镉离子对厌氧氨氧化脱氮性能的影响王敬平

112341111．5100062．5500013．5106404．510006ANAMMOX。＜2mg/L2mg/L。UASB。150d＜5mg/L≥10mg/L25d。UASBX703C1000－4602201617－0095－05EffectofCadmiumIononPerformanceofANAMMOXWANGJing-ping1ZHOUShao-qi1234YUANJin-peng1ZHANGJin-yao1XUMing-yi11．CollegeofEnvironmentandEnergySouthChinaUniversityofTechnologyGuangzhou510006China2．GuizhouAcademyofSciencesGuiyang550001China3．StateKeyLaboratoryofSubtropicalBuildingScienceSouthChinaUniversityofTechnologyGuangzhou510640China4．KeyLaboratoryofPollutionControlandEcosystemＲestorationinIndustryClusters＜MinistryofEducation＞[e-mail]-termeffectofcadmiumiononanaerobicammoniumoxidationANAMMOXprocesswasevaluatedusingbatchexperiments．Theresultsshowedthatalowimpactonthenitrogenre-movalperformanceoftheANAMMOXwasfoundwhencadmiumionconcentrationwaslessthan2mg/L．Howeverwhencadmiumionconcentrationwasover2mg/LincreasingtheconcentrationofcadmiumionwouldcauseincreasedinhibitionofnitrogenremovalperformanceofANAMMOX．Long-termeffectofcadmiumiononnitrogenremovalperformanceoftheANAMMOXwasevaluatedinanup-flowanaerobicsludgeblanketUASBreactorusingsimulatedwastewater．Through150-daycontinuouscultivationitwasfoundthatwhencadmiumionconcentrationwaslessthan5mg/LnitrogenremovalperformanceofANAMMOXwouldnotbeaffected．Whencadmiumionconcentrationreachedorexceeded10mg/Lni-trogenremovalperformanceofANAMMOXwouldbeaffected．Afterabout25-dayrecoverycultivationnitrogenremovalperformanceofANAMMOXcouldberestored．·59·321720169CHINAWATEＲ＆WASTEWATEＲVol．32No．17Sep．2016KeywordsANAMMOXcadmiumionUASBnitrogenremovalperformanceANAMMOX、12。20029．5kg/m3·d34。、、C/N25。、、、、6。、、、、、7～11。Bi12。。UASBUASB。11.118UASB。VSS17g/L4．0kgN/m3·d。150mL100mg/LNH+4－N120mg/LNO－2－NpH6．7～7．5100mL2g/L。30℃200r/min。。。1.21.2.1UASB7．53．2L13。30±1℃14。pH6．7～7．515HＲT4．89h。0．5mg/L15mg/L。1.2.2NH+4－N400±30mg/LNO－2－N480±20mg/LCaCl2180mg/LNaHCO31100mg/LMgSO4300mg/LKH2PO4130mg/L。ⅠEDTA5000mg/LFeSO45000mg/LⅡCuSO4·5H2O250mg/LZnSO4·7H2O430mg/LMnCl2·4H2O990mg/LNiCl2·6H2O190mg/LCoCl2·6H2O240mg/LH3BO414mg/LNaMoO4·2H2O220mg/L1．2mL/L。Cd2+CdCl2。1.3NH+4－NNO－2－NN－1－－NO－3－NSS、VSSTang16。22.1ANAMMOXANAMMOX1。5、10、20mg/LNO－2－NNH+4－N。Cd2+＜2mg/LCd2+ANA-MMOX。5mg/LANAMMOX6h10mg/L4h。Cd2+5mg/L1020mg/LANAMMOX。·69·3217．watergasheat．com00.25mg/L0.５mg/L1mg/L2mg/L3mg/L5mg/L10mg/L２０mg/L１２０１００８０６０４０２０48t/h44402420161284NO2-N/(mg·Ｌ－１)-a.ＡＮＡＭＭＯＸ对NO2-N的去除过程-０１２０１００８０６０４０２０48t/h44402420161284NH4-N/(mg·Ｌ－１)＋b.ＡＮＡＭＭＯＸ对氨氮的去除过程０00.25mg/L0.５mg/L1mg/L2mg/L3mg/L5mg/L10mg/L２０mg/L1ANAMMOXFig．