EGSB反应器处理含氯苯有机废水的试验研究王妍春

EGSB,,(,　100084):,,;,EGSB.,;,100mg/L.,10～50mg/L,657mg/L,66d25mg/L,,3.4～38.32mg/L,,.:EGSB;;:X703.1　:A　:0250-3301(2003)02-05-0116:;:(1972～),,.:2002-04-12;:2002-06-04ExperimentalStudyontheTreatmentofOrganicWastewaterContainingChlorobenzenebyUsinganEGSBReactorWangYanchun,ZuoJiane,XiaoJinghua(DepartmentofEnvironmentalScienceandEngineering,TsinghuaUni-versity,Beijing100084,China)Abstract:Inthispaper,thestudyontheinhibitionandrecoveryofthemethanogenicactivityofthegranularsludgewhichuncontactedandcontactedwithchlorobenzenecausedbychlorobenzene,andthestudyofthetreatmentoforganicwastewatercontainingchlorobenzenebyusinganEGSBreactorwereconducted.Theresultsshowedthattheactivityofthegranularsludgewhichhadnotcontactedwithchlorobenzenewouldbeinhibitedbydifferentconcentrationschlorobenzene;butforthegranularsludgewhichhadcontactedwithchlorobenzene,itsactivitywouldbeinhibitedonlybyhigherconcentration(100mg/L)chlorobenzene.UsingEGSBreactortotreatorganicwastewatercontainingchlorobenzene,whentheinfluentchlorobenzeneconcentrationwasabout10～50mg/L,theeffluentconcentrationwaslowerthan7mg/Lbefore65days,butafterthe66thday,theeffluentconcentrationsuddenlyreachedabove25mg/L,andafterstoppingaddingchlorobenzene,theeffluentchlorobenzeneconcentrationwasbetween3.4～38.32mg/L,thisshowedthatthehighchlorobenzeneremovalefficiencywasmainlyduetothestrongadsorptionbygranularsludge,andthebiologicaldegradationofchlorobenzenewasnotobvious.Keywords:EGSBreactor;granularsludge;treatmentoforganicwastewatercontainingchlorobenzene　　、,、、[1].,.(chlorobenzene,CB),[2～6],.CBCB,EGSBCB,CBCB.1　、1.1　(1)　1,(35±1℃),2mol/LNaOHNaCl.(2)　,224220033　　　　　　ENVIRONMENTALSCIENCEVol.24,No.2Mar.,2003DOI:10.13227/j.hjkx.2003.02.023[7],、,,CB.1　Fig.1　Equipmentsforbatchexperiment1.2.3.4.5.6.EGSB7.8.9.10.11.2　Fig.2　Equipmentsandprocessflowchartforcontinuousexperiment1.2　(1)　,,COD5000mg/L,COD∶N∶P=200∶5∶1,0、10、50、100mg/L,NaHCO3pH7.2.(2)　,COD∶N∶P=200∶5∶1、,、,Na2CO3pH6.8～7.2.1.3　CBEGSB[8],CB67dEGSB,EGSBUASB[7].1.4　COD:TL-1ACOD;pH:TPX-90ipH;(SS)(VSS):[9];CB:,:1490GC();:2m×2mm,10%TS-101(OV-101)(),TS-800,80～100;:150℃;:180℃;:180℃;:,40mL,10mL,70℃,30min.2　2.1　CBCB4d,1d3d,34.1,,CB;3d,1,,CB.