44Vol.33No.122007()(,200540)2(SV30)2.1SV3030min,,,SV30,,SV3015%30%,SV30,,SV30,SV30,,,,,,,SV3030minSV30,SV3030min,,,,SV30,,,,,,SV30,5min,SV5(5min)30min,,,SV301000mL(),100mL,,,,,1000mL100mL,:,(5%10%),,40%,,SV302.2SV30SV30,SV30,SV30,SV30,,,,,,,:,;,Vol.33No.12200745,,,:;,,,2.3()(1),,:,,,,(2),,:,,,,,,,,(3),,:,,,,,(4),,:,,(5),():,,(6),,:(7),:,,2.4SV30,,:(1)SV30,(2)(3),,,,,,,,,3(MLSS)3.1(MLSS)MLSSMLSS,(MLVSS),,,,MLSSMLVSS,MLSS,MLVSS/MLSS,,,MLVSS/MLSS,,3.2MLSS()MLSS,46Vol.33No.122007,,,MLSSMLSS:;,MLSS,;,,MLSS,MLSS,MLSS,,MLSS,MLSSA():,,,,,,,(),A,,B,,,,:,,,3.3,MLSS,MLSS,,,,,,,:,,MLSS;,,MLSS;,;,MLSS,,,,:,;,,,,MLSS,,,,,,,,,,,,,,3.4MLSS,,MLVSS/MLSS,,,Vol.33No.12200747MLSS,MLVSS/MLSS,,,:,,,,DO,MLSS,,,,MLSS,MLSS,,MLSS,MLSS44.1(RAS),,,(1)ESS,,RAS,(2)RAS=QMLVSSVSSR-MLVSS(1)Q,m3/d;VSSR,mg/L(1),Q,RAS;VSSR,SVI,RAS(3)RAS=QSV100-SV(2)(2),SV,RAS(4)(SVI)(r),(3)MLVSS=1SVI1.2r1+r(3)SVIMLVSSr??,,,,,,,,:,,,,,,,,,,,,,,,,,,,,4.2,,,,48Vol.33No.122007,?,,(),,,,,,,,,,,5(F/M)5.1F/M,,BOD5(FBOD5,MMLSS)(4),=MLSSF/M=BOD5Q(4)Q,m3/dBOD5,CODCrBOD5,,BOD/CODBOD5,BOD5BOD5:FBOD5,;FBOD5,,,5.2,,,,,,,,,,,,,(BOD5CODCr),,F/M0.10.5kgBOD5/(kgMLSSd),F/M0.1kgBOD5/(kgMLSSd)F/M,,,BOD5,BOD55,,,BOD5TOCMLSS,5.3,,,,,MLSS,,MLSS,,,,,,Vol.33No.12200749,,,,,,,,COD,,,,6(MCRT)6.1(MCRT,MeanCellRetentionTime)1970MCRT,(5)MCRT=QWAS+Qe(5)(5),,1/MCRT,?,,,,,,6.2,:,,,,;,,,,,515d,,,MCRTA/O,,,MCRT,,MCRT,6.3,()1,..:,20032,.().:,2005&:20054091EOmail:rzming7@163.com:2007-05-21:2007-07-05,2,3,,,,,,15114,,,