50m3h-1300m3h-1pH381300m3h-1GB89781996122.131233+1+2CASS+BAF3+12.21CASS+BAF12111.2660712.266071CASS+BAFGB89781996CASSBAFX742B1000-3770(2010)02-0126-032009-04-20197913687640883E-mailzhangtiegang@cnpcedi.cn1Tab.1CharacteristicsofwastewaterandemissionstandardCOD/mgL-1BOD5/mgL-1(SS)/mgL-1()/mgL-1()/mgL-1()/mgL-1()/mgL-1pH80014006030040020501007060012005608015301500.569691Fig.1Flowchartofwastewatertreatment??????????!#$%#?????&?'?()012&?3?(&?(#4?56?(?????789((#4#4???????@(9A89??BCDE????FG8???????(??36220102TECHNOLOGYOFWATERTREATMENTVol.36No.2Feb.,201012638h200mgL-122h60mgL-13112030mgL-142230%40%0.4MPa1020mgL-15Na2CO3pH6CASSCASSCyclicactivatedsludgesystemCASSSBRCASS4CASSCASSCASS4BOD50.13kgkgMLSS-1d-1COD0.24kgkgMLSS-1d-1CASS[1]7BAFBiologicalaeratedfilterBAFBAFBAF[2][3]BAFBAF43.0mNH3-N1.18kgm-3d-1COD0.89kgm-3d-1BOD50.31kgm-3d-11.84mh-120mh-19mh-140mh-1BAF35minBAFGB8978199618380%2.323CODCASS+BAF1271++1+21020mgL-12CASSCASS3BAFCASSBAF42008200944154303GB89781996519800m22170440kW0.65kWh-10.95m-30.28m-3200.24m-31.47m-36CODCASS+BAFGB89781996[1],.CASS[J].,2004,24(4):7-10.[2],,,.BAF[J].,2004,27(2):84-86.[3],,,.[J].,2006,24(1):9-13.2Tab.2SpecificationofmainstructuresLBH/m/m312CASSBAF12423241411210.06.05.5H19.011.525.04.53.013.52.412.512.783.72.310.013.06.050.012.06.010.010.04.07.07.06.07.07.06.05.05.03.0H3.27.61503000300150100600300035015035010040APPLICATIONOFCASSANDBAFFORREFINERYWASTEWATERTREATMENTZhangTiegang1,SuiXuying2,SuShengjian1,GuoPinting11.CNPCEastChinaDesignInstitute,Qingdao266071,China;2.QingdaoXiangyuanMunicipalDesignCo.Ltd.,Qingdao266071,ChinaAbstract:Thehighoilywastewaterfromrefineryisdifficulttobetreated.BydesignofwastewatertreatmentinsomerefineryinShandong,itisindicat-edthatCASSandBAFtechnologycanassuretheeffluentwaterreachesthefirstgradestandardofthesecondkindpollutantofcomprehensiveeffluentdischarge(GB89781996),whichsuppliesanewapproachtowastewatertreatmentinsimilarpetroleumrefinery.Keywords:oilywastewater;hydrolysisacidification;CASS;BAF;wastewatertreatment3Tab.3WaterqualityeffluentstandardCOD/mgL-1BOD5/mgL-1(SS)/mgL-1()/mgL-1()/mgL-1()/mgL-1()/mgL-1pH50605.5202070350.98150.310.20.56969362128