200931SCIENCE&TECHNOLOGYINFORMATIONCASS(710025)【】,。、、,,。,。,。,,。【】CASS;;;BalanceControlofRestrictiveFactorsForNitrogenandPhosphorusRemovalinCASSAbstact【Abstract】Eutrophicationofthewaterbodyisaworldwideproblem.PhosphorusandnitrogeninthesewageisoneoftheimportantreasonsthatcauseEutrophicationofthereceivingwaterbody.Sewagesludgearecomposedofnitrifying,denitrifying,phosphorusremovalandmanyothermicroorganism.Eachbacteriahasitsownoptimalgrowingenvironments,thereforeitisdifficulttoremovephosphorusandnitrogensimultaneously.Inpractice,thecurrenttechnologiesoftenfailedtoremovephosphorusornitrogen.Actually,therearefactorsthatshouldbetakenintoaccounttomaketheconventionalprocessofbiologicalnitrogenandphosphorusremovaleffectively.Ithasgreatsignificancetoreachacompromisebetweenthephosphorusremovalandnitrogenremoval.【Keywords】CASStechnology;Nitrogenandphosphorusremoval;Restrictivefactors;Balancecontrol,,。,COD、BOD5、SS,,、,,,,、、、、、、。A2O(/),SBR()、、。,CASS,SBR(),、、、,,。CASS、、,,CASS,,,,,,,,。,,,,。,,。,,,,,、、PH,,,。、CASS。1.、、。,,,。NH4++3/2O2NO2-+H2O+H+NO2-+1/2O2NO3-NO3-+2H(-)NO2-+H2ONO2-+3H(-)1/2N2+2H2O+OH-1.1NH3-N。,,,。,BOD5,95%NH3-N。1.2。,NH3-NNO2-N,NO2—NNO3-N。1.3,,。,,、、。,,,BOD5;,NO3-(),,BOD5,NO3-N2。2.,-,,---,,,β(PHB)(Poly—P)。-,,,(),(Poly—P),。,,、,,,,,。BOD,NH3—NN2,,,。,,。。,。3.CASS3.1F/MSRT。,F/M,SRT,,F/MSRT。CASS,,,。,,F/M0.1—0.18kgBOD5/(kgMLVSS·d),SRT8-15d。3.2、。CASS1~2h,○○1120200931SCIENCE&TECHNOLOGYINFORMATION(1165)。3.2,。::(1);(2),;(3),,;(4)。:(1),、;(2);(3);(4),;(5);(6);(7)31;(8)、、。[8]3.3,、,,、。,,,、,。3.4,,6-12。,,,;,,,。,:“”。2000,,,,。【】[1],..,315.[2],,.“———”.,200310,115.[3],[]-..[M].:,2002:66.[4],.[M].:,2000.[5]..,20005.[6].“‘’‘’”.,19892:83.[7],,.———.,200310,115;,.//..200462628:517-524.[8],,..239.//.—..[:]●●6h。3.3rr200%~500%,TKN,。,r300%~500%。,R,NO3—N,,。3.4DOCASSDO0.3mg/L,DO2~3mg/L。2~4h,BOD。,,,,,。3.5BOD5/TKNBOD5/TP,BOD5/TKN4.0,BOD5/TP20。,。BOD5/TKN,。BOD5/TP,。3.6NO3-—N(CASS,、、),NO3-—N,NO3-—N,。,,。NO3-—N1.5mg/L,,,,,。,NO3-—N。,NO3-—N,,。3.7PHCASS,PH。PH=4.0,,PH4.0,,PH8.0,。PH6.5~8.5,,PH=7.3。,PH,PH。PH6.5~8.0,PH6.5,,。3.8、,。CASS,。,,。,。,,,,,,。【】[1],,,.[J].,2000,22(3):189-191.[2],.[J].,2005,25(3):25-27.[3],,,.———()[J].,2002,28(6):6-11.[4],,,.———()[J].,2002,28(7):5-8.[5],.-[J].,2002,28(5):308-310.[6],,..,1999,5(Suppl):68-73.[7]MinoT,vanLoosdrechtMCM,HeijeneJJ.Microbiologyandbiochemistryoftheenhancedbiologicalphosphorusremovalprocess[J].WaterRes.,199832:3193-3207.[8](BIO-DOPP)[J].,2006.[9],,..[10]GordonLCulp,etal.,,..,1982,10.[11],,...[12]...[13],,...:,,,27,。,,,30,。,,,24,。[:]○○●1121