编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第PAGE42页共NUMPAGES42页第PAGE\*MERGEFORMAT42页共NUMPAGES\*MERGEFORMAT42页摘要本次设计的内容是糖厂废水的处理，主要的处理对象主要包括车间生产废水和部分制糖工艺冷却循环水。设计每天处理水量为14400m3/d，进水水质为COD：800mg/L、BOD：400mg/L，SS：100mg/L，要求处理后的污水达到COD≤100mg/L，BOD≤20mg/L，SS≤70mg/L，符合污水综合排放标准（GB8978-1996）中的一级标准。依据该糖厂的水质水量特点及糖厂废水处理技术现状、排放标准，本处理工程的主体工艺确定氧化沟工艺。工艺流程为：废水格栅调节池出水沉淀池氧化沟生物选择池泵污泥池污泥污泥回流剩余污泥排回厂里沉灰池泵从沉淀池中排出的污泥经过排泥管收集到糖厂内的锅炉沉灰池。采用该工艺总投资为746.39万元，废水处理成本为0.354元。采用氧化沟工艺可有效地保护周边水环境，而且该工艺还有易于管理等优点。关键词：糖厂废水；氧化沟；污水处理ThemethoddesignforSugarfactorywastewaterAbstract:ThisprojectisdesignedforSugarfactorywastewatertreatment.Themaintargetsincludetheprocessingworkshopproductionofwastewaterandsomesugarwatercoolingcycle.Everydayittreatedwastewater14400m3.Thequalityofwaterwhichenterthewastewatertreatmentplantasfollow.COD:800mg/L,BOD5:400mg/L,SS:100mg/L.Theeffluentisexpectedtosatisfytherequirement：COD≤100mg/L,BOD≤20mg/L,SS≤70mg/L,whichreachtoInregratedwastewaterdischargestandard(GB8978-1996)inAstandard.AccordingtothewaterqulityandwatervolumeinthisSugarfactory,withthetreatmenttechniqueconditionsanddischargestandard.wedecidetoadoptOxidationDitchthemaintreatmentprocess.wastewaterlatticeRegulatetankwateroutletsedimentationtankoxidationditchSelectiontankpumpSludgetanksludgesludgerecirculationExcesssludgeblow-downtoPFAtankpumpParticularprocessisasfollow:TheslugewhichdischargedfromthesecondarysedimenttankiscollectedtoSugarfactoryPrecipitationPFAtankbyslugepipe.Thetotalconstructionexpenditureofthisprojectis7.46million,andthecostofthewastewatertreatmentis0.354yuanpercubicmeter.AdoptingtheOxidationDitchcanprotectthewaterenvironmentaroundthearea.Thecharacterofthisprocessiseasytooperateandsoon.Keywords:Sugarfactorywastewater；OxidationDitch；sewagetreatment目录TOC\o"1-3"\h\z\uHYPERLINK\l"_Toc200820433"摘要PAGEREF_Toc200820433\h1HYPERLINK\l"_Toc200820434"Abstract:PAGEREF_Toc200820434\h2HYPERLINK\l"_Toc200820435"第一部分设计说明书PAGEREF_Toc200820435\h5