EGSB反应器处理城市生活垃圾沥滤液叶杰旭

67Vol．6No．720127ChineseJournalofEnvironmentalEngineeringJul．2012EGSB12221.1500902.100083EGSB。COD55000mg/LOLR22.8kgCOD/m3·dEGSBCOD94.2%。COD72000mg/LOLR18.2kgCOD/m3·dCOD88%COD9103mg/L。EGSB＜4kDa76.5%74.4%。EGSB。X703.1A1673-9108201207-2321-07TreatmentofleachatefrommunicipalsolidwasteincinerationplantbyexpandedgranularsludgebedreactorYeJiexu1DangYan2MuYongjie2SunDezhi21.StateKeyLaboratoryofUrbanWaterResourceandEnvironmentHarbinInstituteofTechnologyHarbin150090China2.BeijingKeyLabforSourceControlTechnologyofWaterPollutionBeijingForestryUniversityBeijing100083ChinaAbstractAlab-scaleexpandedgranularsludgebedEGSBreactorwasusedtotreattheleachatefrommunicipalsolidwasteMSWincinerationplant．TheresultsshowedthatEGSBwaseffectiveinremovingtheor-ganicpollutantsoftheleachateundermesophiliccondition．CODremovalreached94.2%whentheinfluentCODwasaround55000mg/LandtheorganicloadingrateOLRwas22.8kgCOD/m3·d．WhentheCODofinfluentwasaround72000mg/LOLRshouldbedecreasedto18.2kgCOD/m3·dsoastoguaran-teethestableofthereactor．UnderthisconditionCODremovalcouldreacharound88%andtheaverageCODconcentrationineffluentwas9103mg/L．TheleachateandtheeffluentfromEGSBcomprisedmainlysmallmol-ecules＜4kDawhichaccountedfor76.5%and74.4%respectively．DissolvedorganicmatterDOMcouldbeeffectivelydegradedinEGSBreactor．Andtheremovalefficiencyformacromolecularorganicswashigh-erthanthatformicromolecularorganics．KeywordsmunicipalsolidwasteincinerationleachateexpandedgranularsludgebedmolecularweightdistributionQAK20100720092012－01－182012－03－281982～。[e-mail]、。20097.12t/d2022t/a1。。3～7d2。、。5%～28%3。6COD30000～80000mg/L300～1800mg/L45。67。。BOD5/COD＞0.3。upflowanaerobicsludgeblanketUASB。UASBOLR8-12。expandedgranularsludgebedEGSBUASB。EGSB、13-15。EGSBCOD。11.14℃1～2。COD68000～75000mg/LBOD5/COD0.4～0.65pH5.2～5.9TP80～130mg/L11000～13500mg/L800～1500mg/L1200～2200mg/L。1.2EGSB4.5L6。33±1℃。1。1EGSBFig.1DiagramofEGSBprocess35℃UASB2/3。MLSS51.11g/LVS/TS0.79SMA1.15gCODCH4/gVSS·d0.5～1.5mm。1.5m/hCOD。1.3CODMLSSMLVSSpHTOCJenamultiN/C310016。VFAAgilent7890AgilentHP-INNOWAX30m0.53mm1.0μm。N25mL/min250℃FID300℃70～170℃70℃1min25℃/min170℃170℃5min1μL。。0.45μm100、50、104kDa。SCM22327EGSBN20.1MPa。22.1EGSB2.1.1COD、EGSBCOD4000mg/L。10h24h2L2d。1.8L/dHRT2.5dOLR1.7kgCOD/m3·d。HRTCODOLR。5COD4000mg/L7600、14800、2500040000mg/LOLR1.7、3、5.9、1016kgCOD/m3·d。HRTCOD、OLRCOD2。2EGSBCODFig.2CODtreatmenteffectsbyEGSBreactor2EGSB7dCOD90%。7～42COD4000mg/L40000mg/LCOD＞93%EGSB42d。COD50000～63000mg/L65000～78000mg/L。。43～52COD55000mg/LHRT2.5dOLR22.8kgCOD/m3·dCOD94.2%EGSB。