搜索
150090SBR//A/O/A013163mmSVIMLSS0630mm0515cm/sMLSS2500mg/LSVI90mL/gSBRX703C10004602201115008504StudyonCharacteristicsofGranularSludgeinDenitrifyingPhosphorusRemovalProcessZHANGXiao-xinQIUShanYANGJi-xianMAFangSchoolofMunicipalandEnvironmentalEngineeringHarbinInstituteofTechnologyHarbin150090ChinaAbstractToinvestigatetheformationofgranularsludgeindenitrifyingphosphorusremovalprocesssludgecharacteristicswerestudiedinanerobic/oxic/anoxicSBRduringthecultureperiodwithsyntheticwastewaterTheresultsshowthatthesludgeisbrownflocculentwithloosestructureandlowac-tivityinthefirststageInthesecondstagesmallgranulesbegintoappearandtherangeofparticlesizeis013to163mmTheMLSSandsettlingvelocityofsludgeareincreasedwhileSVIisdeclinedinthemeantimeBytheendofthefinalstagemostofthegranularsludgeisinregularsphericalorspheroidalshapeandtherangeofparticlesizeis06to30mmThesettlingvelocityvariesfrom05to15cm/sandtherelationofsettlingvelocitytoparticlesizefollowstheStocksLawapproximatelyTheMLSSis2500mg/LandtheSVIis90mL/gThegranularsludgehasgoodsettleabilityhighactivityandhighbiomassKeywordsdenitrifyingphosphorusremovalgranularsludgesludgecharacteristicsSBR50821002DPB13208058271520118CHINAWATERWASTEWATERVol27No15Aug20114Jiang5//SBRLin6SBRWu7SBR//A/O/A11.1A/O/ASBRSBR25cm50cm19L1100r/min1Fig1Schematicdiagramofexperimentsetup1.2COD270370mg/LNH4Cl5575mg/LKH2PO4PO34P515mg/LCaCl2Ca2+23mg/LMgSO4Mg2+8mg/L1mL/LHClNaOHpH7080A/OMLSS1700mg/L1.3110dCOD370755mg/L180min180min100108min102min1125dCOD3705515mg/L180min160min128min2min2660dCOD2705515mg/L180min140min148min2minHRT8h04m3/h1.4MLSSMLVSSSVI100SAS8SEM22.122SVIFig2VariationofsludgeconcentrationandSVI2SVI350mL/g10min2minSVI682715@sinacom20110120871J200319932342HuJYOngSLNgWJetalAnewmethodforchar-acterizingdenitrifyingphosphorusremovalbacteriabyu-singthreedifferenttypesofelectronacceptorsJWaterRes20033714346334713A2/OJ2008241511144AdavSSLeeDJShowKYetalAerobicgranularsludgeRecentadvancesJBiotechnolAdv20082654114235JiangXin-xinYangJi-xianMaFangetalDenitrifyingphosphorousremovalinanaerobic/anoxicSBRsystemwithdifferentstartupoperationmodeJJournalofHar-binInstituteofTechnology20101768248296LinYMLiuYTayJHDevelopmentandcharacteris-ticsofphosphorusaccumulatingmicrobialgranulesinse-quencingbatchreactorsJApplMicrobiolBiotechnol20036244304357WuCYPengYZWangSYetalEnhancedbiologicalphosphorusremovalbygranularsludgeFrommacro-tomicro-scaleJWaterRes20104438078148MoyBYPTayJHTohSKetalHighorganicloadinginfluencesthephysicalcharacteristicsofaerobicsludgegranulesJLettApplMicrobiol20023464074129LiuLiliWangZhipingYaoJieetalInvestigationontheformationandkineticsofglucose-fedaerobicgranularsludgeJEnzymeMicrobTechnol2005365/6712716Emailivychang867@hotmailcom20110418092715