屠宰场废水处理

洛阳理工学院毕业设计（论文）I洛阳理工学院毕业设计（论文）题目:日屠宰生猪2500头屠宰厂废水处理站工程设计姓名禇铭林系（部）环境工程与化学系专业环境工程指导教师田文杰2014年5月20日洛阳理工学院毕业设计（论文）II日屠宰生猪2500头屠宰厂废水处理站工程设计摘要本设计为屠宰厂生产废水处理设计。屠宰废水水质的主要特点是含有大量的有机物，属高浓度有机废水，故其生化需氧量也较大。该屠宰废水处理厂的处理水量为2500m3/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1200mg/L，SS浓度为1000mg/L。因该废水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严格达到国家一级排放标准，即：BOD≤30mg/L,COD≤80mg/L,SS≤60mg/L。经分析知该处理废水属易生物降解又无明显毒性的废水，可采用两级生物处理以使出水达标。一级处理主要采用物理法，用来去除水中的悬浮物质和无机物。二级处理主要采用SBR法，可有效去除水中的BOD、COD。整个工艺具有投资少，处理效果好，工艺简单，占地面积省，运行稳定，能耗少的优点。关键词：屠宰废水处理，高浓度有机废水，格栅，隔油沉砂池，SBR法洛阳理工学院毕业设计（论文）IIIDailyslaughterpigs2500slaughterplantengineeringdesignofwastewatertreatmentstationABSTRACTThisdesignisoneslaughterhousewastewatertreatment.Thedegreeofthedesireisinapreliminaryphase.Themaindistinguishingfeatureoftheslaughterhousewastewatertreatmentisthatitcontainsthemassiveorganicmatters,soitbelongstothehighdemand.Thewaterwhichneedstotreatmentintheslaughterhousewastewatertreatmentplantis2500m3/d,regardlessofthespecifiedfuturedevelopment.Varioustargetintherawwastewateris:theconcentrationofBODis800mg/L,theconcentrationofCODis1200mg/L,theconcentrationofSSis1000mg/L.fortheslaughterhousewastewater’sBODishigh,itcouldpollutetheenvironmentifdrainedbeforetreatment,soitrequesttheslaughterhousewastewaterwhichdrainedmustbestrictlytreatedtotheoneeffluencestandardinthecountry,whichisasfollowing:BOD≤30mg/L,COD≤80mg/L,SS≤60mg/L.Aftertheanalysis,thequalityofthisprocessingwaterbelongstothewastewaterthateasybiologydegradeandnothavetheobviouspoison,couldusetwolevelsofbiologicaltreatmenttocausethewaterdrainedmeetthedesignatedstandard.firstlevelofprocessingmainlyusesthephysicalmethods,whichremovesthesuspendedmatterandtheinorganicsubstanceinthesewage.Secondlevelsofprocessingmainlyusestheconventionalactivatedsludgemethods,whichcouldremoveBOD,CODinthewastewater.Theentiretechnologicalprocesshavethecharacteristicsoflowerinvestment,goodtreatmenteffect,easytechnologyprocess,usingsmallarea,runningsteady,andconsuminglowerenergy.KEYWORDS:slaughterhousewastewatertreatment，highconcentrationoforganicwastewater,screens,flotation,conventionalactivatedsludge洛阳理工学院毕业设计（论文）IV目录日屠宰生猪2500头屠宰厂废水处理站工程设计.............................II前言...........................................................................................................1第1章工程概况、设计原则、范围、依据.............................................21.1工程概况..........................................................................................21.1.1概述......................................................................................21.1.2水量、水质资料..................................................................2表1-2药品名称及用量.................................................................31.1.3地质资料..............................................................................31.1.4用地资料..............................................................................31.2设计原则、范围、依据..................................................................41.2.1设计原则..............................................................................41.2.2设计范围.............................................................................4第2章工艺流程的比较和确定.................................................................62.1工艺流程的比较..............................................................................62.1.1SBR法（间歇式活性污泥法）........................................62.1.2氧化沟法..............................................................................62.1.3CASS法................................................................................72.1.4AB法....................................................................................72.1.5传统活性污泥法.................................................................82.2工艺流程的确定.............................................................................9第三章主要构筑物的选择................................................................103.1格栅...............................................................................................103.2调节池...........................................................................................113.3沉砂池...........................................................................................123.4曝气池...........................................................................................123.5消毒池...........................................................................................123.6二沉池............................................................................................12洛阳理工学院毕业设计（论文）V3.7污泥浓缩........................................................................................133.8污泥脱水........................................................................................13第4章主要构筑物的设计计算...............................................................154.1格栅设计计算..............................................................................154.1.1设计说明...........................................................................154.1.2设计参数的选取...............................................................154.1.3格栅的间