固定化微生物法去除模拟渗滤液中氨氮的研究温丽丽

59Vol．5No．920119ChineseJournalofEnvironmentalEngineeringSep．20111234341111．1000122．1000123．1008714．100871I-BAFpHDO。97.1%99.9%。pH7.5～8.5DO4.0mg/L96.2%94.3%。I-BAF--。pHX703A1673-9108201109-2060-06RemovalofammonianitrogenfromasyntheticlandfillleachatebyimmobilizedmicroorganismsystemWenLili12NiJinren34YeZhengfang34SongYonghui1YuanPeng1PengJianfeng11．ChineseResearchAcademyofEnvironmentalSciencesBeijing100012China2．ChineseAcademyforEnvironmentalPlanningBeijing100012China3．DepartmentofEnvironmentalEngineeringPekingUniversityBeijing100871China4．TheKeyLaboratoryofWaterandSedimentSciencesMOEBeijing100871ChinaAbstractAbiologicaltreatmentwithimmobilizedmicroorganismwassuccessfullydevelopedinabiologicalaeratedfilterI-BAFtotreatsyntheticlandfillleachate．TheregulatoryeffectsofpHanddissolvedoxygenDOonnitrogenremovalwereinvestigated．ItwasdemonstratedthattheI-BAFsystemstartedupquicklyanditwasveryefficientforCODandnitrogenremovalfromsyntheticlandfillleachatewithefficienciesof97.1%and99.9%．WhenpHandDOwerecontrolledat7.5～8.5and4.0mg/LrespectivelymaximumoftotalnitrogenremovalrateandSNDarrivedat94.3%and96.2%respectivelywithlittleaccumulationofNO－2-NandNO－3-N．Itisattributedthatthemacro-porouscarriersusedinthissystemprovideananaerobic-anoxic-aerobicmicro-environmentforaerobicoxidizingbacterianitrifiersanddenitrifierssimultaneouslyoccurinthesamesystem．KeywordsimmobilizedmicroorganismbiologicalaeratedfilternitrogenremovalpHDO2010－03－182010－08－161978～。[e-mail]、、、1-4。35。67。。、38。、910。、。ANAMMOXNO－3NO－2NH+4、NO－3NO－2N211、9。12。pHDO。FPU。、—OH、—NH2、—COOH、—CH2—CHOCH2。、、、13pH14。B3500.745～140g/L。11.11I-BAF2L。FPU。FPU1g/cm312～35g/m380～120m2/g0.3～0.7mm98%3000%。1I-BAFFig.1SchematicdiagramofI-BAFsystem。1.2、/、MgCl2400mg/LKCl400mg/LNaS2·9H2O375mg/LNH42HPO480mg/LFeCl2·4H2O40mg/LCaCl2·2H2O25mg/LCoCl2·6H2O2．5mg/LKI2．5mg/LMnCl2·6H2O0．5mg/LKH2PO41000mg/LZnCl20．5mg/LNaMoO30．5mg/LH3BO30．5mg/L。NH4Cl、NaHCO3、/。1．3COD、NH+4-N、NO－3-N、NO－2-N、pH15。DOC-200HANNA。ESEMenvironmentalscanelectronicmicroscopeFEIQUANTA200F。22．1I-BAF、B350B110CODNH+4-N1000mg/L200mg/L。3d3g。HRT48hDO4mg/LpH7.5。0.5g。CODNH+4-N1000mg/L200mg/L5000mg/L1000mg/L。2Fig．2ESEMcomparisonofcarrierswithandwithoutimmobilizedmicroorganisms2a2b2c16025。、。34I-BAFCODNH+4-N200mg/L1.0mg/L97.1%99．9%NH+4-NCOD。3NO－2-NNO－3-NSND。EffSND16EffSND=1－NO－xr－NNH+4o[]－N×100%1NO－xr-NNO－2-NNO－3-Nmg/LNH+4o-Nmg/L。3Fig．3Timecoursesofinfluentandeffluentconcentrationsduringstart-upandstabilization4Fig．4Timecoursesofeffluentefficienciesduringstart-upandstabilization495%93.2%。