搜索
39820188ENVIＲONMENTALSCIENCEVol．39No．8Aug．2018--123123123123123*1．2150092．2150093．215009-．-600mg·L－1COD＜483mg·L－1NＲＲ1.88kg·m3·d－1NＲE90.3%COD＞483mg·L－1C/N＞0.8-NＲＲ1.50kg·m3·d－1．-NH+4-N1100mg·L－1COD1150mg·L－1NＲＲ1.37kg·m3·d－1NＲＲana15.6kg·m3·d－1NＲE98.6%．．X703.1A0250-3301201808-3782-07DOI10．13227/j．hjkx．2018012522018-01-282018-02-242016YFC0401103514782841992～E-mailwangfan@post．usts．edu．cn*E-mailyhuang@mail．usts．edu．cnTreatmentofOldLandfillLeachateviaaDenitrification-PartialNitritation-ANAMMOXProcessWANGFan123LUMing-yu123YINJi-qiang123LIXiang123HUANGYong123*1．SchoolofEnvironmentalScienceandEngineeringSuzhouUniversityofScienceandTechnologySuzhou215009China2．NationalandLocalJointEngineeringLaboratoryofMunicipalSewageＲesourceUtilizationTechnologySuzhouUniversityofScienceandTechnologySuzhou215009China3．InstituteofEnvironmentalBiotechnologySuzhouUniversityofScienceandTechnologySuzhou215009ChinaAbstractToresearchtheperformanceofremovingnitrogenandorganicsfromoldlandfillleachateviadenitrification-partialnitritation-ANAMMOXDN-PN-ANAMMOXprocessanintegratedreactorseededwithmatureANAMMOXsludgeandnitritationsludgeconnectedtoadenitrificationDNreactorwasstudied．Theresultshowedthatbeforethepre-denitrificationreactorwasconnectedthePN-ANAMMOXreactorachievedanitrogenremovalrateNＲＲof1.88kg·m3·d－1andanitrogenremovalefficiencyNＲEof90.3%whentheconcentrationofinfluentammonianitrogenandCODwere600mg·L－1and483mg·L－1respectively．TheNＲＲofthePN-ANAMMOXprocessdroppedto1.50kg·m3·d－1whentheconcentrationofinfluentCOD＞483mg·L－1whichcorrespondstoC/N＞0.8．TorelievetheinfluenceoforganicmatteronANAMMOXaDNreactorwasputinfrontofthePN-ANAMMOXreactor．TheDN-PN-ANAMMOXprocessachievedanNＲＲandNＲEof1.37kg·m3·d－1and98.6%respectivelyundertheconditionsofinfluentammonianitrogenandCODconcentrationsof1100mg·L－1and1150mg·L－1respectively．TheNＲＲofANAMMOXreached15.6kg·m3·d－1．Thewholesystemrealizedahighlyefficientanddeepremovalofnitrogenwithoutanyadditionalcarbonsource．Whentreatingoldlandfillleachatemostofthebiodegradableorganicscanberemovedbythesystem．KeywordsdenitrificationpartialnitritationanaerobicammoniaoxidationANAMMOXlandfillleachateorganicmatter1NH+4-NC/N312．anaerobicammoniaoxidationANAMMOX3～6ANAMMOXNH+4-NNO－2-NN28--partialnitritationPN、78．ANAMMOX11%NO－3-N910NH+4-N＞1000mg·L－1NO－3-NNＲE90%．denitrificationDNANAMMOXNO－3-NNＲE．Miao11-PN-ANAMMOXSBＲNＲE90%ANAMMOXNＲＲana1.1kg·m3·d－1110mg·L－1CODNO－3-NNO－3-N60mg·L－1．Zhang12SNADNH+4-N1950mg·L－199%NＲＲ0.15kg·m3·d－1Vo13SNAP1.4kg·m3·d－1NＲＲ1.2kg·m3·d－190mg·L－1．