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Chemosphere92(2013)1529–1535ContentslistsavailableatSciVerseScienceDirectChemospherejournalhomepage:www.elsevier.com/locate/chemosphereSpeciationandformationofiodinatedtrihalomethanefrommicrobiallyderivedorganicmatterduringthebiologicaltreatmentofmicro-pollutedsourcewater⇑YuanyuanWeia,b,YanLiub,,LumingMaa,HongwuWanga,JinhongFana,XiangLiub,Rui-huaDaibaNationalEngineeringResearchCenterforUrbanPollutionControl,TongjiUniversity,588MiyunRoad,Shanghai200092,ChinabDepartmentofEnvironmentalScienceandEngineering,FudanUniversity,220HandanRoad,Shanghai200433,Chinahighlights CHCl2IandCHBrClIwereidentifiedasemergingDBPsforthefirsttimeinChina. ThepotentialI-THMspecieswasevaluatedduringdrinkingwatertreatment. LipidsproducedthemostlevelofCHCl2Iamongthefivebiochemicalcompositions.articleinfoabstractArticlehistory:Watersourcesaremicro-pollutedbytheincreasingrangeofanthropogenicactivitiesaroundthem.Dis-Received18October2012infectionbyproduct(DBP)precursorsinwaterhavegraduallyexpandedfromhumicacid(HA)andfulvicReceivedinrevisedform20March2013acidtootherimportantsourcesofpotentialorganicmatter.ThisstudyaimedtoprovidefurtherinsightsAccepted15April2013intotheeffectsofmicrobiallyderivedorganicmatterasprecursorsoniodinatedtrihalomethane(I-THM)Availableonline11May2013speciationandformationduringthebiologicaltreatmentofmicro-pollutedsourcewater.TheoccurrenceofI-THMsindrinkingwatertreatedbybiologicalprocesseswasinvestigated.TheresultsshowedfortheKeywords:firsttimethatCHClIandCHBrClIareemergingDBPsinChina.Biologicalpre-treatmentandbiologicalMicro-pollutedsourcewater2activatedcarboncanincreaselevelsofmicrobes,whichcouldserveasDBPprecursors.ChlorinationIodinatedtrihalomethaneMicrobiallyderivedorganicprecursorsexperimentswithbovineserumalbumin(BSA),starch,HA,deoxyribonucleicacid(DNA),andfishoil,con-BiochemicalcompositionfirmedtheclosecorrelationbetweentheI-THMspeciesidentifiedduringthetreatmentprocessesandIodidethosepredictedfromthemodelcompounds.Theeffectsofiodi