0.5%I-BAF。I-BAFpHDONH+4-N。2．2pHI-BAFpH3pH。pHI-BAF。pH7.5～8.017。pHpH。pH7.5、18。pHpH7．3N27.3N2O19。。pH。DO0.5、2、46mg/LpHpH6.5、7.5、8.59.5。24h28℃COD1kgNH+4-N/m3·d5kgCOD/m3·d。5pH6.57.5、SNDpH。pH7．58.5±2%。pH9.5、260295pHFig．5EffectofpHonnitrogenremovalefficiencyinsystemSND。I-BAFpH7.5～8.5。6DO4.0mg/LpHFig．6EffectofpHonnitrogenbalanceofsystemunderDOof4mg/L6pHpH8.593%。pH7.5～8.5。pH9.550%24%。9.5pH。pH。NH+4/NH3pH。pH。。pH7．5pHFA20。pH8．5FA220mg/L。6FA。FA10～150mg/L21。pH9．5FA837mg/LSND。I-BAFpH7.5～8.5。FA。。2.3DOI-BAFDO22。DO。I-BAF。、-23。。pH6.5、7.5、8.59.5DODO0.5、2、46mg/L。24h28℃COD1kgNH+4-N/m3·d5kgCOD/36025m3·d。、SNDpHDOpH7.5DO7。0.5mg/L50%90%45.2%。。2mg/L96.8%92.7%95.8%。。30mg/LGB-16889-1997。7DOpH=7．5Fig．7EffectofDOonnitrogenremovalefficiencyinsystempH=7．5DO2mg/L。DO--/。DO4mg/L99.65%6.5mg/L--SND94.3%。DO6mg/LDODO4mg/L。DO-300mg/LSND68.4%。I-BAF。DO4mg/L。I-BAFDO。3I-BAFpHDO1I-BAFCOD30～40d90%CODNH+4-N97.1%99.9%。2pH7.5～8.5DO4mg/L96.2%94.3%。3I-BAF--。1BenfenatiE．FacchiniG．PierucciP．etal．Identifica-tionoforganiccontaminantsinleachatesfromindustrialwastelandfills．TrendsinAnalyticalChemistry1996158305-3102ZhaoY．C．LiuJ．Y．HuangR．H．etal．Long-termmonitoringandpredictionforleachateconcentrationsinShangHairefuselandfill．WaterAirandSoilPollution20001223-4281-297460293．．2004122148-160NiJ．R．ShaoS．Y．YeZ．F．Thecharacteristicsandtreatmenttechnologyoflandfillleachate．JournalofBasicScienceandEngineering2004122148-160inChi-nese4．．20045SpagniA．andMarsili-LibelliS．Nitrogenremovalviani-triteinasequencingbatchreactortreatingsanitarylandfillleachate．BioresourceTechnology20091002609-6146WenX．L．XiaL．J．ZhaoD．etal．Citylandfillleachateeffectsongroundwaterpollution．Water-SavingAgricultureandSustainableUseofWaterandLandRe-sources．Wuhan1and2Proceedings2004．977-98310347CalliB．MertogluB．andInancB．Landfillleachateman-agementinIstanbulApplicationsandalternatives．Chemo-sphere．2005596819-8298WenL．L．NiJ．R．SongY．H．Optimizationoftheaerobicbiologicaltreatmentofhighstrengthammoniawastewatercapableofsimultaneousnitrificationanddenitri-fication．BeijingThe2ndIWAAsiaPacificRegionalYoungWaterProfessionalsConference2009．377-3899StephensonT．PollardS．J．T．andCartmellE．Feasibil-ityofbiologicalaeratedfiltersBAFsfortreatinglandfillleachate．EnvironmentalTechnology2004253349-35410ZhouJ．LiZ．G．LongT．R．etal．Treatmentoflandfillleachateswithhighammoniaconcentrationsintwo-stagesequentialbatchbiofilmreactor．JournalofCentralSouthUniversityofTechnology2007143375-37911JettenM．S．M．WagnerM．FuerstJ．etal．Microbiolo-gyandapplicationoftheanaerobicammoniumoxidation‘anammox’