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56Vol．5No．620116ChineseJournalofEnvironmentalEngineeringJun．2011UASB1211*1．1500012．266555UASBPCPUASBPCP。PCPPCPCOD91.5%82.4%。PCP4～10UASB。UASBX703A1673-9108201106-1289-05StudyonPCPdegradationabilityofsludgeindifferentlevelsofUASBreactorXueJianliang12LiJinchunzi1LiuGuangmin11．DepartmentofEnvironmentalEngineeringCollegeofMaterialScienceandChemicalEngineeringHarbinEngineeringUniversityHarbin150001China2．CollegeofChemistryandChemicalEngineeringChinaUniversityofPetroleumQingdao266555ChinaAbstractToinvestigatethetoxiceffectsofPCPontheanaerobicdegradationsystemanexperimentalstudythatsimulatescontinuous-flowPCPcontainedsewagewaterwascarriedoutusingaUASBreactor．AndthebatchexperimentwasconductedtostudythePCPdegradationabilityofsludgeindifferentlevelsofUASBre-actor．ThestudyrevealedtheinfluenceofthePCPtomicroorganisminthesystemandthedifferencePCPdegra-dationabilityofmicroorganismindifferentlevelsofreactor．TheexperimentalresultsindicatethatinthedifferentphasesthedegradationratesofPCPandCODshowedthetrendofinitialquickdropfollowedbyaslowraise．AftertheanaerobicdegradationsystemwasstabilizedthedegradationratesofPCPandCODreachedto91.2%and82.4%respectively．PCPhadanimpactonthedifferencemicro-organismsPCPsignificantlyinhibitedtheactivityofmethanebacteria．Thedegradationofpentachlorophenolinbottomsludgeis4-10timesofthatintopsludge．SoinUASBsystemtheacidogenicbacteriaplaysanimportantroleindegradationpentachlorophenol．KeywordspentachlorophenolUASBreactormicrobialactivityco-metabolism508780632010－04－082010－05－121983～。E-mailll-1382@163．com*E-mailliuguangmin@vip．sina．com2030、1。、2InternationalAgencyforResearchonCancerIARC2B“”。PCP683PCP5。4-7689。10。PCP。UASBPCPUASB。11．11。UASB50LUASB35±1℃1.04L/h1。1USABFig.1USABreactorapparatusandflowchart1．2NaHCO3pH6.5～7.8NaOHPCP-Na。PCP11PCP。PCPPCP1。C。UASB3000r/min2。500mL5000mg/LCOD3000mg/L、20mg/L36±1℃。1Table1OperationalparametersduringexperimentPCPmg/LCODmg/LHRThAPCP—300048BPCP15300048CPCP203000481.3COD12VFAs13。PCPHPLC。3000r/min15min0.45μmHPLC0．5%/15/85280nm。22．1UASBUASB2。2BPCP1PCPCOD9～18dPCPCOD09216UASBA、B、C12PCPCODFig.2PCPandCODconcentrationsineffluentstreamduringexperiment20dPCPCOD92.4%74.7%。2C15mg/L20mg/LPCPPCPCODPCPCOD38.1%23.6%。PCPCODB30dPCPCOD94.5%89.1%。UASBCOD。7dCODCOD91.2%82.4%。2．2PCPUASBUASB1415。UASB2“”“”。0、2879UASB、ABPCPCOD23。3Fig．3Changetrendofvolatilefattyacidatdifferentphases3“”“”PCP。33。3a192152#2#UASB“”。2#4#2#4#UASB“”。3b15mg/LB3#UASB“”3#～5#“”。3cC20mg/LUASB4#4#4#～6#。3UASB。16-18PCP。。2.3UASB。CUASB4。4UASB。1#2#108h73.1%87%。3#4#108h22.7%21.6%156h3#58.6%4#37.7%。UASBUASB。2PCPPCP。2PCP。1#＞2#＞＞3#＞4#1#2#3#4#1#2#3#4#4PCPFig．4DifferenceofPCPdegradationofsludgeatdifferentlayers4～10。2．2UASB。2PCPTable2KineticequationparametersofPCPdegradationofsludgeatdifferentlayersR2Kh－11#c=0．0124t－0．0420．980．01242#c=0．0113t+0．19590．980．01133#c=0．0032t+0．0740．980．00324#c=0．0014t+0．05510．960．001431UASBCOD。7dCOD91.2%82.4%。2UASB。3UASB4～10。29216UASB1．．200932893-100WangXu-gangSunLi-rong．PentachlorophenolpollutionStatusquoandstudiesonitsdegradationandfate．Environ-mentalScience＆Technology200932893-100inChinese2DavidMcLeanAmandaEngChrisWallsetal．SerumdioxinlevelsinformerNewZealandsawmillworkerstwentyyearsafterexposuretopentachlorophenolPCPceased．Chemosphere2009747962-9673．．2006126846-849ZhouHongboChenJianQiuGuanzhouetal．Effectofenvironmentafactorsondechlorinationofpentachlorophenolbyanaerobicgranularsludge．ChineseJournalofApplied＆EnvironmentalBiology2006126846-849inChi-nese4TartakovskyB．LevesqueM．J．DumortierR．etal．Biodegradationofpentachlorophenolinacontinuousanaero-bicreactoraugmentedwithdesulfitobacterium-frappieriPCP．Appl．Environ．Microbiol．199965104357-43625．．20062691445-1450LiuHeLiGuangweiYunJiaoetal．Theresponseofbacterialcommunitywithinaerobicgranularsludgeandac-tivatedsludgetopentachlorophenolcontamination．ActaScientiaeCircumstantiae20062691445-1450inChi-nese6．．199912123-26ZhouYuexiHaoLifangZhangHanshuang．AstudyontheanaerobictreatmentofpentachlorophenolwastewaterinaUASBreactor．ResearchofEnvironmentalSciences199912123-26inChinese7．．2005252214-219RenYanhongXuXiangyangTangQuan．Molecularchar-acterizationofmicrobialpopulationsinanaerobicPCP-de-gradingbioreactor．ActaScientiaeCircumstantiae2005252214-219inChinese8．EGSB．2006262141-144ZhouHong-boQiuGuan-zhou．Treatmentofpentachloro-phenolwastewaterapplingEGSBreactor．ChinaEnviron-mentalScience2006．262141-144inChinese9LiuXin-WenHeRuoShenDong-Sheng．Studiesonthetoxiceffectsofpentachlorophenolonthebiologicalactivityofanaerobicgranularsludge．JournalofEnvironmentalManagement2008884939-94610．PCP．199622119-24ShenDongshengXuXiangyangFengXiaoshan．Effectofpentachloropkenolonbiologicalactivityofanaerobicsludgegranules．JournalofZhejiangAgriculturalUniversi-ty199622119-24inChinese11．．2002335469-472ZhouHong-boChenJian．Toxicityofpentachlorophenoltomicroorganismsofanaerobicgranularsludge．JournalofCentralSouthUniversityofTechnologyNaturalScience2002335469-472inChinese12．4．2002．210-21113．VFA．200023631-34LiuYanlingRenNanqiLiuMinetal．Analysisofvola-tilefattyacidVFAinanaerobicbio-reactorbygaschro-matography．J