反硝化聚磷体系中颗粒污泥的特性研究张晓昕

150090SBR//A/O/A、。0．13～1．63mmSVIMLSS0．6～3．0mm0．5～1．5cm/sMLSS2500mg/LSVI90mL/g、、。SBRX703C1000－4602201115－0085－04StudyonCharacteristicsofGranularSludgeinDenitrifyingPhosphorusRemovalProcessZHANGXiao-xinQIUShanYANGJi-xianMAFangSchoolofMunicipalandEnvironmentalEngineeringHarbinInstituteofTechnologyHarbin150090ChinaAbstractToinvestigatetheformationofgranularsludgeindenitrifyingphosphorusremovalprocesssludgecharacteristicswerestudiedinanerobic/oxic/anoxicSBRduringthecultureperiodwithsyntheticwastewater．Theresultsshowthatthesludgeisbrownflocculentwithloosestructureandlowac-tivityinthefirststage．Inthesecondstagesmallgranulesbegintoappearandtherangeofparticlesizeis0．13to1．63mm．TheMLSSandsettlingvelocityofsludgeareincreasedwhileSVIisdeclinedinthemeantime．Bytheendofthefinalstagemostofthegranularsludgeisinregularsphericalorspheroidalshapeandtherangeofparticlesizeis0．6to3．0mm．Thesettlingvelocityvariesfrom0．5to1．5cm/sandtherelationofsettlingvelocitytoparticlesizefollowstheStocksLawapproximately．TheMLSSis2500mg/LandtheSVIis90mL/g．Thegranularsludgehasgoodsettleabilityhighactivityandhighbiomass．KeywordsdenitrifyingphosphorusremovalgranularsludgesludgecharacteristicsSBR50821002DPB“”、、1～3。2080·58·271520118CHINAWATER＆WASTEWATERVol．27No．15Aug．2011。、、、、。4。Jiang5//SBR。Lin6SBR。Wu7。SBR//A/O/A。11.1A/O/ASBR。SBR25cm、50cm19L1。100r/min。1Fig．1Schematicdiagramofexperimentsetup1.2COD270～370mg/L、NH4Cl55～75mg/L、KH2PO4PO3－4－P5～15mg/L、CaCl2Ca2+23mg/L、MgSO4Mg2+8mg/L1mL/L。HClNaOHpH7．0～8．0。A/OMLSS1700mg/L。1.3。1～10dCOD、370、755mg/L180min、180min、100～108min、10～2min11～25dCOD、370、5515mg/L180min、160min、128min、2min26～60dCOD、270、5515mg/L180min、140min、148min、2min。HRT8h0．4m3/h。1.4MLSS、MLVSS、SVI。100SAS。8。SEM。22.12。2SVIFig．2VariationofsludgeconcentrationandSVI2SVI350mL/g。10min2minSVI·68·2715．watergasheat．com。SVI。MLSS2500mg/LSVI90mL/g。。2.2。SAS0．13～1．63mm0．38～0．88mm。SAS0．6～3．0mm0．9～1．5mm。2.33。3Fig．3RelationshipbetweensettlingvelocityandparticlesizeofgranularsludgeLiu9。＜1．8mm0．5～1．5cm/s＞1．8mm1．0cm/s0．2～0．3cm/s。。2.4。。、。。3SVI。。0．13～1．63mm。、0．6～3．0mm＜1．8mm0．5～1．5cm/s＞1．8mm1．0cm/s。MLSS2500mg/LSVI90mL/g、、。90·78·．watergasheat．com2715。3。、。。1AdavSSLeeDJShowKYetal．AerobicgranularsludgeRecentadvancesJ．BiotechnolAdv2008265411－423．2．J．2009293449－473．3LiJGarnyKNeuTetal．Comparisonofsomecharac-teristicsofaerobicgranulesandsludgeflocsfromsequen-cingbatchreactorsJ．WaterSciTechnol2007558/9403－411．4ZhengYMYuHQShengGP．Physicalandchemicalcharacteristicsofgranularactivatedsludgefromasequen-cingbatchairliftreactorJ．ProcessBiochem2005402645－650．5．J．200728112657－2664．6LiuYYangSFTayJH．Improvedstabilityofaerobicgranulesbyselectingslow-growingnitrifyingbacteriaJ．JBiotechnol20041082161－169．7LiuYXuHLYangSF．Mechanismsandmodelforan-aerobicgranulationinupflowanaerobicsludgeblanke[e-mail]櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵櫵2011－01－20871．J．200319932－34．2HuJYOngSLNgWJetal．Anewmethodforchar-acterizingdenitrifyingphosphorusremovalbacteriabyu-singthreedifferenttypesofelectronacceptorsJ．WaterRes200337143463－3471．3．A2/OJ．2008241511－14．4AdavSSLeeDJShowKYetal．AerobicgranularsludgeRecentadvancesJ．BiotechnolAdv2008265411－423．5JiangXin-xinYangJi-xianMaFangetal．Denitrifyingphosphorousremovalinanaerobic/anoxicSBRsystemwithdifferentstartupoperationmodeJ．JournalofHar-binInstituteofTechnology2010176824－829．6LinYMLiuYTayJH．Developmentandcharacteris-ticsofphosphorusaccumulatingmicrobialgranulesinse-quencingbatchreactorsJ．ApplMicrobiolBiotechnol2003624430－435．7WuCYPengYZWangSYetal．EnhancedbiologicalphosphorusremovalbygranularsludgeFrommacro-tomicro-scaleJ．WaterRes2010443807－814．8MoyBYPTayJHTohSKetal．HighorganicloadinginfluencesthephysicalcharacteristicsofaerobicsludgegranulesJ．LettApplMicrobiol2002346407－412．9LiuLiliWangZhipingYaoJieetal．Investigationontheformationandkineticsofglucose-fedaerobicgranularsludgeJ．EnzymeMicrobTechnol2005365/[e-mail]2011－04－18·09·2715．watergasheat．com