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730070SBRFe0、FeⅡ、FeⅢ、。Fe0MLSS2424mg/LMLVSS738mg/L28．4%84．6%SVI87mL/g。SBRCOD、、TP13．3%、7．6%、52．8%A。。TU992A1000－4602201809－0026－07EffectofDifferentValentIrononPerformanceofActivatedSludgeZHENGYingLIJieDOUNing-longWANGYa-eSchoolofEnvironmentalandMunicipalEngineeringLanzhouJiaotongUniversityLanzhou730070ChinaAbstractInordertoimprovepollutantremovalefficiencyoftheconventionalactivatedsludgeprocesstheeffectofdifferentvalentironsontheperformanceofactivatedsludgewasinvestigated．Fe0FeⅡandFeⅢwereaddedtoSBRreactorrespectivelytoanalyzethebiomassactivityandsedi-mentationperformanceofactivatedsludge．Theresultsshowedthatwiththeinteractionofironthebio-massofactivatedsludgeandflocculationsettlingperformancewereimproved．TheeffectofspongeironFe0wasthebest．ComparedwiththetraditionalactivatedsludgeprocesstheMLSSMLVSSspecificoxygenconsumptionratedehydrogenaseactivitywereincreasedby2424mg/L738mg/L28．4%and84．6%respectivelyandSVIwasreducedto87mL/g．Theimprovementofactivatedsludgeperformancewasconducivetoimprovingeffluentquality．TheaverageremovalratesofCODammonianitrogenandTPinthespongeironSBRreactorwere13．3%7．6%and52．8%higherthanthetraditionalactivatedsludgeprocessrespectivelyandallthreeindexesreachedtheurbansewageAdischargestandards．Keywordsspongeironsludgeactivitybiomasssedimentationperformancespecificoxygenconsumptionrate51468030E－mailwye@mail．Lzjtu．cn·62·34920185CHINAWATER＆WASTEWATERVol．34No．9May2018、1。。A2/O、UCT、A2/O。2COD。Fe0、FeⅡFeⅢ。FeⅢ、、。FeⅢ10mg/L30mg/L。FeⅡO2、FeⅢFeⅢ。FeⅡFeⅡ·OHFenton。Oikono-midis3FeⅡ。Fe0FeⅡ、FeⅢ4。Fe0。56、、、。、、、“”2。。。Fe0。、、。11.1、、1。1Tab．1DomesticsewagequalityCOD/mg·L－1TP/mg·L－1NH3－N/mg·L－1pH246～3244．95～6．7126．61～45．776～7．52865．8034．857．2Fe03～5mm12h。FeⅡFeSO4·7H2OFeⅢFeCl3·6H2O10mg/L。。MLSS3220mg/LMLVSS2496mg/LSVI117．2mL/g。1.24SBR1。15cm25cm5cm22cm5L4L。。pH、。5g/L1#2#90g/L63#10mg/LFeⅡ4#10mg/LFeⅢ。10mg/L·72·．watergasheat．com349FeⅡFeⅢ。1SBRFig．1SchematicdiagramofSBRequipment12h、11h、50min、10min1/2DO2～4mg/L16～21℃。12d。452COD、、TP53。1.31.3.1SOUR250mLDO8mg/L30sDO2mg/L—OURSOUR=OUR/MLSS。1.3.250mL250mL3。2mLTirS－HCl、0．1mol/L、0．5%TTC2mL37±1℃4h。25mL4000r/min5min。1h1μgTF。1.3.3MLSS105℃MLVSS600℃=MLSS－MLVSS/MLSSSVICODTP－。22.1。MLSSMLVSS。2.1.1MLSSMLSSMLSS3500mg/L3000～4000mg/L。MLSS3213mg/LMLSS2。MLSSMLSS5637mg/L2424mg/LFeⅢMLSS4932mg/L1719mg/LFeⅡMLSSMLSS1469mg/L。2MLSSFig．2EffectofdifferentvalentirononMLSS2.1.2MLVSSMLVSSMLSS。MLVSS2506mg/L3。FeⅡ、FeⅢMLVSS400mg/L·82·349．watergasheat．com29．4%3244mg/L。3MLVSSFig．3EffectofdifferentvalentirononMLVSSMLVSS/MLSSMLVSS/MLSS0．75。