CAST工艺低负荷状态下处理城市污水脱氮模式探析

150Vol.352009CAST(,212001)CAST,,CAST,,,NH3-N90%,TN55%,,,CAST2007,,200811CAST,,NH3N,,,[1],CAST,,,(FZ2008038);(20071015)20m3/d;10m3/d;,12.51415m3/d20036,,NH3NNH3N,CAST,1111,,4#CAST4h,/,1h0133,40%CAST45m30m,6m,,CAST,CAST11,..:,2004.82882.A/OBAF:[].:,20083.BAF:[].:,20064.:[].:,20065.:[].:,20076.:[].:,20057.:[].:,2004&E2mail:[e-mail]:2009210230Vol.3520091511CAST:,MLSS25003500mg/L;DO1mg/L,DO215315mg/L;1215d,MLSS35004500mg/L;DO01mg/L,DO115215mg/L;1420d,1525:CODCr120250mg/L;BOD530100mg/L;NH3N1528mg/L;TN1830mg/L;pH7812112;CASTCODCrBOD5NH3NNO-3NTNTPpHCAST,,20minCODCrBOD5NH3NNO-3NNO-2NTN225,10,15,,,(155,)2323,NH3N,8,NH3NNH3N5116mg/L,74179%,85184%,316%TN,17100mg/L,25185%;47189%,-3158%,NO-3N8102mg/L,13,4,811,,NH3N80%NH3N3161mg/L,79102%,9515%,12197%TN,10136mg/L,51173%,64169%,12188%;NO-3N3184mg/L3311,01030108kgBOD5/(kgMLSSd),MLSS25003500mg/L,1215dDO215315mg/L,40min,,,,,NH3NTN,NH3N,74179%;TN,25185%;,NO-3N8102mg/L152Vol.3520094,,NH3NNO-3NNO-3N,1116mg/LNO-2N,,DO,,4:,NH3NNH3NNO-2N;,,,NO-2NNO-3N,,,NO-2NNO-3N,;,NO-3N,NO-2N,TN,CAST,NH3N,TN,312,,,,:DO;5312115,,NH3N5NO-2N,;DO,NO-2NNO-3N,,DO,NO-2NNO-3N,,,,NO-2NNO-3N,NO-2NNO-3N,,31212:,DO[2]6,,DO,,,,,,65:DO,,;,,01905mg/LVol.3520091532159mg/L,,NH3N,TN,31213,,[3],MLSS35004500mg/L,MLVSS/MLSS55%DO01mg/L,,1152mg/L,210215mg/L,20min,1420d,;DO,,,NO-2NNH3NNO-2N,NO-2N,5:,,;,,3158mg/L,2123mg/L,116,NO-2N2191mg/L,,,,,,CAST,,,;NH3N90%,TN55%,,,,,,;NH3N,NO3-N,TN4(1)CAST,,(2)CAST:1525;01030106kgBOD5/(kgMLSSd);MLSS35004500mg/L,1420d;,DO,NH3N90%,99%;TN55%(3),,,(4),,1Nakhla,GFarooqS.Simultaneousnitrification2denitrificationinslowsandfilters.JournalofHazardousMaterials,2003,96(223):2913032,,...2007,21(4):16223,,,..().2009,32(2):159165&:[phone]E2mail:[e-mail]:2009206230:2009211230