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,(,030032):、、,EGSB“”,EGSB,、、,,EGSB。:EGSB;;;:X703.1:A:2096-191X(2016)04-0027-04DOI:10.14152/j.cnki.2096-191X.2016.04.0091EGSB,,,BOD/COD0.5~0.6,CODCr2000~4000mg/L[1],“”,、,(VFA)、CO2,、CH4CO2。(VFA),VFA,VFA,VFA,[2]。“”;pH,VFA,VFA;COD;,;;,[3]。EGSB,,,(、、)“”,EGSB。22.1,、、,NH4Cl、NiCl2·6H2O、CoCl2·6H2O、KH2PO4、FeCl2·4H2O、Na2S·9H2O,COD∶N∶P=100∶5∶1;S∶P=1∶2;Fe2+∶Co2+∶Ni2+=10∶1∶2;S∶Fe2+=3∶1[4]。2.2(MLVSS/MLSS0.5),2/3,30d,COD92.3%,3m/h。2.31,18L,16∶1,90mm,60cm,,(35±1)℃;,,:2016 ̄11 ̄07:2015(20150313002-1):(1988-),,,,,:。344201612Vol.34No.4Dec.201627--2016420164。,10%CO2H2S,。EGSBMariotte10%NaOH1EGSB2.4COD;pH;(VFA)[5]。33.1“”48L/d,,COD2000mg/L,8kgCOD/(m3·d),COD151mg/L。1,,12kgCOD/(m3·d),pH,,。1EGSBpH7:0010:0013:0016:0019:0022:000mpH0.6mpH1.2mpH1.8mpH2.4mpH6.496.526.596.646.676.286.496.556.586.616.336.326.376.546.586.066.126.386.416.496.065.996.196.366.466.126.256.336.376.41,,,,VFA,,,VFA。“”:pH,6.5~7.5[6],VFA(、),,,。,,“”,。VFA,pH,。,NaHCO3、NaOH、Ca(OH)2、Na2CO3,NaOHCa(OH)2,pH,CO2,,,NaHCO3。,,,,,,。,,,,。,pH,,2,EGSBCODCr2000mg/L,CODCr518mg/L159mg/L,92%,。,pH7.2~7.3,,,,pH6.8~7.0,pH[7]。7:0010:0013:0016:0019:0022:000mpH0.6mpH1.2mpH1.8mpH2.4mpH6.586.586.666.686.996.506.496.606.697.046.486.576.686.837.056.536.726.856.967.096.756.826.997.087.196.816.976.967.147.282pH3.2“”,EGSB,(ALK)500~2500mg/L(CaCO3),VFAALK,“”[8]。2,,(、、)VFA/ALK,CODCr,:EGSB28--34121341212000mg/L,48L/d,35℃,Fe2+,Co2+,Ni2+2mg/L,0.2mg/L,0.4mg/L,VFA/ALK1.9,(VFA/ALK0.3)[9]。:、、,,1~3mg/g,F430;[7]61,,,VFA,,VFAALK。Fe2+,Co2+,Ni2+6.5mg/L,0.65mg/L,1.3mg/L,VFA/ALK5.6,“”,,,。2,c(Fe2+)3.5mg/L,c(Co2+)0.35mg/L,c(Ni2+)0.7mg/L,VFA/ALK0.19。“”:,,c(Fe2+)0.5mg/L,m(Fe2+)∶m(Co2+)∶m(Ni2+)=10∶1∶2,,,VFA,;“”,,,,,EGSB。2VFA/ALKFe2+,m(Fe2+)∶m(Co2+)∶m(Ni2+)=10∶1∶23.3“”2,(40℃)(30℃)VFAALK,,。,,VFA,,pH,。3EGSB3(a),35℃15℃,15min35℃。,,VFA/ALK;35℃,VFA/ALK。,。,VFA/ALK。3(b),35℃10℃,2h35℃,,VFA/ALK3(a),,。,,VFA/ALK,,。,,,,,。,,“”,,。41)EGSB,,,,,,。2)pH,pH6.5~7.5,pH。3)CODCr2000mg/L,48L/d,,,c(Fe2+)0.5mg/L,m(Fe2+)∶m(Co2+)∶m(Ni2+)=10∶1∶2,29--2016420164AcidificationPhenomenonandRecoveryMeasuresofEGSBReactorinTreatingBreweryWastewaterGEQi-long,WANGPeng(TaiyuanUnivercity,Taiyuan030032,China)Abstract:ThisarticleexploresthecausesoftheproblemofacidificationEGSBreactorintreatingbrewerywastewaterandrecoverymeasures,fromsuchthreeaspectsastheimpactoforganicloadingofthereactor,traceelementdeficiencyorexcess,thetemperaturedropping.ThereasonsfortheproblemsofEGSBsystemareanalyzed.ToresumenormaloperationoftheEGSBanaerobicdigestionsystem,somemeasurescanbetaken,suchascontrollingofthewaterflow,addingsodiumbicarbonate,adjustingwaterbackflow,controloftracemetalelementcontentandtemperaturefluctuationsandothermethods.KeyWords:EGSBreactor;acidification;brewerywastewater;recoverymeasures,;“”,。4),,,,VFA。35℃,,2~3℃。:[1].EGSB-[J].,2013,39(12):57-60.[2],,.[J]..2006,19(3):14-16.[3]R.E..[M].:.2001.[4],,,.EGSB[J].,2011,9(27):91-94.[5].()[M].:,2002.[6],,,.pH[J].,2014,54(12):1453-1461.[7].[M].:,2005.[8],,.EGSB[J].,2006,22(9):68-70.[9],,.BLR[J].,2015,9(3):1154-1160.,:EGSB30--
本文标题:EGSB反应器处理啤酒废水时酸化现象及其恢复措施葛启隆
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