ABR反应器中CODSO4省略酸盐负荷对SO42去除影响仉丽娟

1[1]。[2-3]SO42-H2SH2SSO42-[24-5]。H2S[2]COD/SO42-、、《》[e-mail]*[e-mail]。EnvironmentalScience&Technology36120131Vol.36No.1Jan.2013ABRCOD/SO42-SO42-仉丽娟，李莹，周洪波*410083COD/SO42-SO42-。32±0.1℃pH6.0~6.5。ABR90dCOD1500mg/L3000mg/L12h92%。COD/SO42-2.5SO42-1500~3500mg/LSO42-60%SO42-7.98kg/m3·d1500mg/LSO42-6hSO42-COD/SO42-。COD/SO42-X703.1Adoi10.3969/j.issn.1003-6504.2013.01.0261003-6504(2013)01-0115-05EffectsofCOD/SO42-RatioandSulfateLoadingRateonSulfateRemovalinAnaerobicBaffleReactorZHANGLi-juanLIYingZHOUHong-bo*KeyLaboratoryofBiometallurgyofMinistryofEducationSchoolofMineralsProcessingandBioengineeringCentralSouthUniversityChangsha410083ChinaAbstractStart-upperiodandeffectsofdifferentCOD/SO42-ratiosandsulfateloadingratesonsulfateremovalofsimulatedwastewatercontaininghighsulfateconcentrationwereassessedat32±0.1℃andpH6.0~6.5inalaboratoryscaleanaerobicbaffledreactorABR.Resultsshowedthatthefinalsulfateremovalefficiencyroseto92%withinfluentSO42-1500mg/LandCOD3000mg/LHRT12hthroughtheprocedureofabout90dstat-up.WithfixedCOD/SO42-ratioas2.5sulfateremovalefficienciesallabove60%reducedwithanincreaseintheinfluentsulfateconcentrationrangingfrom1500mg/Lto3500mg/Lyetremovalrateofsulfateincreasedtothemaximum7.98kg/m3·d.Withfixedinfluentsulfateconcentration1500mg/LhydraulicretentiontimeHRThadacomplexeffectonsulfateremovalandsulfateremovalefficienciespeakedwhenHRTwas6hregardlessofCOD/SO42-ratios.Withanup-regulationofCOD/SO42-ratiorangingfrom2to5removalefficienciesofsulfateascendedandthesystempresentedstrongertolerancetothesulfateloadingrate.KeywordsanaerobicbafflereactorCOD/SO42-sulfateloadingratesulfateremoval36[16-7]ABRABRCOD/SO42-SO42-[8-9]。ABR。ABR、CODSO42-COD/SO42-SO42-。11.1实验装置ABR1。、、260mm、96mm、105mm2.6L2L。445°ABR[10]。32±0.1°C。HL-2SABR2×0.5～600cm3/h。1.2接种污泥及模拟硫酸盐废水ABR4。。NH4Cl、K2HPO4COD：N：P＝500：5：1。pH6.0~6.5。Na2SO4CODSO42-。1.3实验过程1.3.1ABRABRABRABRBarber[11]1。1.3.2ABRCOD/SO42-ABR。。1.4分析项目及方法CODSO42-pHpHLeiciPHS-3C《》[12]。22.1ABR反应器启动驯化阶段13。COD/SO42-[11]。2a120dCOD81%91%。121。COD2a2。68%24d89%12ABR。COD。1ABRTable1Start-upandacclimatizationstrategyforABR/dCOD/SO42-SO42-/mg·L－1COD/mg·L－1HRT/h/kg·m－3·d－110~2446763000480.34224~48215003000480.75348~5621500300034157~64215003000261.565~7221500300020273~80215003000142.581~882150030001231ABR3SO42-。HRT34h12h1。2b。ABR。2b1.0kg/m3·d3.0kg/m3·dSO42-82%92%。ABR90dCOD1500mg/L3000mg/L12h92%。2.2增加进水硫酸盐浓度对反应器运行的影响12h6h2。2~3dCOD、SO42-。SO42-COD33。3SO42-。1500mg/L2500mg/LSO42-SRE70%~90%3500mg/LSO42-60%H2S[13]。3SRR。