UASB反应器处理CODSO4205有机废水试验陈浩

UASBCOD/SO42-=0.5陈　浩,陆正禹(清华大学环境科学与工程系,北京　100084)　　:UASBCOD/SO42-=0.5(35±1℃)。:(1)UASBCOD/SO42-=0.5,CODSO42-(ΔCOD/ΔSO42-)1.0。CODSO42-1.036g/L/d2.086g/L/d,70%30%;CODSO42-2.489g/L/d4.977g/L/d,50%30%。(2),。(3)300mg/L,129mg/L。:;;UASB:X703.1　　:A　　:1002-1264(1999)04-0015-04　　,。,()、,,COD/SO42-=0.2-1。,(SulfateReducingBac-teria,SRB),:,(MethaneProducingBacteria,MPB),,,;,—(H2S),,。。1995[1],、,,(ColorlessSulfurBacteria);,、,,。COD∶SO42-=1∶2。1　、1.1　1.1.1　UASB,35±1℃。1。1　UASA(mm)(mm)(L)(L)(L)70()13203.51.55.0100()1.1.2　UASBCOD∶SO42-=4000:800028,VSS=27.7g/L、SS=57.3g/L、VSS/SS=0.47。8.3gVSS/L。1.1.3　(Na2SO4K2SO4)。COD∶N∶P=200∶5∶1。Na2CO3pH,pH6.8-7.2。1.1.4　[2]COD:;pH:pHC-3;(SS)(VSS):;(SO42-):;:1512419998URBANENVIRONMENT&URBANECOLOGYVol12,No.4Aug.　1999:1999-06-11。COD。1.2　(COD/SO42-=500∶1000mg/L),COD70%,。COD=2000mg/L,SO42-=4000mg/L。(Q)、COD、、。pH。:(COD/SO42-=500∶1000mg/L)COD=500mg/L,SO42-=1000mg/L,q=0.043m3/m2/h,0.17L/h,HRT=30h。CODSO42-0.44kg/m3/d0.88kg/m3/d,COD67%,30%,ΔCOD/ΔSO42-=1。CO2H2S,,。300mg/L,50mg/L(H2S16mg/L)。　　(COD/SO42-=1000∶2000mg/L)。q=0.06m3/m2/h,0.23L/hHRT=22h。CODSO42-1.04kg/m3/d2.19kg/m3/d,COD69%,SO42-34%,,ΔCOD/ΔSO42-1。0,CO2H2S。,680mg/L,130mg/L(47mg/L)。　　(COD/SO42-=2000∶4000mg/L)。,q=0.067m3/m2/h,Q=0.26L/h,HRT=19.6h。CODSO42-2.49kg/m3/d4.98kg/m3/d,COD,52%,35%,。ΔCOD/ΔSO42-0.84。0,CO2H2S。1400mg/L,327mg/L(235mg/L),396mg/L。80,VSS=12.9g/L、SS=24.7g/L、VSS/SS=0.52。2　2.1　CODSO42-(ΔCOD/ΔSO42-)1。1　ΔCOD/ΔSO42-1ΔCOD/ΔSO42-1.0。1COD(0.678),,COD。2.2　,。,,,H2S、HS-、S2-。。2。,COD0.44kg/m3/d、1.04kg/m3/d、2.49kg/m3/d(0.88kg/m3/d、2.18kg/m3/d、4.98kg/m3/d),59.7%、69.2%97.5%。,,,。,。,,,。2.3　COD/SO42-=0.5CODSO42-16　　　124　19992　CODkg/m3/dSO42-mg/LSO42-%mg/LpHmg/Lmg/Lmg/L0.4381000303007.15017.79.71.0362000346807.013049.326.92.48940003514006.4327234.6128.2　　:(1);(2)H2S[1]:f=11+k110-pH　K1=1.49×10-7(35℃);　　[H2S]()=α[H2S]()α=1.83(35℃)[1]。,CODSO42-1.04kg/m3/d2.09kg/m3/d,70%30%;CODSO42-2.49kg/m3/d4.98kg/m3/d,50%30%。UASBCOD。,COD,,,。2.4　VSS=8.3g/L,SS=20g/L,VSS/SS=0.47;VSS=12.9g/L,SS=24.7g/L,VSS/SS=0.52,,VSS,,10%。,,,。[1],COD/SO42-,,,。。2.5　CODCOD2。,,50mg/L,130mg/L,;COD70%。,COD=2000mg/L、SO42-=4000mg/L,COD=2.49kg/m3/d、SO42-=4.98kg/m3/d,300mg/L(129mg/L),COD70%50%。SO42-30%,ΔCOD/ΔSO42-10.84,300mg/L,,COD。2　,,300mg/L,4000mg/L(1400mg/L)。UASBCOD/SO42-=5∶1。3　,:(1)UASBCOD/SO42-=0.5。CODSO42-1.04kg/m3/d2.09kg/m3/d,70%30%。(2)COD/SO42-=0.5,UASB,。COD。CODCO2H2O,H2SH2O;,。17　UASBCOD/SO42-=0.5　　,。(3)78,,,。,。(4)COD/SO42-=1∶2,300mg/L。COD=2000mg/L,SO42-=4000mg/L,CODSO42-2.489mg/L/d4.977mg/L/d,300mg/L,。[1]　.,,1995[2]　《》..1992:　,1974,,1。ExperimentalStudyonTreatingSyntheticOrganicWastewaterwithCOD/SO42-=0.5byUsingUASBReatorCHENHao,LUZheng-yu(EnvironmentalScienceandEngineeringDepartment,TsinghuaUniversity,Beijing100084)Abstract:AsystematicstudywasconductedontreatingthesyntheticwastewaterwhereCOD/SO42-isabout0.5byusingUASBreactorwithcontinuousoperation.Experimentalresultsshowedthat:(1)TheUASBreactorcouldeffec-tivelytreatthesyntheticorganicwastewaterthatCOD/SO42-isabout0.5,theratioofCODremovalloadingratetoSO42-removalloadingrate(ΔCOD/ΔSO42-)ofthewastewaterwasabout1.0;(2)ItwasshowedtheoreticallythatthesuperiorbacteriainthesludgeofthisUASBreactorweresulfateReducingBacteria(SRB)andFermentativeBac-teria(FB)withfewofMethaneProducingBacteria(MPB);(3)ThesulfideconcentrationinthisUASBreactorwas300mg/L,andtherelevanthydrogensulfideconcentrationwas129mg/L.Keywords:sulfate-organicwastewater;　sulfatereduction;　UASBreactor　　　　　,、、、,(),。AbfallKalender(),1-12、,。,。(),。,,。、,,。,,,;、、,;,,。,,,。。、、();,、、,,、(),,,,(),,,,,,,。,、,,。,,,,。,,。、,,。。(何立达)18　　　124　1999