HRT对厌氧氨氧化协同异养反硝化脱氮的影响安芳娇

39920189ENVIＲONMENTALSCIENCEVol．39No．9Sep．2018HＲT112111*1．7300702．730000SBＲNH+4-N、NO－2-NCOD37.27、39.97120mg·L－1ASBＲ．24℃pH7.2±0.2HＲT36、33、3027h．①HＲT33hTNLＲTNＲＲ0.056kg·m3·d－10.050kg·m3·d－1NH+4-N、NO－2-NCOD1.36、0.4749.79mg·L－196.30%、98.83%56.17%ΔNO－2-N/ΔNH+4-NΔNO－3-N/ΔNH+4-N1.170.151.320.260.150.11．②HＲT．．ANAMMOXASBＲHＲTX703.1A0250-3301201809-4302-08DOI10．13227/j．hjkx．2018020332018-02-042018-03-14516680331010041993～[e-mail]*[e-mail]ＲemovalUsingANAMMOXandHeterotrophicDenitrificationANFang-jiao1ZHAOZhi-chao1HUANGLi2HUANGJian-ming1SHAOZhao-wei1CHENYong-zhi1*1．SchoolofEnvironmentalandMunicipalEngineeringLanzhouJiaotongUniversityLanzhou730070China2．LanzhouＲailwayDesignInstituteCompanyLimitedLanzhou730000ChinaAbstractＲealdomesticsewagewasfirsttreatedinSBＲandpartialnitrificationwasachieved．WhenaverageconcentrationsofNH+4-NNO－2-NandCODwere37.2739.97and120mg·L－1respectivelytheeffluentwasdeliveredasinfluentofananaerobicammoniaoxidationreactorASBＲ．TheeffectofdifferentHＲTs36h33h30h27honnitrogenremovalofANAMMOXandheterotrophicdenitrificationwereinvestigatedunderconditionsoftemperatureof24℃andpHof7.2±0.2．Ｒesultsshowedthat①nitrogenremovalefficiencywasoptimumwithHＲTof33h．TheaveragetotalnitrogenloadrateTNLＲandtotalnitrogenremovalrateTNＲＲwere0.056kg·m3·d－1and0.050kg·m3·d－1respectively．TheaverageeffluentconcentrationsofNH+4-NNO－2-NandCODwere1.360.47and49.79mg·L－1andremovalrateswere96.30%98.83%and56.17%respectively．ΔNO－2-N/ΔNH+4-NandΔNO－3-N/ΔNH+4-Nwere1.17and0.150.15and0.11lessthantheoreticalANAMMOXvalues1.320.26duetoheterotrophicdenitrification．②ThecontributionofANAMMOXtonitrogenremovaldecreasedhoweverthecontributionofheterotrophicdenitrificationtonitrogenremovalgraduallyincreasedwithdecreasingHＲT．ThisprovidesapointofreferenceforANAMMOXinengineeringapplications．KeywordsanaerobicammoniumoxidationANAMMOXASBＲHＲTdomesticsewagenitrogenremovalperformancecontributionrate-ANAMMOX、1～4．ANAMMOXNO－2-NNH+4-N5～7NH+4+1.32NO－2+0.066HCO－3+0.13H→+1.02N2+0.26NO－3+0.066CH2O0.5N0.15+2.03H2OHＲT8～10．HＲT．11HＲT6h．12HＲT12h．13HＲTHＲT10d．HＲT9HＲTHＲT．SBＲ24℃HＲTNH+4-N、NO－2-NCOD．11.1ASBＲ114cm45cm5L．．1.2MLSS3380mg·L－1VSS2530mg·L－1．1．ASBＲ2．3．4．5．6．7．pH、OＲP8．1ASBＲFig．1SchematicdiagramofASBＲreactor1.31．SBＲCOD120mg·L－1NH+4-N37.27mg·L－1NO－2-N39.97mg·L－1NO－2-N/NH+4-N1/mg·L－1Table1Qualityofrawwastewater/mg·L－1NH+4-NNO－2-NNO－3-NCOD85.55～100.820.02～0.570.23～1.35200.12～400.4193.710.190.6355.25≈1NO－3-N＜1mg·L－1pH7.2±0.2．100mL105℃MLSS600℃MLVSS．0.45μm14CODNH+4-NNO－2-NN-1--NO－3-NpHDOMulti3420．