新型外循环厌氧反应器污泥沉降的数值模拟_周雪飞

　第60卷　第3期　　化　工　学　报　　　　　　　Vol.60　No.3　2009年3月　　CIESC　Journal　　　March　2009研究简报新型外循环厌氧反应器污泥沉降的数值模拟周雪飞,张亚雷,张选军,蒋　明(同济大学污染控制与资源化国家重点实验室,上海200092)关键词:新型外循环厌氧反应器;弥散模型;分离效率;污泥层高度;数值模拟中图分类号:X524　　　　　　文献标识码:A文章编号:0438-1157(2009)03-0738-06SimulationofsludgesettlingpropertyinanoveloutsidecycleanaerobicreactorZHOUXuefei,ZHANGYalei,ZHANGXuanjun,JIANGMing(StateKeyLaboratoryofPollutionControlandResourceReuse,TongjiUniversity,Shanghai200092,China)Abstract:Anoveloutsidecycleanaerobicreactorwasdevelopedbasedonthecharacteristicsofexpandedgranularsludgebed(EGSB)andotheranaerobicreactors.Itwasdemonstratedthatthesludgewash-offathighliquidupflowvelocitiescouldbecontrolledefficientlyandgoodperformancewasachievedduringmunicipalwastewatertreatment.Inordertoachieveaccuratepredictionandeffectivecontrolofsludgesettlingpropertyinthereactordeveloped,adispersionmodelwasestablishedonthebasisofmassbalanceandfreesettlingtheoryofgranularsludge,takingconsiderationoftherelevancebetweensludgesettlingvelocityandsludgeconcent