高温条件下EGSB处理酒精废水的流态及基质产沼气转化蒋柱武

86Vol．8No．620146ChineseJournalofEnvironmentalEngineeringJun．2014EGSB121．3501182．200092EGSBEGSB。EGSB4．47%CSTＲN2．42D0．286。3～66202～27520．213m3/kgCOD0．315m3/kgCOD。EGSB。EGSBX522A1673-9108201406-2402-05FlowpatterntestandsubstrateconversionofEGSBtreatingethanolwastewaterunderthermophilicconditionJiangZhuwu1XieLi21．DepartmentofEnvironmentandEquipmentEngineeringFujianUniversityofTechnologyFuzhou350118China2．StateKeyLaboratoryofPollutionControlandＲesourcesＲeuseTongjiUniversityShanghai200092ChinaAbstractTheresearchfocusedontheresearchofflowcharacteristicsoftheEGSBreactorunderthermophi-licconditions．ＲesultsshowedthatthedeadvolumeofEGSBwaslowto4．47%．TheseriesnumberofCSTＲinseriesmodelwas2．42andthediscretedataDofone-dimensionaldiffusionmodelwas0．286．Theproductionofbiogasincreasedastheraiseoforganicload．Theactualrateofbiogasconversionwas0．213m3/kgCODfrom3to66daysand0．315m3/kgCODfrom202to275drespectivelyunderS．T．P．whichwerelowerthanthetheoreticalconversionrate．TheresultsofkineticsanalysisofsubstratedegradationindicatedthatthetreatmentcapabilityofEGSBreactorwasfine．KeywordsethanolwastewaterthermophilicEGSBflowpatterntestsubstrateconversionGY-Z110472013－05－042013－07－111974～。[e-mail]。2004457418．06t122．89%。COD30000～60000mg/L2。3。EGSB4-7、、8。9-11。。EGSBEGSBEGSB。11。EGSB5L860mm6EGSB86mm2．5L。55℃。10∶115∶1。COD。。1EGSBFig．1FlowchartofEGSBtreatmentofcassavaethonalwastewaterUASBVSS、SSpH42g/L、70g/L7．52．5L。COD1500mg/L3kgCOD/m3·d。2kgCOD/m3·d。NaCl。ElementarVarioELIII。LiCl。LiCl5mLLiCl25mg。。22．1EGSB10．48L/h15∶112．3kgCOD/m3·dLi+EtEt-t2。2．1．12。MQEt1Table1Experimentresultsofflowpatternminctmg/LEtminctmg/LEt200．040．000012807202．074531250．00066385400．503593750．000161157801．987031250．00063585600．631093750．000201958401．890156250．00060485801．23031250．000393709601．729218750．000553351001．746406250．0005588511401．3246012090．000423871201．826093750．0005843513201．1243058860．000359781402．024531250．0006478515000．9119274640．000291821602．174531250．0006958516200．8176483140．000261651802．341718750．0007493516800．7434257460．000237902002．393281250．0007658518000．6648720430．000212762202．540156250．0008128519200．595071110．000190422402．630781250．0008418521000．426173820．000136383002．596406250．0008308522200．3735579520．000119543602．655781250．0008498522800．2711903520．000086784202．432343750．0007783523400．2482068930．000079434802．430781250．0007778524000．2264024610．000072455402．262031250．0007238524600．2057028610．000065826002．187031250．0006998525200．18593750．000059506602．151093750．000688352EGSBFig．