多级AO工艺强化处理城市污水的效果研究尹子华

37920169ENVIＲONMENTALSCIENCEVol．37No．9Sep．2016A/O1222*23*11．2002342．3140063．100084A/O．A/OCOD、NH+4-N、TN、TP67.3±7.0%、93.7±1.5%、65.3±7.9%、60.0±18.7%、、SOS/umu82.8%．A/O、A/O．．A/OX703.1A0250-3301201609-3460-06DOI10．13227/j．hjkx．2016．09．0262016-03-072016-04-232014ZX07305001-042015AY230031991～[e-mail]*[e-mail]@mail．tsinghua．edu．cnEnhancedPollutantsＲemovalinaMunicipalWastewaterTreatmentPlantwithMultistageA/OProcessYINZi-hua12SHENGXiao-lin2LIUＲui2*CHENLü-jun23*ZHANGYong-ming11．CollegeofLifeandEnvironmentScienceShanghaiNormalUniversityShanghai200234China2．ZhejiangProvincialKeyLaboratoryofWaterScienceandTechnologyDepartmentofEnvironmentinYangtzeDeltaＲegionInstituteofTsinghuaUniversityJiaxing314006China3．SchoolofEnvironmentTsinghuaUniversityBeijing100084ChinaAbstractＲemovalofconventionalpollutantsaswellasgenotoxicitywasstudiedalongamultistageA/OprocesswhichwasbasedonthemonitoringdatainaMunicipalWastewaterTreatmentPlantMWWTPofYixingCity．TheresultsshowedthatthemultistageA/Oprocessremoved67.3±7.0%ofCOD93.7±1.5%ofNH+4-N65.3±7.9%ofTNand60.0±18.7%ofTPrespectivelywhichplayedadominantroleintheremovalperformanceofthewholewastewatertreatmentprocess．ThemultistageA/Oprocessshowedsignificantabilitytoreducealkaneshalogenatedhydrocarbonsandalcoholsinthemunicipalwastewaterwhileitfailedtoremovethearomaticproteinswhichwerethemainfluorescentsubstancesofthiswastewater．Furthermoretheprocessremoved82.8%genotoxicityfromitsinfluent．Loworganicloadsingle-phaseinfluentandundesirablecarbonsourcefeedingpatternwhichcausedthedownstreamA/OstagesbeingnotfullyutilizedwereconsideredasthepredominantreasonsfortherelativelylowperformanceofthemultistageA/Oprocess．Multi-phasefeedingandadjustingcarbonsourcefeedingpatternweretherebyproposed．TheresultswereconsideredtobehelpfulforimprovingtheoperationalperformanceoftheMWWTPandusefulforperformanceevaluationofMWWTPswithsimilarprocess．KeywordsmultistageA/Oprocessmunicipalwastewaternitrogenandphosphorusremovalthree-dimensionalfluorescencespectragenotoxicity12．2007、34．5～7．A/O、、、、8～16A16．A/O、8～17．189A/O19～22．．23～25A/O．A/O-GC-MS、excitation-emissionmatrixEEMSOS/umuA/OA/O．11.17.5×104m3·d－1A/O2.5×104m3·d－1．A．1a、A/O、、．20155190%840L·d－1．5t·d－1．A/O1b10%～15%、85%～90%A/O1～4122、A/O1～31．HＲT1．1A/OFig．1FlowchartofamunicipalWWTPofYixingCityandmultistageA/Oprocess1A/OTable1ParametersofmultistageA/OprocessV/m312211815115501069299072621781076HＲT/h1.171.7411.0810.260.950.702.091.0320153～74℃3d．GC-MS、EEMSOS/umu．1.226．164337GC-MSGC、MS7890A5975C400mLGC、MS2728．