短程硝化反硝化AOOA工艺处理老龄垃圾渗滤液王永庆

AOOA1112111．5100062．510006///AOOADO0．1～0．5mg/L。O1NO－2－N90%NH+4－NTN95%66．5%。0．3～0．5mg/LO1AHＲT13．9h。A1O1AOB。O1/O2NO－2－NSND。AOOATU992A1000－46[e-mail]dDenitrificationofMatureLandfillLeachateUsingPilot-scaleAnaerobic/Oxic/Oxic/AnaerobicProcessWANGYong-qing1CHENZhen-guo1WANGXiao-jun1JIANLei2CHENJing1CHENXiao-kun11．CollegeofEnvironmentandEnergySouthChinaUniversityofTechnologyGuangzhou510006China2．GuangzhouHualuEnvironmentalTechnologyCo．Ltd．Guangzhou510006ChinaAbstractApilot-scaleanaerobic/oxic/oxic/anaerobicAOOAprocesswasappliedfortreat-mentofmaturelandfillleachateandpartialnitrificationanddenitrificationwasachievedbycontrollingthedissolvedoxygenDOtoalowvalueof0．1－0．5mg/L．Undertheconditionoflowdissolvedoxy-genandsufficientalkalinitythenitriteaccumulationrateinthefirstaerobicreactorO1wasstablya-bove90%andtheremovalrateofammoniumandtotalnitrogenofthewholeprocesswashigherthan95%and66．5%respectivelywhichindicatedthatAOOAprocesscouldeffectivelysolvethedifficultproblemofnitrogenremovalinlandfillleachate．ThelimitingfactorofpartialnitrificationofO1wastheactualhydraulicretentiontimeAHＲTandshouldbecontrolledabove13．9hundertheconditionofDOof0．3－0．5mg/L．InthenormaloperationstagethedominantbacteriainthefirstanaerobicreactorA1weredenitrifyingbacteriawhilethedominantbacteriaintheO1wereammonia-oxidizingbacteriaAOB．InadditionnitriteaccumulationwasrealizedinO1/O2andsimultaneouspartialnitrification·81·3421201811CHINAWATEＲ＆WASTEWATEＲVol．34No．21Nov．2018anddenitrificationSNDwasformedtoacertainextent．KeywordsnitrosationshortcutdenitrificationmaturelandfillleachateAOOAprocess。。、1。pH、MLSS、FA、、DOHＲT2。pHNOBAOB3。AOBNOB0．3～0．5、0．7～1．8mg/LDO4。AOOA0．1～0．5mg/L、、HＲTC/N。、CODAOOA。11.1pH8．78COD、NH+4－N、TN、3144、1425、1512、6684mg/L。1.2AOOA1PVC4720L。1Fig．1FlowchartofAOOAprocessA1A2A12∶1。A2。10L/d。DOA1、O1、O2、A2DO0、0．1～0．5、0．1～0．5、0mg/LO1DO。O1DO0．3～0．5mg/L。24h。1。1AOOATab．1Operationplanofpilot-scaleAOOAprocess/L·d－1/mg·L－1HＲT/dO1HＲT/hO1DO/mg·L－1Ⅰ60400→6001222．70．1～0．3Ⅱ—————Ⅲ606001222．70．1～0．3Ⅳ60600→15001222．70．1～0．3Ⅴ60728490100110120130012108．687．26．6622．719．116．515．413．912．711．70．3～0．5Ⅰ～Ⅴ1～58、59～69、70～80、81～132、133～188dⅡⅢⅤ7。·91·．watergasheat．comAOOA34211.3CODNH+4－NNO－2－NN－1－－NO－3－NTNpHpHs－25DOHACHHQ30dMLSSSV30。22.12。①Ⅰ～Ⅲ≥95%60L/d2∶1400mg/L。②Ⅳ3～4dCOD/TN2．2。Ⅳ。③Ⅴ1300mg/L60L/d120L/dHＲT12d6dO10．1～0．3mg/L0．3～0．5mg/L。2Ⅳ、ⅤFig．2DataofinfluentandeffluentqualityofphaseⅣandⅤ2.2AOOA2100L/dHＲT7．2dAOOANH+4－N、CODTN92%、74%70%NAＲ97%。120L/dHＲT6d。ⅣA1O1100mg/L480mg/L97%。