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1、毕业设计（论文）题目：某屠宰厂生产废水处理工程设计学院：环境与化学工程摘要本设计为屠宰厂生产废水处理设计，设计过程为初步设计。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350m3/d，不考虑远期发展。原污水中各项指标为BOD浓度为450mg/L，COD浓度为900mg/L，SS浓度为520mg/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≤25mg/L,COD≤60mg/L,SS≤70mg/L。经分析知该处理水属易生物降解又无明显毒性的废水，可采
2、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。二级处理主要采用生物法，包括厌氧生物处理法中的UASB法和好氧生物处理法中的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，气浮池，UABA法，SBR法ABSTRACTThisdesignisoneslaughterhousewastewatertreatment.Thedegreeofthedesingisinapreliminaryphase.Themaindistinguish
3、ingfeatureoftheslaughterhousewastewatertreatmentisthatitcontainsthemassiveorganicmatters,soitbelongstothehighdemandisalsohing.Thewaterwhichneedstotreatmentintheslaughterhousewastewatertreatmentplantis350m3/d,regardelessofthespecifiedfuturedevelopment.Varioustargetintherawwastewateris:theconce
4、ntrationofBODis450mg/L,theconcentrationofCODis900mg/L,theconcentrationofSSis520mg/L.fortheslaughterhousewastewater’sBODishigh,itcouldpollutetheenvironmentifdrainedbeforetreatment,soitrequesttheslaughterhousewastewaterwhichdrainedmustbestrictlytreatedtotheoneeffluencestandardinthecountry,which
5、isasfollowing:BOD≤25mg/L,COD≤60mg/L,SS≤70mg/L.Aftertheanalysis,thequalityofthisprocessingwaterbelongstothewastewaterthateasybiologydegradeandnothavetheobviouspoison,couldusetwolevelsofbiologicaltreatmenttocausethewaterdrainedmeetthedesignatedstandard.firstlevelofprocessingmainlyusesthephysica
6、lmethods,whichremovesthesuspendedmatterandtheinorganicsubstanceinthesewage.Secondlevelsofprocessingmainlyusesthebiologymethods,consistsofUASBofdemandoxygenbiologymethodsandSBRofanaerobicoxygenbiologymethods,whichcouldremoveBOD,CODinthewastewater.Theentirtechnologicalprocesshavethecharacterisi
7、ticsoflowerinvestment,goodtreatmenteffect,easytechnologyprocess,usingsmallarea,runningsteady,andconsuminglowerenergy.KEYWORDS：slaughterhousewastewatertreatment，highconcentrationoforganicwastewater,screens,flotation,UASBtechnology,SBRtechnolog