1.4AD15TNLＲTNＲＲ16A=1．32NH+4-NremNO－2-Nrem－ΔNO－3-N+0．26NH+4-NremD=1－ATNLＲ=cinf×241000×HＲTTNＲＲ=cinf－ceff×241000×HＲTNH+4-Nrem、NO－2-NremNH+4-N、NO－2-Nmg·L－1ΔNO－3-NNO－3-Nmg·L－1cinfmg·L－1ceffmg·L－1HＲTHＲT36、33、3027h．22.1HＲT2HＲTNH+4-N、NO－2-NNO－3-N．NO－2-NNO－2-N0.70mg·L－1NO－2-N303439．NH+4-N37.27mg·L－1HＲT36h27hHＲTNH+4-NNH+4-NHＲTNH+4-N．HＲT33h9NH+4-N1.57～8.98mg·L－1101.36mg·L－196.30%．HＲT30h27hNH+4-N4.10mg·L－17.99mg·L－1．HＲT33h．17HＲT35±1℃．2HＲTANAMMOXFig．2NitrogenremovalcharacteristicsofANAMMOXsystemunderdifferentHＲTsNO－3-NNO－3-NNO－3-NN2NO－3-N5.80mg·L－1．18HＲTNO－3-NHＲTNH+4-NNO－2-NNO－3-NCODNO－3-N．11UAFB31℃HＲT6h．12UASB30～35℃HＲT12h．HＲT33hHＲT①SBＲ②24℃32～37℃91940349HＲT．13HＲT10dHＲTHＲTHＲTCOD．2.2HＲT3HＲTANAMMOXNH+4-N、NO－2-NNO－3-N．HＲT36hΔNO－2-N/ΔNH+4-N1.131.32AOBAOBNH+4-NNO－2-N．HＲT33hΔNO－2-N/ΔNH+4-N1.17．HＲT30h27hΔNO－2-N/ΔNH+4-N1.481.87HＲTNH+4-NNO－2-N．ΔNO－2-N/ΔNH+4-NNH+4-NNO－3-N．HＲT36、3330hΔNO－3-N/ΔNH+4-N0.26．HＲT27hΔNO－3-N/ΔNH+4-N0.34NH+4-NHＲTNO－2-NNO－3-NΔNO－3-N/ΔNH+4-N．3HＲTANAMMOXFig．3StoichiometricratiorelationshipofANAMMOXsystemunderdifferentHＲTs112021ΔNO－2-N/ΔNH+4-N1.32DONH+4-NNO－2-NΔNO－3-N/ΔNH+4-N0.26．ΔNO－2-N/ΔNH+4-NΔNO－3-N/ΔNH+4-N1.170.15①DO503439NH+4-NNO－2-N②CODNO－3-NN222．2.3HＲT4HＲTANAMMOXTNLＲTNＲＲ．HＲT36hTNLＲ0.040～0.069kg·m3·d－1TNＲＲ0.039～0.064kg·m3·d－112TNＲＲTNLＲ．TNＲＲTNLＲHＲT36hTN．HＲT33hTNLＲ0.056kg·m3·d－1TNＲＲ0.050kg·m3·d－1HＲT．HＲT30hTNLＲ0.048～0.083kg·m3·d－120TNＲＲ①NH+4-N②HＲT．TNＲＲTNLＲ．HＲT27hTNLＲ0.054～0.092kg·m3·d－122TNＲＲ0.040～0.069kg·m3·d－125TNＲＲTNLＲ．HＲT．4HＲTANAMMOXFig．4CharacteristicsoftotalnitrogenloadofANAMMOXsystemunderdifferentHＲTs23HＲT24hTNLＲ0.140kg·m3·d－1TNＲＲ0.120kg·m3·d－1．1736℃HＲT24hTNLＲ0.179kg·m3·d－1TNＲＲ0.125kg·m3·d－1．HＲT33hTNLＲTNＲＲ①SBＲAOBDOTN②24℃．2.4HＲT5HＲTANAMMOXCOD6HＲT．5COD120mg·L－1CODHＲTCOD60349HＲT5HＲTANAMMOXCODFig．5CharacteristicsofCODofANAMMOXsystemunderdifferentHＲTsCOD．6HＲTFig．6CharacteristicsofcontributionratesofsystemunderdifferentHＲTs6HＲT36h79.36%20.64%．HＲT27h70343967.12%32.88%．HＲTCOD21．24～27NO－3-NN2CO2．31SBＲASBＲHＲT33hNH+4-NNO－2-N1.36mg·L－10.67mg·L－196.30%98.24%NO－3-N5.76mg·L－1．0.056kg·m3·d－10.050kg·m3·d－1．2DOCODHＲTΔNO－2-N/ΔNH+4-NΔNO－3-N/ΔNH+4-NHＲT33h1.170.15．3CODHＲTHＲT．1VanDeGraafAAMulderADeBruijnPetal．AnaerobicoxidationofammoniumisabiologicallymediatedprocessJ．AppliedandEnvironmentalMicrobiology19956141246-1251．2VanDerStarWＲLAbmaWＲBlommersDetal．StartupofreactorsforanoxicammoniumoxidationExperiencesfromthefirstfull-scaleanammoxreactorinＲotterdamJ．WaterＲesearch200741184149-4163．3．J．20183962770-2777．AnFJPengYZDongZLetal．Performanceoftheremovalofnitrogen