(1)2g/L　3(VSS)2g/L,CB4d.,1,CB,,CB,.2,10mg/LCB;50mg/LCB,,2,CB;100mg/LCB,1CB.1172　　　　　　32,100mg/LCB.4100mg/LCB.3　CBCB(2g/L)Fig.3　InhibitionandrecoveryofCBtothemethanogenicactivityofgranularsludgeuncontactedwithCB(sludgeconcentrationwas2g/LVSS)　　(2)6g/L　46g/L,CB4d.,1,10mg/LCB,50mg/LCB,100mg/LCB.,CB.3d,100mg/LCB.4　CBCB(6g/L)Fig.4　InhibitionandrecoveryofCBtothemethanogenicactivityofgranularsludgeuncontaotedwithCB(sludgeconcentrationwas6g/L)(3)　2,:①2g/L6g/L,CB,CB,;,;②CB,110mg/L50mg/LCB,;100mg/LCB,3.2.2　EGSBCB,CBCB,CB,.229dEGSBCB,,CBEGSB,CB.CB70d,CB10mg/L50mg/L,CB5.5　CBCB(CB)Fig.5　PerformanceofEGSBreactortreatingorganicwastewatercontainingCB8,CB8.86mg/L,CB0.4mg/L,94%.,7.26L/d,18.5∶1.,9CB30mg/L.9d,CB32.2mg/L,.118　　　　　　24CB,,CB0.66mg/L.,16CB50mg/L.70,CB50mg/L,56.24mg/L,.32,CB,0.54mg/L,98%,99%,(2m),CB,50,,CB6.71mg/L.CB,CB,86.3%.65,CB,86%.66,CB27.62mg/L,5,CB25mg/L,,COD,,.CB,71,(CB).71,CB,,139,CB.93,,;97,,;,.7196,7.74L/d;97,15.9L/d.,CB.6CBCB,,CB,38.32mg/L,3.4mg/L.,,,CB,CB;,CB.,EGSBCB,.CB,CB,CB;,CB.CB,,CB;,,CB.6　CB(CB)Fig.6　EffluentCBconcentrationofEGSBreactorduringrecoveryoperation2.3　CBCB2.1,4d,13d,78.7　CBCB(2g/L)Fig.7　InhibitionandrecoveryofCBtothemethanogenicactivityofgranularsludgecontactedwithCB(sludgeconcentrationwas2g/LVSS)(1)2g/L　72g/L.,10mg/L50mg/LCB1192　　　　　　,,CB;100mg/LCB,2,,22.25h18.5mL,CB29.9mL,.8　CBCB(6g/L)Fig.8　InhibitionandrecoveryofCBtothemethanogenicactivityofgranularsludgecontactedwithCB(sludgeconcentrationwas6g/LVSS)34,100mg/LCB.,CB,100mg/LCB,.(2)6g/L　8,6g/L,10mg/L50mg/LCB,CB,,.100mg/LCB,;2g/L,,100mg/LCB,3,.(3)　2:①CB,10mg/L50mg/LCB,100mg/LCB;②CB,110mg/L50mg/LCB;100mg/LCB,,,.,CB67d,EGSBCB.3　(1)CB,CB,,;10mg/L50mg/LCB,,100mg/LCB,;(2),EGSB,,CBCB;(3)CB67d,EGSBCB,(10mg/L50mg/L)CB,100mg/LCB,CB.:1　.().:,1989.1019～1024.2　..,1996,16(5):484～489.3　Bhattacharyaetal.FateofselectedRCRAcompoundsinapilot-scaleactivatedsludgesystem.Wat.Envir.Res.,1996,68:260～269.4　XuFeiWuetal.Removaloforganochlorinecompoundsinanupflowflocculatedalgaephotobioreactor.Wat.Sci.Tech.,1991,24(5):221～232.5　Narayananetal.Anaerobictreatmentofvolatileandsemivolatileorganiccompoundsinmunicipalwastewater.WaterEnvironmentResearch,1995,67(1):46～56.6　Narayananetal.TreatmentofVOCsinhighstrengthwastesusingananaerobicexpanded-bedGACreactor.Wat.Res.,1993,27(1):181～194.7　,,.EGSB.,2001,27(3):26～30.8　,.(EGSB).,2001,19(2):8～11.9　.().:,1997.107～108.120　　　　　　24