3500mg/L7.98kg/m3·d。SO42-Bayrakdar[8]。3CODCODremovalefficiencyCOD90%。CODCODremovalrate3。33ABRCODSO42-ABR[14]。SO42-CODABRHRT6hCOD/SO42-2.5。2.3不同COD/SO42-比值下不同水力停留时间（HRT）对硫酸盐去除的影响“2.2”2Table2VariationsofinfluentsulfateconcentrationwithfixedHRT6handCOD/SO42-ratioas2.5/mg·L-1COD/mg·L-1/kg·m-3·d－11500370062000500082500620010300075001235008750143SO42-CODTable3EffectsofdifferentinfluentsulfateconcentrationsonsulfateandCODremovalratewithfixedCOD/SO42-ratioandHRT(kg/(m3·d))68101214SO42-5.226.567.17.687.98COD14.55192327.931.15ABRCOD/SO42-SO42-36。SO42-1500mg/LCODCOD/SO42-2345HRT4。4COD/SO42-SO42-COD/SO42-23456kg/m3·d。4kg/m3·d≤≤6kg/m3·dSO42-。ABR[15]。≥6kg/m3·d80%pHH2S[2]。5SO42-SO42-。45SO42-COD/SO42-COD/SO42-SO42-。Ren[16]COD/SO42-SO42-[17]。45SO42-COD/SO42-COD/SO42-345。COD/SO42-0.67HRTCOD/SO42-2HRTSO42-。31ABR。2COD/SO42-2.5。36h。4COD/SO42-。COD/SO42-。[][1]LensPVallerolMEspositoGetal.Perspectivesofsul－fatereducingbioreactorsinenvironmentalbiotechnology[J].ReviewsinEnvironmentalScienceandBiotechnology,200214311-325.[2]SheoranASheoranVChoudharyR.Bioremediationofacid-rockdrainagebysulphate-reducingprokaryotesareview[J].MineralsEngineering201023141073-1100.[3]JohnsonDHallbergK.Acidminedrainageremediationoptions[J].ScienceoftheTotalEnvironment20053383-14.[4]SartiAPozziEChinaliaFetal.Microbialprocessesand44COD/SO42-SO42-Table4ExperimentaldesignforeffectsofHRTwithdifferentCOD/SO42-ratiosonthesulfateremoval/h/kg·m-3·d－1947.25665.174.58493.6105COD/SO42-HRTTable5EffectsofdifferentHRTonsulfateremovalrateunderdifferentCOD/SO42-(kg/(m3·d))*sulfateloadingrate**sulfateremovalrate。SLR*45678910SRR**(COD/SO42-=2)3.364.255.336.166.867.277.69SRR(COD/SO42-=3)3.544.555.616.37.17.568SRR(COD/SO42-=4)3.64.65.76.377.17.728.4SRR(COD/SO42-=5)3.684.655.616.447.27.998.581（上接第64页）XuHongZhangJunLiuChen-li,etal.Isolationcharac－terizationanddeterminationofdegradingcapacity[J].Ma－rineEnvironmentalScience,200423361-64.inChinese[8].[J].200525S102-105.XiJin-yingHuHong-yingZhuHong-bo,etal.Effectsofaddinginertspheresintothefilterbedontheperfor－manceofbiofiltersforgaseoustolueneremoval[J].ChinaEnvironmentalScience200525S102-105.inChinese[9].[J].:2005(4)136-142.LiShu-binChenZhen-jun.Researchadvancesinmicro-biodegradationofcompoundofphenols[J].JournalofSouthChinaNormalUniversity:NaturalScienceEdition,2005(4)136-142.inChinese[10].[J].200815154-57.YangHai-yangLiYiHuHong-ying,etal.Bioremedia－tionofnitrobenzene-contaminatedriverwaterusingPseu－domonasputida[J].SafetyandEnvironmentalEngineering2008,15154-57.i