EEMF-70002930．SOS/umu3132．HLBOasis5mL、5mL4h．SalmonellatyphimuriumTA1535/PSK1002．22.1A/OCOD、NH+4-N、TN、TP114.1±12.3、19.5±9.6、34.9±4.9、5.0±3.3mg·L－131.4±6.3、0.8±0.2、10.1±0.91.0±0.6mg·L－1．COD、NH+4-NTN《》GB18918-2002ATPATP＜0.5mg·L－1．COD、NH+4-N、TN、TP72.1±6.2%、95.6±0.6%、70.0±6.4%、70±17.9%A/O67.3±7.0%、93.7±1.5%、65.3±7.9%、60.0±18.7%．A/O．A/O．A/O“”“”33．A/O75%～85%A2O65%～75%34～39A/OTNTN．TN．A/OA/ONH+4-N1.0±0.3mg·L－12TN．A/OBOD5/TN2.3～2.6BOD5/TN＞3～540．A/O．258.4%TN27.9%CODCOD66.4mg·L－124.3%CODCOD36.8mg·L－1、COD/TN3.4CODTN8.5%．3A/OA/O．50%～60%20%～26%TN1～390%77%．A/OA/O5∶34142、．、TNA/OA/O．A/O“、”EBPＲ43．A/OTP2．TPTPTP．5A/OTP3.2mg·L－11.8mg·L－1TP2.1～3.0mg·L－17A/OTP3.1mg·L－1TP0.36mg·L－1TP1.0～1.6mg·L－1．TP、、A/OBOD5/TP15.2～17.4BOD5/TP＞2043．53000mg·L－173800mg·L－126439A/O2A/OFig．2ChangeofconventionalindicatorsofmultistageA/Oprocess3A/OFig．3ChangeofnitrogenofmultistageA/Oprocess4445A/OTP．10%～20%、46．2.2A/O1GC-MSA/OGC-MS80%2．A/O271110.799×1070.598×107．A/O．A/O．A/O、．132、84.6%3.366×1070.121×107、96.4%．、、．2A/OTable2PollutantsofmultistageA/OprocessdetectedbyGC-MSandtheirconcentrationresponsevalues×107×107133.36620.12154.10740.38520.11830.02020.0760010.0890010.01310.05820.0700012.96010.0142710.799110.5982EEMA/OEEM、、、12294．73%47“”．89862.85×1052.78×105A/O．GC-MSA/O．2.3SOS/umu5＞A/O＞A/O＞．、3643374Fig．4ComparisonofEEMfororganicmatterineachareaA/O．IF=2A/O5Fig．5Changeofgenotoxicityofeachunit0.399mL2.33mL5.8482.8%485946.6%～74.7%．A/O．SPSSUV254Pearson0.999UV25449．31A/OCOD、NH+4-N、TN、TP67.3±7.0%、93.7±1.5%、65.3±7.9%、60.0±18.7%．、A/O．2A/O、、、、．82.8%UV254．1GuoL．DoingbattlewiththegreenmonsterofTaihuLakeJ．Science200731758421166．2．、J．201334103862-3871．3YangMYuJWLiZLetal．TaihuLakenottoblameforWuxi'swoesJ．Science20083195860158．4．AJ．2011271033-39．5．D．2008．6．J．201592567-571．7．J．20123372309-2314．8FujiiS．Theoreticalanalysisonnitrogenremovalofthestep-feedanoxic-oxicactivatedsludgeprocessanditsapplicationfortheoptimaloperationJ．WaterScienceandTechnology1996341-2459-466．9．A/OJ．201028245-48．10．AOJ．201238S1191-194．11．ATVA/OJ．2012282039-42．12GrgünEArtanNOrhonDetal．EvaluationofnitrogenremovalbystepfeedinginlargetreatmentplantsJ．WaterScienceandTechnology1996341-2253-260．13．A/OJ．2014301881-85．14ZhuGBPengYZZhaiLMetal．Performanceandoptimizationofbiologicalnitrogenremovalprocessenhancedbyanoxic/oxicstepfeedingJ．BiochemicalEngineeringJournal2009433280-287．15ChangHYOuyangCF．StepfeedingstrategyforenhancingnitrogenandphosphorusremovalinAOAOprocessJ．Journal46439A/OofEnvironmentalScienceandHealthPartA2001364587-598．16．A/OJ