435mg/LHＲT＜7．2d174d。0．15kg/dO10．11kg/dDO0．1～0．5mg/LO10．688kgNH+4－N/m3·dNH+4－NNO－2－NNAＲ90%。174dO1NAＲ3。100～174dCOD/TN2．2CODTN70%C/N。HＲT6．6d175～188dNAＲTNCOD/TN2．2HＲT≥6．6dQ≤110L/d。HＲTO1A1。·02·3421．watergasheat．com3NH+4－NAOOAFig．3TreatmentperformanceofAOOAsystemunderdifferenttotalinfluentamountofNH+4－N3O1TN174dO1。174dO1TN。O1A1O1。O1NO－2－NNO－3－N0．15kg/dO1。O1。NH+4－NTN。A2A1A14。4ⅤAOOAFig．4MonitoringdataofeachpartofAOOAprocessinphaseⅤ。4A160%O1。HＲTNH+4－N。HＲTNO－2－NDO。。NAＲ97%90%。TNTN60L/dTN73%100L/d。HＲT7．2dCOD、NH+4－NTN730、9390mg/L。GB16889—2008。2.3A1NO－2－N215mg/LNO－3－N10．5mg/LA1COD1327mg/L882mg/L。COD/NO－2－N=2．141．53。A1。O1COD224mg/L398mg/LNO－2－N325．6mg/LNO－3－N4．9mg/L1790mg/LCaCO3。O1TNCOD。O2COD、、TNNO－2－NNO－3－N。O2、、、。A2A2COD、、TN、、NO－2－NNO－3－NA2。A2TN。·12·．watergasheat．comAOOA34213A1O1。O1O1SND。。A1NO－2－NCOD。A1NO－2－N174～188d。O1AOBNOBO2NO－2－NDONOB。AHＲT、DOpH。3.1O1AHＲTO1AHＲTNAＲ、NS、SVI5。5O1AHＲTFig．5SludgeindexandeffluentqualityofthefirstoxicreactorunderdifferentAHＲTNAＲ90%NAＲ。AHＲT0．170kgNH+4－N/kgMLVSS·dAHＲT≥13．9hO1AHＲT≤12．7h。。SVI50～200mL/g。SVIMLVSSSVI5MLVSS。ⅤO1MLVSS4200mg/L。SVI169～214mL/g。5O1O1。6。3.2DOSND。、、O1SND7。O。O1、、COD、NO－2－N、。DO、。DO、SND8。AOOAO1、O2DO0．1～0．5mg/L。OTN10．4%SND。3.3pHpHpH。pH·22·3421．watergasheat．compHpHFA。pH6．0～7．5pH7．0～8．59。O1100mg/LpH7．0～8．5O1FA10mg/L。NOBAOBFAAOB25mg/LNOB1～5mg/L10。AOBNOB。A1pH。O1、O2pH7～7．8AOBO1600mg/LCaCO3。4①AOOAO1、O2DO。②AOOA2∶110L/dO1O2DO0．3～0．5mg/L100L/d1300mg/LCOD3100mg/L。COD、NH+4－NTN730、9390mg/LHＲT7．2d。③CODTNA1NH+4－NO1NO－2－N。A1CODTN75%73%O199%95%。④A1O1AOBNO－2－NSND。AHＲT、DOpHAOOAO1SND。1ZhangCZhangSZhangLetal．EffectsofconstantpHandunsteadypHatdifferentfreeammoniaconcentra-tionsonshortcutnitrificationforlandfillleachatetreat-mentJ．ApplMicrobiolBiotechnol20159981－7．2．A/OJ．2006265703－709．MaYongWangShuyingZengWeietal．A/Opilot-scalenitrogenremovalprocesstreatingdomesticwastewaterⅠ．Thestudyofshort-cutnitrificationanddenitrificationJ．ActaScientiaeCircumstantiae2006265703－709inChinese．3．UASB－A/OJ．200929101059－1064．SunHongweiPengYongzhenShiXiaoningetal．A-chievingnitrogenremovalfromlandfillleachateviaUASB-A/OprocessJ．ChinaEnvironmentalScience200929101059－1064inChinese．4GuisasolaAJubanyIBaezaJAetal．ＲespirometricestimationoftheoxygenaffinityconstantsforbiologicalammoniumandnitriteoxidationJ．JChemTechnolBiotechnol2005804388－396．5．A2/O2J．2011371290－93．GaoJianleiZhangXiaojingLiuHanghang．Ｒesearchonshort-cutnitrificationanddenitrificationinA2/O2processfortreatmentofnitrogenousfertilizerwastewaterJ．TechnologyofWaterTreatm