ABR处理硫酸盐有机废水的相分离特性研究

31720107ENVIRONMENTALSCIENCEVol.31No.7Jul.2010ABR541004ABR32LABR132dCODSO2－4、VFAS2－.132dABRCODSO2－41.5kg·m3·d－13.3kg·m3·d－10.07kg·m3·d－10.18kg·m3·d－1CODSO2－495%85%.COD1、4、5SO2－4VFAS2－CODSO2－4VFAS2－VFAS2－、.ABRSMPAX703.1A0250-3301201007-1544-102009-08-192009-11-300701K0022009200911LX1032008“”0810595121970～[e-mail]teristicsofanAnaerobicBaffledReactorTreatingOrganicWastewaterContainingSulphateJIANGYong-rongHUMing-chengLIXue-junNONGYi-ningDENGXiu-meiRONGCui-juanZHOURuo-meiWEITian-yinCollegeofElectronicEngineeringGuilinUniversityofElectronicTechnologyGuilin541004ChinaAbstractPhaseseparationcharacteristicsofanaerobicbaffledreactorABRtreatingorganicwastewatercontainingsulphatewereinvestigatedina5-compartmentABRwithaneffectivevolumeof32L.Duringastart-upexperimentsof132daysthechemicaloxygendemandCODandsulphateSO2－4removalefficiencyvolatilefattyacidVFAandsulfideS2－distributionineachcompartmentweremeasured.ThemicrobiologycommunitiesofgranularsludgewerealsoinvestigatedbyscanningelectronicmicroscopeSEM.Theexperimentalresultsshowedthatlowinfluentloadingandlowincreasearethekeystostart-upofABR.ThevolumetricloadingratesofCODandSO2－4increasedstageandstagefrom1.5kg·m3·d－1to3.3kg·m3·d－1andfrom0.07kg·m3·d－1to0.18kg·m3·d－1for132dandachievedastablestatethatresultedin95%CODand85%SO2－4removal.CODhadthetrendofdecreasingwithcompartmentsalongflowdirectionit'sremovalrateincompartment14and5tookthelargeproportionintotalCODremovalrateandsulphateremovalrateintheinitialthreecompartmentstookthelargeproportionsinthetotalsulphateremovalrate.TheVFAandS2－concentrationswerehighintheinitialthreecompartmentsandobviouslydeclinedinthefinaltwocompartments.WiththeloadingrateincreasetheproportionofCODandSO2－4removalratesinthefinalroomincreasedthehighestandthelowestpointofVFAandS2－concentrationsweregraduallymovedtohindroom.TheSEMobservationindicatedmicrobiologycommunitiesofgranularsludgeineachcompartmentwerecooperativeandspecificitshowedthattheacidogenicphaseandmethanogenicphasesulfate-reducingphaseandsulfur-producingphasewereseparatedintheABR.KeywordsorganicwastewatercontainingsulphateanaerobicdigestionanaerobicbaffledreactorABRstagedmulti-phaseanaerobicSMPAmicrobiologycommunityseparation、、、、、..SRBMPB1.