72000mg/L53～62HRT2.5d3dCOD62COD73.9%COD18992mg/L。VFA317。OLR24.2kgCOD/m3·d1819。3VFAFig.3VariationofVFAineffluent63～67。VFA55000mg/LOLR18.8kgCOD/m3·d87EGSBCOD93.4%。COD＞70000mg/LVFAHRT4dOLREGSB32326。288～115OLR18.2kgCOD/m3·dCOD88%COD9103mg/L。3VFA＜2000mg/L。EGSB。9UASB5kgCOD/m3·d18.2kgCOD/m3·d。EGSBUASB。20。21EGSBVC2.0m/h2.5m/hCOD882～998mg/L592～783mg/L3.0m/hCOD。EGSB1.5m/hUASB＜1m/h22。EGSBCOD。11。2.1.2pHEGSBpHpH4。pH5.2～5.9pH。4pHFig.4VariationofpHandalkalinity4pH、CH4CO2。pHCO2CO2H2CO3CO2pH。EGSB。。CODCOD。453～62pHpH6.810000～12000mg/LpHVFApH。。2.2、1。1MLSSMLVSSVS/TS。112dVS/TS0.29。23-25。Ca2+3000～6000mg/LEGSBCa2+84～157mg/LCa2+CO2。2627。1VS/TSSMATable1VariationofVS/TSratioandSMAofsludgesd02762112MLSS49.0776.69129.37201.16MLVSS38.9641.0245.9157.35VS/TS0.790.530.350.29SMAgCODCH4/gVSS·d1.151.270.410.5742327EGSB1EGSB。62SMA0.41gCODCH4/gVSS·d。1120.57gCODCH4/gVSS·d1242。。1125。5a。。5b、。5c。28。5112dFig.5SEMphotographsofanaerobicgranulesfromEGSBreactorafter112doperation2.3EGSBEGSB2。2DOMTable2MolecularweightdistributionofDOMininfluentandeffluentEGSBTOCmg/L%TOCmg/L%＞100kDa16607.51144.250k～100kDa15627.1873.210k～50kDa6683.0742.74k～10kDa13005.941915.5＜4kDa1690076.5201274.42EGSB＜4kDa76.5%74.4%。3＜4kDa。4～10kDa5.9%15.5%。＞100kDa、50～100kDa、10～50kDa、4～10kDa＜4kDaTOC93.1%、94.4%、88.9%、67.8%88.1%EGSB。31EGSB42d。EGSBCOD55000mg/LHRT2.5dOLR22.8kgCOD/m3·dCOD94.2%。2COD72000mg/LHRT3dEGSBVFA。HRT4dOLR18.2kgCOD/m3·dCOD88%。3VS/TS。。4EGSB＜4kDa76.5%5232674.4%。EGSB。1．2010．2011432-37CommitteeofUrbanDomesticRefugeDisposalofCAEPI．Chinadevelopmentreportonurbandomesticrefugedisposalindustryin2010.ChinaEnvironmentalProtectionIndustry2011432-37inChinese2．．200019289-91LiHuaZhaoYoucai．Effectofstackingandfermentingontherefusethermalvalueintheincinerationplant．ShanghaiEnvironmentalSciences200019289-91inChi-nese3．．200619286-89HePinjingFengJunhuiQuXianetal．Characteristicsandtreatmentalternativesofleachatefromrefusestoragepitinmunicipalsolidwasteincineration．ResearchofEnviron-mentalSciences200619286-89inChinese4．．200746ChenPeng．Studyonthetreatmentprocessesforlandfillandincinerationplantleachates．ChongqingMasterDis-sertationofChongqingUniversity200746inChinese5．．200917549-5053ShiJianjing．PropertyanalysisofsecondarypollutantsinShanghaiJiangqiaodomesticwasteincinerationplant．Envi-ronmentalSanitationEngineering200917549-5053inChinese6．．2006194111-114KangJinHePinjingShaoLiming．Studyonpretreatmentofleachatefromrefusestoragepitinmunicipalsolidwasteincineratorbyvacuumevaporation．ResearchofEnviron-mentalSciences2006194111-114inChinese7．pH．200712108-111ShaoLi