SBR法短程硝化反硝化处理生活垃圾机械脱除水张攀

SBＲ11121．5180002．518055、C/NSBＲFANOBSBＲ。pH7．5～8．0、DO＜1mg/L700mg/L92．2%、90．9%。TN98．8%。TU993．3C1000－4602201801－0068－06TreatmentofGarbageMechanicalDewateringWastewaterbyShortcutNitrificationandDenitrificationinSBＲZHANGPan1LIZhi-qin1LILing-ming1ZHAOJie21．XiapingMunicipalSolidWasteLandfillShenzhen518000China2．ShenzhenGraduateSchoolHarbinInstituteofTechnologyShenzhen518055ChinaAbstractGarbagemechanicaldewateringwastewaterisseparatedfromfreshgarbagethroughhighpressureextrusionwhichischaracterizedbyhighammonianitrogenandlowC/Nafteranaerobictreat-ment．InthisstudytheammonianitrogenwastreatedbyshortcutnitrificationanddenitrificationmethodinasequencingbatchreactorSBＲ．UnderconditionsofhighfreeammoniaFAcreatedbyhigham-monianitrogenconcentrationactivityofnitriteoxidizingbacteriaNOBwasinhibitedwhichachievedpartialnitrificationandstablenitriteaccumulationintheSBＲ．Theresultssuggestedthatstableaccumu-lationofnitritecouldbeachievedatroomtemperaturereactionpHof7．5－8．0DOlessthan1mg/Landammonianitrogenconcentrationgraduallyincreasingto700mg/Lwhereammonianitrogenremovalrateandnitriteaccumulationratewereabout92．2%and90．9%respectively．Effluentofthepartialni-trificationwasfurthertreatedbydenitrificationandtotalnitrogenremovalratewasashighas98．8%．Keywordsgarbagemechanicaldewateringwastewaterammonianitrogenshortcutnitrifica-tionanddenitrificationfreeammoniasequencingbatchreactor“”2014BAC12B00JCYJ20160406162038258·86·34120181CHINAWATEＲ＆WASTEWATEＲVol．34No．1Jan．2018。1、2、3。/、。。C/N。AOBNH+4－NNO－2－NNO－3－N425%60%56C/N、78。、C/NpHFANOBSBＲ。11.1SBＲ。SBＲ1。1SBＲFig．1SchematicdiagramofSBＲforshortcutnitrificationSBＲ15cm、26．8cm3LpH。、、、、pH。SBＲ。pHpH/1mol/L、1mol/LpH7．5～8．0。pH。Ⅰ120～200mg/L250%HＲT=24hⅡ3HＲT=16h300～700mg/L。、、9、660/420、40、6minMLSS3500～4000mg/LSＲT15d。80d。。160～710mg/L50%HＲT12hSＲT15dMLSS3500～4000mg/L、、9、300、40、6min4。20d。1.2、C/N1。1Tab．1QualityofgarbagemechanicaldewateringwastewaterCOD/mg·L－135000～39000230～1000300～400BOD5/mg·L－115000～21000180～524300～400TN/mg·L－11500～1600220～1000120～700NH+4－N/mg·L－1760～980217～1000120～700NO－2－N/mg·L－11～10——NO－3－N/mg·L－1100～320——/mg·L－1320～620——SS/mg·L－13100～4350100～35060～200pH4．10～5．106．90～7．657．95～8．02·96·．watergasheat．comSBＲ341SV28%。1.3CODN－1－－。22.1SBＲpHFA。AOBpHpHFAFAAOB。pH7．5～8．0FAFNA。FAFNA9FA=1714NH+4－N×10pHexp6334273+T+10pH1FNA=4714NO－2－N×10pHexp－2300273+T+10pH2SBＲ5%DOFANOBAOB。2.2SBＲ20d2。2Fig．2VariationofNH+4－Nconcentrationduringstartupperiod2120mg/L2mg/L。12d10mg/L91%。DOFA34。3NO－x－NFig．3VariationofNO－x－Nconcentrationandnitriteaccumulationduringstartupperiod4DOFAFig．4VariationofDOandFAconcentrationsduringstartupperiod34DO2．0mg/LNAＲ40%～50%。AOBDO7～12dDO1．0～2．0mg/L12DO1．0mg/L。FA12FA4．85mg/LFANOBNAＲ60%。2.32.3.1SBＲ·07·341．watergasheat．comSBＲ。60d5。5Fig．5EffectofincreasinginfluentNH+4－Nconcentrationonshortcutnitrification510%65%。6d90%。NAＲ90%。2.3.2FASBＲFAFAAOBFANO－x－NNAＲ6。10%、300～400mg/LFA10～12mg/L、NAＲ87%～89%。FAFANOB50%、600～700mg/LFA19～21mg/L、NAＲ90%。FANOBAOB。6FANO－x－NFig．6EffectofFAoneffluentNO－x－NconcentrationandNAＲ2.4SBＲ。2.4.1SBＲNO－2－N。COD/NO－x－N=3．5。7。SBＲ。NO－2－N2NO－2－NTN97．1%94．8%。10dNO－2－N·17·．watergasheat．comSBＲ3411．0mg/L。NO－3－NNO－2－NNO－3－N99．9%。18TN＜10mg/LTN98．8%。7SBＲFig．7EffluentqualityofSBＲduringstartupofshortcutdenitrification2.4.2COD/NO－2－N=1．710。C/N1．7、2．0、2．53．08。C/N＜2．0C/N=2．5～3．0C/N=2．0～2．5C/NC/N2．02．5TNC/N2．5C/N=2．5。COD/NO－3－N=3．7111。32．6%。8Fig．8Effectofmethanoldosageonshortcutdenitrification3①SBＲ。pH。②pH7．5～8．0DO＜1mg/LFA＞10mg/LAOB。③TN98．8%·27·341．watergasheat．com32．6%。1．J．201321323－25．2．J．20122015－8．3．J．20113981173－1176．4．、J．20041257－10．5WangLZhuJMillerC．Shortcutnitrificationanddeni-trificationofswinewastewaterinasequencingbatchre-actorsystemJ．TransactionsoftheASABE2010533813－818．6ZhangXZhangDHeQetal．Shortcutnitrification-denitrificationinasequencingbatchreactorbycontrol-lingaerationdurationbasedonhydrogenionproductionrateonlinemonitoringJ．EnvironTechnol201435121478－1483．7DanielLMCPozziEForestiEetal．Ｒemovalofam-moniumviasimultaneousnitrification-denitrificationni-trite-shortcutinasinglepacked-bedbatchreactorJ．BioresourTechnol200910031100－1107．8GaoDWPengYZLiBKetal．Shortcutnitrification-denitrificationbyreal-timecontrolstrategiesJ．Biores-ourTechnol200910072298－2300．9QiaoSMatsumotoNShinoharaTetal．High-ratepar-tialnitrificationperformanceofhighammoniumcontai-ningwastewaterunderlowtemperaturesJ．BioresourTechnol20101011111－117．10SolimanMEldyastiA．Developmentofpartialnitrifica-tionasafirststepofnitriteshuntprocessinaSequentialBatchＲeactorSBＲusingAmmoniumOxidizingBac-teriaAOBcontrolledbymixingregimeJ．BioresourTechnol201622185－95．11．－J．20082724－6．1985－。[e-mail]2017－06－12·37·．watergasheat．comSBＲ341