SBR生物脱氮试验研究

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2020-07-16

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1984－。2011－11－04SBR239000。SBRpH7．0～8．53．51．5h70%60%。。SBRX703.1A1007－7731201123－46－03SBRonBiologicalNitrogenRemovalWangWeiChuzhouEnvironmentalMonitoringStationChuzhou23900ChinaAbstractThecontemporaryphenomenonofpollutionbecomeincreasinglyserioustheremovalofnitrogenhasbecomethefocus．WeresearchthebiologicaldenitrificationintheexperimentweadopttheSBRbiologicaldenitrification．Inthecon-ventionaltemperaturepH7．0－8．5andcontrollingsomeothercommonconditions．Theresearchshowsthebesttimeofnitrificationanddenitrificationare3．5hand1．5h．Theefficiencyofdenitrifcationinwholeexperimentismorethan70%theremovalratiooftheaerobicnitrificationperiodisabout60%．Bytheanalysisofotherdataitshowsthatitispossiblesimultaneousnitrificationdenitrificationexistinthisexperiment．KeywordsSBRRemovingnitrogenOptimalreactingtimeRemovalratio“”“”、。。SBRSequencingBatchReactorProcess→→→→52SBR2SBR。SBRNH+4→NO－2→NO－3NO－3→NO－2→N221。。。。。SBR。2COD/N5．5～7DO2．5mg/L8．512mg/gMLSS·h。DO0．5mg/L。1SBRSBR3。、64AnhuiAgri.Sci.Bull.20111723。11．15LKL－1SBR1。1．2C6H12O6168mg/L、NH42SO4141mg/L、KH2PO44mg/L、NaHCO3500mg/L、MgSO425mg/L、CaCl212mg/L、1mL/L。1。1mg/LCODcr170～200NH+4－N28～32TP1～31．3COD444N－1－4MLSS4SV3030min4。1．4、pH、DO51．4．1、pH、DO5520～30℃pH6．5～8．5DO2．5mg/LDO0．5mg/L。1．4．2。30mg/L300mg/L。1．512h25d。2SBRh41．51．0、0．55．03KL－1。。1∶11。2。70%。22．18h1．5h8hNH+4－NNO3－－N2。2NH+4－NNO－3－N20～3．5h、。23．5h。2．26。63．5h4h。NO－3－NNH+4－N3。3NH+4－NNO－3－N31．5h0．5h0．5hNO－xNH+4。1h1．5h。31．5h。741723SBR1．5h6－7。2．36CODcr、NH+4－N、NO－3－NNO－2－N34、5。3minCODcrmg/LNH+4－Nmg/LNO－3－Nmg/LNO－2－Nmg/LNO－x－Nmg/LTNmg/L03570105140175210230250270300179．298．452．731．426．723．521．3191．9113．270．0840．236．8335．5427．4022．6821．2217．5815．2113．4111．9810．8810．409．890．2590．140．1770．3280．8740．2810．1260．0920．0810．1870．1090．0050．0160．0690．140．210．2790．3360．0220．0080．0020．0020．2640．1560．2460．4681．0850．5600．4620．1140．0890．1890．11108．2484．831．0383．0242．8941．8981．7781．1250．3890．58845NO－x－N4、513．5h。62%72%。2COD1～2h1hCOD。3NO－x2．5h。4NO－x。NO－xNO－x350%。33．5h1．5h62%72%。。1．SBRJ．200527477－80．2．J．2006251－254．3．SBRJ．2008352280－283．4．M．2002．5．SBRJ．200119216－19．6．J．199917111－13．7．SBRJ．2006232155－159．84AnhuiAgri.Sci.Bull.20111723