS→TreatmentwaterThistechnologyofwastewatertreatmenthasmanytraits.Suchas,well-knitstructure,pithyquickcontrol,lastingattacked,lesssledgecapacity.Practiceindicatesthatthecomposedcrafthasreliablefunction,itsinvestmentislittle,anditsrunningandmanagementisuncomplicated.Keywords:beerwastewaterUASBCASSII北京理工大学珠海学院2007届本科生毕业设计III北京理工大学珠海学院2007届本科生毕业设计目录摘要.............................................................................ⅠABSTRACT.......................................................................Ⅱ1前言.......................................................................................................................................................11.1研究的意义及目的...................................................................................................................11.2研究目标和关键问题..............................................................................................................11.3研究现状和内容........................................................................................................................12工艺流程选择及说明.............................................................................