CAST工艺在城市污水处理中的应用研究郝轶鹏

CAST,(,150009)CAST,,,B,CODBOD90%,NH3-N84%,;;CAST;TU9923A1001-6864(2009)11-0110-03THEAPPLICATIONOFCASTINMUNICIPALWASTEWATERTREATMENTHAOY-ipeng,DUYan-wu(InstituteofArchitecturalDesignandResearch,HarbinInstituteofTechnology,Harbin150090,China)Abstract:ThestudyonthetreatmentofMunicipalwastewaterinthenortheastofchinabyCASTshowedthatreliableandstabletreatmentresultscouldbeachieved.Duringtheadjusting,thebio-systemwasinahighperformanceintheseasonwithbothnormalinlettemperatureandlowertemperature.Duringtheexper-iment,theremovalofCOD,BOD,TheremovalefficiencyofNH3-Nhigherthan84%.Thequalityoftheef-fluentisfulfillthestandardinasteadystate.theeffluentcanfulfillthenationalstandardfortheclasswastewatereffluent.Thesystemhasstrongcapacitytotreatthewaterwithsuddenlychangedquality.Keywords:coldarea;wastewatertreatment;CAST;designingparametersCAST,SBRICEAS[1]1914AdermLockett,1984CASS,,400CAST[2-3]CAST[4-8],CAST,40(6~10,4~6),,CAST,,,BODCAST,CASTMLSS1,1302208,464835104(183d),-30,11,13,,6104m3d,135,094m3sCAST:CAST,CODBODNH3-N1CAST013kgBOD5kgMLSSd,4000mgL,215d8CAST,2,515m110200911(137)216m,585m,50m,31mCAST6hCAST21mgL-1mgL-1%COD3501007143BOD5160208750(N)351557142CAST40510201015605021014101248,,,,5~6m,,,22.1,,,5,,,,,,,;,,,,,;;CAST;:DO2~3mgL,16h,20%,,4500~5500mgL2.2,1,,CASTCAST,[9]2.31,1,131~113,,111:CAST,CAST08,70386m3d2,COD146~293mgL,COD2294mgL,COD,226mgLCOD(117~23),,COD11~36mgLCOD902%3,BOD447~181mgL,BOD963mgL,BOD25~120mgL,62mgLBOD935%CODBOD(2,3),,BODCOD019~067,041,,COD,4,NH3-N163~338mgL,235mgL,NH3-N02~104mgL,37mgL844%,,,,,COD,,,CODBODNH3-N3,:(1)CAST,COD230mgLBOD5100mgLNH3-N235mgL,,,-30113,MLSS4500~5000mgL,B(2),,,MLSS5000mgL[1],.[M].:,2004:57-65.[2]ZhangL,JiaJ,ZhuY.Electro-chemicallyimprovedbio-degradationofmunicipalsewage[J].BiochemicalEngineeringJournal,2005,22(3):239-244.[3]ShinHK,Polprasert.Ammonianitrogenremovalfromattached-growthprocess[J].EnvironmentalEngineering,1998,114:846-863.[4].CAST[J].,2006,19(A01):34-36.[5],,.SBR[J].,2007,29(2):14-17.[6],,.CAST[J].,2007,23(4):61-64.[7],.CAST[J].,2006,35(5):28-30.[8],.[J].,2003,23(5):5-8.[]2009-09-07[](1975-),,,,:()(),:112200911(137)