高盐好氧颗粒污泥低温储存后活性恢复研究陈垚

1221221．4000742．400074。6“→→→”1、、、。X703A1000－4602201505－0022－04ActivityＲecoveryofHypersalineAerobicGranularSludgeafterLowTemperatureStorageCHENYao12ZHANGZhi-min2YUANShao-chun12ZHUJia-yue21．NationalInlandWaterwayＲegulationEngineeringＲesearchCenterChongqingJiaotongUniversityChongqing400074China2．SchoolofＲiverandOceanEngineeringChongqingJiaotongUniversityChongqing400074ChinaAbstractTheactivityrecoveryofthehypersalineaerobicgranularsludgeafterlowtemperaturestoragewasstudiedbyslowlyincreasingtheinfluentorganicload．Theresultsindicatedthattheexternalfeaturesofthehypersalineaerobicgranularsludgewasstilllargelyintactafterlowtemperaturestorageforsixweeks．Howeveritscolorandinternalstructurechangedgreatly．Especiallyintherecoveryprocessthegranularsludgeexperiencedaprocessofparticledisintegration→debrisparticles→filamentousbacteria-likeparticles→densegranules．Aftermorethanone-monthrecoverycultivationthesettleabilitydehy-drogenaseactivityandnitrificationcapacityofhypersalineaerobicgranularsludgereturnedtonormal．Duringtherecoverycultivationprocesscontrollingtheinfluentalkalinityaerationrateandsettlingtimecouldeffectivelycontrolthedecentralizedgrowthofparticlesandmaketheirgrowdensely．KeywordshypersalineaerobicgranularsludgefilamentousbacteriaactivityrecoveryKJ110403、、、、1。。。·22·31520153CHINAWATEＲ＆WASTEWATEＲVol．31No．5Mar．2015。2～4。。3%PP4℃。“”6。11.1SBＲ4．8cm105cm221．9L50%。。12h2min、、、3min。。1.23%COD900～4500mg/LNH+4－N45～225mg/LPO3－4－P5～25mg/LCa2+、Mg2+、FeSO4·7H2O、ZnCl2、MnCl2·4H2O、、CuSO4·5H2O20～100、26～130、0．10、0．10、0．14、0．09、0．03mg/LpH7．0～7．5。20．89mmSVI30．23mL/g4．79m/h39．27μgTF/gSS·h。1.315℃。6。C/N20∶1。1。1Tab．1Experimentaloperatingcondition/d0～77～1414～2121～2626～35/kgCOD·m－3·d－10．901．121．502．254．50DO/mg·L－14～54～55～65～65～6/℃20202025251.4TTC5。22.10．89mm0．377。1a。。。。35d1b。0．99mm0．376。“→→→”。a.b.35d1Fig．1Appearancecharacteristicofhypersalineaerobicgranularsludgebeforeandafterstorage2.2SVI2。14d14d·32·．watergasheat．com315SVI95．21mL/g0．26m/h。。14d、、、。21d。4．50kgCOD/m3·dSVI34mL/g3．83m/h。100806040200SVI/(mL·g－１)４.５４.03.53.02.52.01.51.00.5037101421263235t/d/（m·h-1）SVI2SVIFig．2VariationofminimumsettlingvelocityandSVIvaluewithoperationtime6“”。。17d1．12kgCOD/m3·d。。。6。EPS7。、、。。DO。EPS1。、。2.3“”5．42μgTF/gSS·h1/83。。。14d48．90μgTF/gSS·h。38μgTF/gSS·h。。60504030200/(滋gTF·g－１SS·h-1)371014212635t/d10323Fig．3Variationofdehydrogenaseactivitywithoperationtime2.4225mg/L81．8%。4。45mg/L·42·315．watergasheat．com78%。“”。。。。75mg/L62．58%。100806040200/%200160120037101421263235t/d/（mg·L-1）80404Fig．4VariationofNH3－Nremovalwithoperationtime。32d84．35%。225mg/L85%。3①6。“→→→”、。②“—”、、SVI34mL/g3．83m/h。③1。1/8148．90μgTF/gSS·h285%38μgTF/gSS·h。1．J．2009293449－473．2AdavSSLeeDJTayJH．ActivityandstructureofstoredaerobicgranulesJ．EnvironTechnol200728111227－1235．3．J．2008241916－19．4．J．2012661975－1979．5．J．200622180－83．6．J．20093072030－2034．7．J．201329238－13．1983－。[e-mail]2014－11－25·52·．watergasheat．com315