六圩污水处理厂二期工程的工艺设计与调试运行_严俊泉

六圩污水处理厂二期工程的工艺设计与调试运行严俊泉，张颖，仲巍巍(扬州市洁源排水有限公司，江苏扬州225000)摘要:六圩污水处理厂二期工程属于国家“三河三湖”中淮河流域水污染防治规划工程，采用了改良型A2/O工艺。在调试运行中，进水水质波动较大，多次出现进水TN浓度异常升高现象，经试验，最终采取了投加碳源的措施，保证了出水水质达到《城镇污水处理厂污染物排放标准》(GB18918—2002)的一级A标准，对保护长江水质起到了积极作用。关键词:改良型A2/O工艺;多点进水;外加碳源;脱氮中图分类号:X703文献标识码:C文章编号:1000－4602(2011)16－0047－06ProcessDesignandCommissioningOperationofSecond-phaseProjectofLiuweiWWTPYANJun-quan，ZHANGYing，ZHONGWei-wei(YangzhouJieyuanDrainageCo．Ltd．，Yangzhou225000，China)Abstract:Second-phaseprojectofLiuweiWWTPisawaterpollutioncontrolplanningprojectofHuaihewatershedinthenational“ThreeRiversandThreeLakes”project．TheprojectusesamodifiedA2/Oprocess．TheinfluentqualityfluctuatedduringthecommissioningperiodandTNconcentrationwasabnormallyhighseveraltimes．Throughtheexperiment，themeasureofdosingexternalcarbonsourcewasdeterminedtobeusedtoensuretheeffluenttomeetthefirstlevelAcriteriaspecifiedinDischargeStand-ardofPollutantsforMunicipalWastewaterTreatmentPlant(GB18918－2002)，whichplaysapositiveroleintheYangtzeRiverwaterprot