城市污水处理厂污泥制取生物柴油的试验研究王怡白小娟艾怡霏夏四清彭党聪

1111211．7100552．200092。71．6%VSS/SS0．30。1．93%、、、55～75℃。。X703A1000－4602201401－0014－045110836813JS046BiodieselProductionfromSludgeofMunicipalWastewaterTreatmentPlantsbyIn-situTransesterificationWANGYi1BAIXiao-juan1AIYi-fei1XIASi-qing12PENGDang-cong11．SchoolofEnvironmentalandMunicipalEngineeringXi’anUniversityofArchitectureandTechnologyXi’an710055China2．SchoolofEnvironmentalScienceandEngineeringTongjiUniversityShanghai200092ChinaAbstractThebiodieselproductionfromsecondarysludgeofamunicipalwastewatertreatmentplantwasstudiedbyin-situtransesterificationunderdifferenttemperaturestoachievesludgereductionandstabilization．Theorganicsolventfromtheproductionprocesswasrecoveredandutilizedsubsequent-ly．Theresultsshowedthatthelipidinthesecondarysludgecouldbeconvertedintobiodieselbyin-situtransesterificationinthepresenceofacidcatalyst．Meanwhilethesludgereductionrateattainedanaver-ageof71．6%andtheVSS/SSratiowasverystableatapproximately0．30．GaschromatographyanalysisoffattyacidmethylestersFAMEsrevealedthatthemaximumyieldofbiodieselfromthesecondarysludgebyin-situtransesterificationwas1．93%andFAMEsproducedfromthesludgemainlycontainedmethylestersofpalmitoleicacidpalmaticacidoleicacidstearicacidandlinoleicacid．Temperaturesbetween55℃and75℃hadlittleeffectonthebiodieselyieldandtypesofFAMEs．Moreoverthere-coveredmethanolduringtransesterificationcouldbeusedasacarbonsourcefordenitrificationinwastewatertreatmentplants．Keywordssludgein-situtransesterificationbiodieselwastewatertreatmentplant·41·30120141CHINAWATEＲ＆WASTEWATEＲVol．30No．1Jan．201420%～60%1。、、、、、、2FAMEs。11.14℃24h3000r/min20min90mm－18℃1h－50℃＜5%。1.25g、25mL、125mL5%－250mL55、6575℃24h。。1.35mL。50mL3min。3000r/min3min。310mL2%。。10mL32kPa、40℃。。COD22LCOD200mg/L。NaNO3NO－3－N35mg/L。COD、NO－3－NNO－2－N。1.4Agilent689030．0m×320μm×0．25μmHP－5。100℃2min10℃/min100℃170℃2min5℃/min250℃10min。280℃。45mL/min1．0μL10∶1。。1.5、、、、N2。、、、。22.12.1.155、6575℃。55℃1．93%65℃1．92%75℃1．86%。55℃。Mondala2．5%3。。2.1.2FAMEs1。FAMEsCm∶nmnn=0·51·．watergasheat．com301。1Fig．1TypeandcontentofFAMEsinbiodieselproducedunderdifferenttemperatures155、6575℃FAMEsC14∶0、C16∶0、C16∶1、C18∶0、C18∶1C18∶2。Ｒevellame、、、45。71．3%21．4%Knothe6。。38%17%、。75℃、。2.2VSS/SS。VSS/SS5g1．3439、1．3482、1．5666g73．1%、73．0%、68．7%VSS/SS0．600．33、0．33、0．24。2.32.3.1。95%。98%。2.3.21．5kgNO－3－N/kgVSS·d30min3．25kg-NO－3－N/kgVSS·d0．56kgNO－3－N/kgVSS·d。。7Ⅰ。Ｒevellame4Ⅱ。。7。2。2Fig．2Nitriteconcentrationwithwastemethanolandglucoseascarbonsourcerespectively2NO－2－N。。8。355～75℃·61·301．watergasheat．comC14∶0、C16∶0、C16∶1、C18∶0、。71．6%VSS/SS0．600．30。。1SiddiqueeMNＲohaniS．LipidextractionandbiodieselproductionfrommunicipalsewagesludgesAreviewJ．ＲenewableandSustainableEnergyＲeviews20111521067－1072．2JardeEMansuyLFaureP．Organicmarkersinthelip-idicfractionofsewagesludgesJ．WaterＲes20053971215－1232．3MondalaALiangKToghianiHetal．Biodieselproduc-tionbyinsitutransesterificationofmunicipalprimaryandsecondarysludgesJ．BioresourTechnol200910031203－1210．4ＲevellameEHernandezＲFrenchWetal．BiodieselfromactivatedsludgethroughinsitutransesterificationJ．JChemTechnolBiotechnol2010855614－620．5DufrecheSHernandezＲFrenchTetal．ExtractionoflipidsfrommunicipalwastewaterplantmicroorganismsforproductionofbiodieselJ．JAmerOilChemSoc200784181－187．6KnotheG．“Designer”biodieseloptimizingfattyestercompositiontoimprovefuelpropertiesJ．EnergyFuel20082221358－1364．7．J．200231341－44．8．J．200935111521－1526．1971－。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2013－08－011313McswainBSIrvineＲLWildererPA．Theeffectofin-termittentfeedingonaerobicgranulestructureJ．Wa-terSciTechnol20044911/1219－25．14TayJHIvnovVPanSetal．Specificlayersinaerobi-callygrownmicrobialgranulesJ．LettApplMicrobiol2002344254－257．15BelmonteMVazquez-PadinJＲFigueroaMetal．CharacteristicsofnitrifyinggranulesdevelopedinanairpulsingSBＲJ．ProcessBiochem2009445602－606．16LiuYQWuWWTayJHetal．Formationandlong-termstabilityofnitrifyinggranulesinasequencingbatchreactorJ．BioresourTechnol20089993919－3922．1984－。[e-mail]2013－08－29·71·．watergasheat．com301