1InfluenceofCd2+onANAMMOXdenitrificationeffectforashorttime2.2ANAMMOX2。5004003002001000120110100908070605040去除率/%1614121086420Cd２＋/(mg·Ｌ－１)020406080100120140160P1P2P3t/dNO2-N/(mg·L-1)-30a.对反应器去除亚硝酸盐氮的影响进水ＮＯ２－Ｎ出水ＮO2－ＮNＯ２-N去除率Cd2+浓度－--450400350300250200150100500120110100908070605040去除率/%1614121086420Cd２＋/(mg·Ｌ－１)020406080100120140160P1P2P3t/dNH4-N/(mg·L-1)+3020进水ＮＨ４－Ｎ去除率出水ＮＨ４－ＮNH4-N去除率Cd2+浓度+++b.对反应器去除氨氮的影响4.54.03.53.02.52.01.51.0NRR/(kgN·m-3·d-1)12011010090807060504030TN去除率/%1614121086420Cd２＋/(mg·Ｌ－１)020406080100120140160P1P2P3NRRＴＮ去除率Cd2+浓度t/dc.对反应器去除总氮及氮去除负荷的影响2ANAMMOXFig．2InfluenceofCd2+onANAMMOXdenitrificationeffectforalongtime150dP1、P2、P3。2.2.1P110dHＲT4．89hNH+4－N、NO－2－N、TN93．6%～96．6%、99%、88%NＲＲ3．9kgN/m3·d4．0kgN/m3·d。2.2.2P2P2。11～56dNH+4－N96%NO－2－N99%88%NＲＲ3．9kgN/m3·d。P1NH+4－N＜3mg/LANAMMOX。ANAMMOX。565mg/L56～62dNH+4－N79．6%～84．5%、NO－2－N83．3%～86．1%、TN78．2%～80．5%、NＲＲ3．34～3．53kgN/m3·d。64dNH+4－N98．6%、NO－2－N99．6%、TN90%、NＲＲ4．0kgN/m3·d。Cd2+5mg/L·79·．watergasheat．com3217。76～78d。9010mg/L。94NH+4－NNO－2－N110．9123．8mg/LNH+4－N95．3%72．9%NO－2－N97．7%74．1%TN89．7%64．9%NＲＲ4．0kgN/m3·d2．88kgN/m3·d。。ANAMMOX。ANAMMOX10012．5mg/LNH+4－NNO－2－N。110NH+4－N208．1mg/LNO－2－N245．4mg/LNH+4－N、NO－2－N、TN51%、49．0%45．5%NＲＲ2．06kgN/m3·d。ANAMMOX。11215mg/LNH+4－NNO－2－N。122NH+4－N281．3mg/LNO－2－N318．6mg/LNH+4－N、NO－2－N、TN29．8%、33．9%30．5%NＲＲ1．34kgN/m3·d。ANAMMOX114。。。Cd2+5mg/LANAM-MOXCd2+5mg/LANAMMOX。2.2.3P3114。25dNH+4－N、NO－2－N、TN99．1%、98．6%89．3%NＲＲ4．0kgN/m3·dP1。。5mg/LΔNO－2－N/ΔNH+4－N1．16～1．311．32。5～15mg/LΔNO－2－N/ΔNH+4－N1．04～1．36ANAMMOX。2.33。ANAMMOX17。。ANAMMOX。a.b.3Fig．3StructureofsludgebeforeandafterCd2+experiment3①Cd2+＜2mg/LAN-AMMOXCd2+ANAMMOXCd2+5mg/L6h。·89·3217．watergasheat．com②＜5mg/L5～10mg/LCd2+≥10mg/L。25dCd2+ANAMMOX。1LottiTvanderStarWＲLKleerebezemＲetal．TheeffectofnitriteinhibitionontheanammoxprocessJ．WaterＲes20124682559－2569．2KimuraYIsakaK．Evaluationofinhibitoryeffectsofheavymetalsonanaerobicammoniumoxidationanam-moxbycontinuousfeedingtestsJ．ApplMicrobiolBiotechnol201498166965－6972．3LiangZLiuJX．Landfillleachatetreatmentwithano-velprocessAnaerobicammoniumoxidationAnam-moxcombinedwithsoilinfiltrationsystemJ．JHaz-ardMater20081511202－212．4vanderStarWＲLAbmaWＲBlommersDetal．St-artupofreactorsforanoxicammoniumoxidationExperi-encesfromthefirstfull-scaleanammoxreactorinＲotter-damJ．WaterＲes200741184149－4163．5．J．2014233521－527．6．J．200533663－67．7．J．20092981629－1634．8．J．2012282130－33．9DavereyAChenYCSungSetal．Effectofzinconanammoxactivityandperformanceofsimultaneouspar-tialnitrificationanammoxanddenitrificationSANDprocessJ．B