2ＲesidencetimedistributiondensityofEGSBreactorEt=QMCt1CttQ、M。珋t=∑tEt·△t∑Et·△t22895．6min937．5minVd30428Vd=1－珋t/HＲT×100%=4．47%32．1．2NCSTＲN12σ2θ=2珋t2σ2t=1N4σ2τ。σ2t=∫∞0t－珋t2Etdt∫∞0Etdt=∫=0t－珋t2Etdtσ2t=∫∞0t2Etdt－珋t25σ2θ=∫∞0θ－珋θ2Eθdθ=∫∞0θ2Eθdθ－16EθEtσ2θ=1珋t2σ2t7σ2θ4N=2．42。N＞10。N=2．422CSTＲEGSB。2．1．3。D。D＞0．0113σ2θ=2D－2D21－e－1D8σ2θ=0．414D=0．286。D＜0．01D＞0．2。2．2EGSB2．2．1EGSB14-16。EGSB1718。EGSB3。55℃EGSB。3CODFig．3CorrelationbetweenCODloadandbiogasyieldduringstart-upandoperation4。55%～61%。4Fig．4CH4contentinbiogasduringstart-upandoperationCODCOD。5、63～66202～2752COD。560．2560．378EGSB3～66Yg0．256m3/kgCOD0．213m3/kgCOD。202～2750．378m3/kgCOD0．315m3/kgCOD。40426EGSB53～66EGSBYgFig．5CurvefittingforYgofEGSBreactorfrom3dto66d6202～275EGSBYgFig．6CurvefittingforYgofEGSBreactorfrom202dto275dC、O、H、N、S45%、42%、9%、2．1%0．82%。C3．75H9O2．625N0．15S0．02598．9。CH4CO2NH3H2SC3．75H9O2．625N0．15S0．025+0．31H2O→2．28OH4+1．47CO2+0．15NH3+0．025H2S85%0．475m3/kgCOD0．395m3/kgCOD。EGSB。2．2．2K2EckenfelderMonod。Eckenfelder。S0－SeXt=K2Se9S0mg/LSemg/LXmg/LtK2。S0－SeXtSeK2。202～275K27。EGSBK20．0005L/mg·d。7202～275EGSBK2Fig．7CurvefittingforK2ofEGSBreactorfrom202dto275d1930℃12K20．0009L/mg·d0．002L/mg·d。K2。K20．0005L/mg·d19K2EGSB。31LiClEGSB。EGSB4．47%。2CSTＲN=2．42。D=0．286。33～66202～27520．213m3/kgCOD0．315m3/kgCOD。。4EckenfelderK2=0．0005L/mg·50428dEGSB。1．．．20071431-5ZhouHaifengLüXiwuWangXingangetal．Ｒesearchonthecirculareconomymodeinalcoholproducingindustry．SafetyandEnvironmentalEngineering20071431-5inChinese2．．．20062511126-128DaiShimingLüXiwuLuHuiming．Thestudyofcirculare-conomyintheproductionofalcohol．IndustrialTechnology＆Economics20062511126-128inChinese3YusufYavuz．ECandEFprocessesforthetreatmentofal-coholdistillerywastewater．SeparationandPurificationTechnology2007531135-1404．EGSB．2011377130-132LiuJianguangZhangChunyangZhangGuanglanetal．TreatingstarchwastewaterbyEGSBprocessandhighvalueuseofbiogas．TechnologyofWaterTreatment2011377130-132inChinese5．EGSB．2010368108-112SunKaiLuXiaofengZhouBaochangetl．ExpandedgranularsludgebedEGSBreactortreatinghighstrengthsoybeanprocessingwastewater．TechnologyofWaterTreat-ment2010368108-112inChinese6．EGSB．201028SI102-105TuYongGuoFangzhenLiuWeijinetal．ExperimentalresearchonthetreatmentofrecycledpaperpapermakingwastewaterusingEGSBreactor．EnvironmentalEngineer-ing201028SI102-105inChinese7MashadH．M．ZeemanG．VanLoonW．etal．Effectoftemperatureandtemperaturefluctuationonthermophilicanaerobicdigestionofcattlemanure．BioresourceTechnolo-gy2004952191-2018DinsdalerＲ．M．HawkesF．Ｒ．HawkesD．L．Anaerobicdigestionofshortchainorganicacidsinanexpanded