ANAMMMOXSNAD、CANON、DEMONPN-ANAMMOX、DN-PN-ANAMMOX．、、1415．PN-ANAMMOX16．2kg·m3·d－117．PN-ANAMMOX．PN-ANAMMOX．11.1UASBPN-ANAMMOX1．．DN-UASB1.8LPN-ANAMMOXPN、ANAMMOX10.25L1.4L1.92L．31～34℃．DNDNPN-ANAMMOXPNANAMMOXANAMMOXDNANAMMOXNO－3-N．1DN-PN-ANAMMOXFig．1FlowchartofDN-PN-ANAMMOXsystem1.2PN18NPＲ0.5kg·m3·d－1．ANAMMOXCSTＲ19CandidatusBrocadiasinicaKP721346-KP721365MLVSS/MLSS0.45．DN2.5mm．20．1．+NH4Cl．3873391Table1CharacteristicsofoldlandfillleachateNH+4-N/mg·L－1NO－2-N/mg·L－1NO－3-N/mg·L－1COD/mg·L－1BOD5/mg·L－1/mg·L－1/g·L－1pH1200～19000.1～0.50.1～0.51800～2200400～5006000～800016～187.7～8.11.320．NH+4-NNO－2-NN-1--NO－3-NMLVSS/MLSSCODDＲB200BOD5BODTrak3020MpH、DO、WTWMulti9430．1.4PN-ANAMMOXDNPN-ANAMMOXANAMMOXNO－3-N．NH+4-N2．Ⅰ、ⅡNH+4-NNH+4-NNH+4-N．．2NH+4-NTable2ComponentsandconcentrationsofinfluentammonianitrogenduringthetestNH+4-N/mg·L－1/dNH+4-N/%NH+4-N/%2080Ⅰ6001～534060703010006040Ⅱ1000～110054～928020100022.1PN-ANAMMOXPN-ANAMMOXNH+4-N600mg·L－1NＲＲ1.1kg·m3·d－1NＲE77%．29dNH+4-N20%．21．19～29dNH+4-N40%NH+4-N19～20d70mg·L－1．PN375L·h－1400L·h－1NH+4-N2UASB、COD、HＲTFig．2ChangesininfluentandeffluentnitrogenCODinfHＲTandpercentageoflandfillleachateintheinfluent15mg·L－148738--22PNNH+4-NAOBNH+4-N．19～29dNH+4-NNO－2-N13.78mg·L－116.35mg·L－1ANAMMOXHＲT0.38d0.29dNLＲPNNO－2-N/NH+4-N1.32．NＲＲ19d1.23kg·m3·d－129d1.88kg·m3·d－1、22ANAMMOX．3NLＲ、NＲＲNＲEFig．3TrendsofNLＲNＲＲandNＲENH+4-N70%3NＲＲ33dPN-ANAMMOX1.99kg·m3·d－1．30d～43dCOD483mg·L－1C/NTN0.8NH+4-NNO－2-NNＲＲ39dNＲＲ1.5kg·m3·d－1．PNANAMMOXANAMMOX．23ANAMMOXTOC/NH+4-N＞0.4C/NTN＞0.45ANAMMOX．30～40dNO－3-NNO－3-N19mg·L－110～30d4．ANAMMOX．4NO－3-NNO－3-NFig．4EffluentNO－3-Nintheoryandinreality2.2DN-PN-ANAMMOX40dDNPN-ANAMMOX1．DNANAMMOXNO－x-NDNDNNO－3-N．DN540～43dDN-PN-ANAMMOXNH+4-N、NO－2-NNO－3-NNＲＲ1.5kg·m3·d－11.61kg·m3·d－1DNPN-ANAMMOX．44dNH+4-N100%NH+4-N．NO－3-NDNPNAOBPNNPＲNH+4-N90mg·L－1．PN0.68m3·h－10.85m3·h－1NH+4-N30mg·L－1．47～53dNH+4-NNO－2-N15.2587339mg·L－15.4mg·L－1NO－3-N0NＲE98.8%．54dNH+4-N1000mg·L－1HＲT0.63dNH+4-N．ⅡNH+4-NPNANAMMOX．NO－3-NCODCOD．83dNH+4-N．NO－3-N0DNNO－x-NNＲE．NH+4-N9.9mg·L－1TN＜15mg·L－1NＲE98.6%《》GB16889-2008．NＲＲ1.37kg·m3·d－1ANAMMOXNＲＲana15.6kg·m3·d－1NＲE．3NＲＲNＲE．UASBPN-ANAMMOXANAMMOXNO－3-N、．5、COD、HＲTFig．5ChangesininfluentandeffluentnitrogenCODinfHＲTandpercentageoflandfillleachateintheinfluents31Table3ComparisonofsimilarresearchinrecentyearsTN/mg·L－1V/LHＲT/dNＲＲANA/kg·m3·d－1NＲＲT/kg·m3·d－1NＲET/%SNAD1950101.5—0.15a9912DN-PN-ANAMMOX1100330.77b1.10.52c9011ANAMMOXＲEACTOＲ650NH+4-N850NO－2-N100.1510—8924PN-ANAMMOX6007.51.10.590.558725PN-ANAMMOX100071.518.30.939326DN-PN-ANAMMOX110015.40.815.61.3798.61aSBＲ10%bANAMMOXHＲTH