———MPBSRB2.3.4～7..7ABRanaerobicbaffledreactorABRUASBSMPA、89、10～13.ABR、14.ABR15～17COD/SO2－4ABRABR.ABRCODSO2－4、VFAS2－.11.1ABR5mm××=575mm×110mm×600mm32L.5、2∶145℃50mm.32℃±1℃.1.1.2.3.4.5.6.7.8.9.10.ABR11.1Fig.1Experimentalconfiguration1.2.NH4HCO3KH2PO4COD∶N∶P=200∶5∶1Na2SO4、NH42SO4MgSO4·7H2OFe、Cu、Co、Ni、MnNa2CO3pH7.3d75.8g·L－1MLVSS/MLSS=0.71/2.1.3COD18SO2－418S2－18VFA19pH-FEIQuanta200FEG20.1.4HRT132d.VFApH.VFApHAB.CODHRTHRTVFA921.ABRABRVFApHSO2－4———S2－SRBCSB.22.1CODSO2－42CODSO2－44.111dHRT36hCOD2000mg·L－14000mg·L－11.5kg·m3·d－12.7kg·m3·d－1SO2－4100mg·L－1200mg·L－10.07kg·m3·d－15451310.14kg·m3·d－1.7dCOD90%COD73～180mg·L－1SO2－485%SO2－418mg·L－1.9d11dCOD64%52%COD1500mg·L－1.pH5d6.911d5.1VFAVFA13～16mmol·L－146.22CODCODSO2－4.MPBSRBSRB1、2VFAVFApHMPB.2.212～44dHRT36hSO2－4100mg·L－10.07kg·m3·d－1.CODCODCOD2000mg·L－13000mg·L－1COD1.3kg·m3·d－11.9kg·m3·d－1.13dCOD26%COD1400mg·L－1.17dCOD44dCOD90%COD100～200mg·L－1SO2－490%.3.345～84dSO2－4100mg/LHRTCOD.HRT34h45～56d、32h57～68d30h69～84dCOD3300mg·L－14000mg·L－1COD2.3kg·m3·d－13.3kg·m3·d－1.COD95%COD180mg·L－1SO2－490%..485～132dHRT30hCOD4000mg·L－1SO2－4SO2－4.SO2－4120mg·L－1220mg·L－1SO2－40.10kg·m3·d－10.18kg·m3·d－1.COD95%SO2－485%SO2－430mg·L－1.220mg·L－10.18kg·m3·d－1SRBMPB、H2SRBMPB..2.4.2CODCOD.2、3、4CODSO2－43.COD1、4、5SO2－4CODSO2－4.Vossoughi15155ABRCOD1.02kg·m3·d－1SO2－40.09kg·m3·d－130dCOD3.00kg·m3·d－1CODSO2－41.2、3COD2、3S2－COD5SO2－4S2－5SO2－4.2.2VFAS2－41VFA900mg·L－123dVFA1020mg·L－117dVFA450mg·L－123、4VFA300mg·L－1.S2－10mg·L－1.64517ABR2CODSO2－4Fig.2CODandSO2－4concentrationsCODandSO2－4removalrateoftheABRststemduringitsoperation3CODSO2－4Fig.3RemovalratesofCODandSO2－4variationineachcompartment32dVFA、S2－COD2.31～33d20℃.1、2、3VFAS2－4、5VFA800mg·L－14S2－21.58mg·L－1.4、5———MPBCSBVFAS2－4、5MPBCSB.VFAS2－VFAS2－AB、MPBSRB、CSB.52、3、4VFAS2－.531、2、3VFAS2－4、5VFAS2－.CODSO2－42.1.23.451、2、3、、、SRBVFA、、4、54、5.1、2、3VFAS2－7451314Fig.4ChangeofvolatilefattyacidandsulfideconcentrationwithtimeintheABR5Fig.5Volatilefattyacidandsulfideineachcompartment4、5VFAS2－.444、5.CSBS04、5S2－.、.4、5S2－S2－MPB3VFA.4、5VFACOD.2425.ABRCSBMPB.2～4VFAS2－2VFAS2－24VFAS2－3VFAS2－24VFAS2－44、5..VFAWang14、She26Zhu2784517ABR142627ABRVFAVFA.SO2－4S2－S2－S0ABRSMPA.2.3pH6pHVFA41pH11dpH5.12pH7.03、4pH7.0.pH4～6.5pH6.5～8.228.pH5.0～6.0SRBpH2.5～4.5SRB29.30CSBpH6～8pH8～8.5.pH、.6pHFig.6ChangeofpHwithtimeintheABR7pHFig.7pHineachcompartment7pH.pH.pH2pH4.56、4.73、5.02、6.12、6.98COD3pH24SO2－4pH31pH4.06ABSRBVFApHpH4.72、6.54、7.06.ABSRB、CSBMPBABMPBCSB.pH.2.41～52.2、0.9、0.7、1.8、0.7mm.、、945131、、.1、2、34、5.3118～100m·h－120m·h－1.1～536、23、26、39、24m·h－120m·h－1.1441.132d8～10.818a8b.11.8Fig.8Appearanceandporousnessofgranularsludgeineachcompartment05517ABR9.1、2、3、、9a～9c1.32ABR331、2、3.49d0.1～0.2μm9e.3435CSBCSBJanssen36S8.59f1137Methanothrixsoehngenii.、.38.9Fig.9Microbialstructureofgranularsurfaceineachcompartment10.1、2、310a～10c