MLVSSMLSSMLVSS/MLSS。MLVSS/MLSS0．78、FeⅡ、FeⅢMLVSS/MLSS0．58、0．61、0．590．2、0．17、0．19。22%42%、39%、41%。FePO4、Fe－P－OHMLVSS/MLSS3。FeⅢFeⅢFeⅢ。FeⅢFeⅡ。78FeⅡ、FeⅢFeⅢ2。2Tab．2Concentrationofferricionindifferentvalentironreactorsmg·L－1FeⅡFeⅢFe2+0．540．630．38Fe3+8．635．545．11Fe2+17．5421．3720．73Fe3+80．7833．5442．72.22.2.1SOURSOUR8～20mgO2/gMLVSS·h。SOUR94。4SOURFig．4EffectofdifferentvalentirononSOUR4SOURSOURSOUR。SOUR13．4mgO2/gMLVSS·h、FeⅡ、FeⅢSOUR17．2、16、16．2mgO2/gMLVSS·h28．4%、19．4%、20．9%。。SOUR。。1。2.2.2。。。MLVSS/MLSS·92·．watergasheat．com349。DHA5。DHA9．92mgTTC/L·h、FeⅡ、FeⅢDHA18．31、14．27、15mgTTC/L·h84．6%、43．9%、51．2%。DHACOD。、“”。5Fig．5Effectofdifferentvalentironondehydrogenaseactivity2.3SVI、。SVI70～100mL/gSVI＞200mL/g。SVISVI。SVISVI6。SVI127mL/g、FeⅡ、FeⅢSVI87、97、91mL/g。10。SVI。。FeⅢFeⅡSVI。2FeⅢSVI。6Fig．6EffectofdifferentvalentirononSVI。、。SVI。。2.42.4.1CODCOD。45COD50mg/L《》GB18918—2002A。COD72．3%、FeⅡ、FeⅢCOD85．6%、81．7%、78．4%。13．3%。。HFeⅡ。COD。·03·349．watergasheat．com2.4.28．7mg/L80．3%、FeⅡ、FeⅢ4．3、5．4、6．3mg/L87．9%、85%、82．3%。7．6%A。。2。。。5～20mg/L80mg/L。7Alcaligenessp．。。2.4.3TPTP39%TP3～4mg/L7。TPFeⅡ、FeⅢTPTP70%、74%31%、35%TPTP0．5mg/LA91．8%52．8%。MLVSS/MLSS。4811FeⅡ、FeⅢ。FeⅡFeⅡFeⅢFePO4、Fe2．5PO4OH4．5Fe1．6H2PO4OH3．8。7TPFig．7EffectofdifferentvalentirononTPremoval3①MLSS、MLVSSMLVSS/MLSS。SOUR。SVI。②MLSS2424mg/LMLVSS738mg/L28．4%84．6%SVI87mL/g。③。COD。SBRCOD、、TP13．3%、7．6%、52．8%COD、、TPA。④。FeⅡ、FeⅢ。、、、·13·．watergasheat．com349。1．J．201127324－28．RenXuefengBiXuejunChengLihuaetal．ResearchonenhancedbiologicalnitrogenandphosphorusremovalbycompoundferricenzymaticactivatedsludgeJ．Chi-naWater＆Wastewater201127324－28inChi-nese．2．/J．20132923124－127．LiJieLiWenxuanWeiZhiyongetal．Mechanismofcooperativephosphorusremovalbyspongeironandmi-croorganismsJ．ChinaWater＆Wastewater20132923124－127inChinese．3OikonomidisIBurrowsLJCarliell-MarquetCM．ModeofactionofferricandferrousironsaltsinactivatedsludgeJ．JChemTechnolBiotechnol20108581067－1076．4KharchenkoUVBelenevaIAKarpovVAetal．Mi-crobiologicalactivityoffoulingcommunitiesasindicatorofbiocorrosionaggressivenessofseawaterJ．Protec-tionofMetalsandPhysicalChemistryofSurfaces2010467842－845．5WuDLShenYHDingAQetal．Effectsofnanoscalezero-valentironparticlesonbiologicalnitrogenandphos-phorusremovalandmicroorganismsinactivatedsludgeJ．JHazardMater2013262649－655．6LiuHBChenTHZouXHetal．Removalofphos-phorususingNZVIderivedfromreducingnaturalgoe-thiteJ．ChemEngJ20132341280－87．7．Fe0SBBRJ．20136482996－3002．WangYa’eLiJieZhaiSiyuanetal．EffectofFe0onacrylicfiberwastewatertreatmentinSBBRJ．CIESCJournal20136482996－3002inChinese．8．J．200723197－100．LiJieWangYa’