A2OMBBR系统的快速启动及反硝化除磷特性张淼

492Vol．49No．220173ADVANCEDENGINEEＲINGSCIENCESMar．2017··DOI10．15961/j．jsuese．201601151A2/O+MBBＲ1221121*1．1001242．225127A2/O+A2/O+MBBＲC/N。21d1189mg/L1760mg/LSVI95mL/gMLSSDNPAOsPAOs10．87%25．46%。CODA2/OTNNH+4－NPO3－4－PNO－3－NPO3－4－P。3．44A2/O+MBBＲ、、COD、NH+4－N、TNPO3－4－P38．5、1．15、14．2、0．15mg/LCOD、TNPO3－4－P82．23%74．72%96．80%。DO、pHOＲPOＲP－398～－336mVpH0．55OＲP－300～－175mVpH0．37。OＲP、pHpH。A2/O+X703A2096-3246201702-0240-08ＲapidStart-upandDenitrifyingPhosphorusＲemovalCharacteristicsofA2/O+MBBＲProcessZHANGMiao12HEChengda2WANGShuying1ZHANGJianhua1WUJun2PENGYongzhen1*1．NationalEng．Lab．forAdvancedMunicipalWastewaterTreatmentandＲeuseTechnol．Eng．ＲesearchCenterofBeijingBeijingUniv．ofTechnol．Beijing100124China2．CollegeofEnvironmentalSci．andEng．YangzhouUniv．Yangzhou225127ChinaAbstractAtwo-sludgesystemofA2/O+movingbedbiofilmreactorA2/O+MBBＲusedtotreatwastewaterwithlowcarbon/nitro-genC/Nratiowasappliedtoinvestigatethesludgecharacteristicsanddenitrifyingphosphorusremovalcharacteristicsduringthestart-upprocessandrapidstart-upstrategyofthesystemwasestablishedbasedonthemetabolicmechanismofnitrogenandphosphorusremovals．Theresultsshowedthatthestart-upprocesswascompletedby21dthesludgestructurewasstablewithpromisingsludgeset-tleabilityandbiologicalactivity．Theaveragesludgeconcentrationincreasedfrom1189mg/Lto1760mg/LSVIvaluewasbelow95mL/gMLSSandthepercentageofdenitrifyingphosphorusaccumulatingorganismsDNPAOsaccountedforphosphorusaccumulatingorganismsPAOsincreasedfrom10．87%ininoculationsludgeto25．46%．Duringthestart-upprocessCODremovalwasbasicallysta-bleandA2/Oreactorachievedtheefficientutilizationofcarbonsources．Nitrificationprocessprovidedelectronacceptorsfordenitrifyingphosphorusremovalandthehigh-efficiencyremovalofTNshouldbuildonthecompleteNH4－Noxidation．Aclosecorrelationbetween2016－10－18515780141989—[e-mail]*[e-mail]//jsuese．ijournals．cnhttp//jsuese．scu．edu．cnNO－3－NandPO3－4－Premovalswasrevealed．Inadditiontothesimultaneousnitrogenandphosphorusremovalsinanoxiczoneaero-bicphosphorusabsorptionplayedanimportantroleinkeepingstableeffluentPO3－4－Pundertheoperationconditionwithaverageinflu-entC/Nratioof3．44CODTNandPO3－4－Premovalsreachedto82．23%74．72%and96．80%respectivelyandtheeffluentcon-centrationsofCODNH+4－NTNandPO3－4－Pwere38．51．1514．20．15mg/LduringthestableoperationstagewhichshowedthattheA2/O+MBBＲsystemachievedhigh-efficientremovalsoforganicmatternitrogenandphosphorussimultaneously．Where．Thevariationsofreal-timecontrolparametersofDOpHandOＲPexhibitedquantitativerelationshipwithnitrogenandphosphorusremovals．DuringthestableoperationanaerobicOＲPvaluewas－398～－336mVpHincreasedby0．55andOＲPincreasedto－300～－175mVindenitrificationprocessandpHdecreasedby0．37innitrificationprocess．OＲPandpHintuitivelyreflectedthedenitrificationprocessandpHsensitivelyrevealedthenitrificationprocess．Ｒeal-timecontrolparameterswerebeneficialtopromotetherapidstart-upandstableoperation．Keywordsanaerobicanoxicoxic+movingbedbiofilmreactorstart-upsludgesettleabilitydenitrifyingphosphorusremovalreal-timecontrolparameters8×109～9×109t/a1。50%2、、3。。4A2ODO0．42m3/h0．32m3/h25%。C/N“”50%5。A2/O+A2/O+MBBＲA2/O－A2/O－BAF6。7DNPAOs25dA2N2、。MBBＲA2/O+MBBＲA2/O+MBBＲ。11．1A2/O+MBBＲA2/O、、MBBＲ、1。A2/O742LAn、A1～A5、O1∶5∶1HＲT8h。A2/O15LA2/O100%。MBBＲA2/O300%12±2d。1A2/O+MBBＲFig．1SchematicforA2/O+MBBＲreactorMBBＲN1、N2、N318LΦ25mm×10mm0．96g/cm395%1200m2/m345%1422A2/O+MBBＲ3．5～4．5mg/L0．18～0．20m3/h1000～1300mg/L。、、、MBBＲYZ1515x。1．21。3．44。1Tab．1CharacteristicsofinfluentwastewaterCOD/mg·L－1NH+4－N/mg·L－1PO3－4－P/mg·L－1TN/mg·L－1145．08～261．4943．12～70．443．48～8．3842．72～70．972．52～4．7624．74～64．47208．4554．905．3856．203．4449．801．30．45μmLachatQuik－Chem8000LachatInstrumentMil-wau－keeUSAPO3－4－P、NH+4－N、NO－2－N、NO－3－NCOD5B－1CODTNTN/TOCMultiN/C3100AnalytikJenaAGSVI、MLSS、VSS《》A-mericanPublicHealthAssociationAPHA《StandardMethodsfortheExaminationofWaterandWasterwater》8MLSSpH、DO、OＲPWTWpH/Oxi340iWTWCompa-nyGermany-β-poly-β-hydroxyalkanoatesPHAAgilent6890NDB－19glycogenGLYOlympus_BX61。22．12A2/OMLSS、VSS/MLSSSVI。1189mg/L1760mg/L3400mg/L1300mg/LVSS/MLSS0．82。。SVI70～100A2/OSVI200mL/gMLSS。4SVI160mL/gMLSS12dSVI120mL/gMLSS21SVI95mL/gMLSS。10A2/O－BAF20dSVI100mL/gMLSS21d。2A2/OTab．2VariationsofsuspendedsolidsandsettleabilityintheA2/Oreactor/dMLSS/mg·L－1VSS/MLSSSVI/mL·gMLSS－14252583080011890．620．670．64159．78143．73150．72122990101099014310．760．700．80117．07111．32109．112134001302139517600．830．810．8294．0892．3494．792aA2/O。“”11“”。2bA2/O11。A2/O+MBBＲ/24249A2/OZoogloea12、。Andreasen13100。Wachtmeister14/DNPAOsPAOs10．87%25．46%DNPAOs。2A2/OFig．2MicroscopiccharacteristicsoftheA2/Osludge2．23aCOD188．6～240．1mg/LCOD82．23%。CODA2/OCOD45．9mg/LDNPAOs15。MBBＲDOA2/OCOD5～10mg/L。MBBＲNH+4－N10。19CODVFAPHAGLY。3bVFA104．1mg/L42．3mg/L60%CODPHAPHA61．33mgCOD/gVSS。A1A5COD50mg/LVFA40mg/LDNPAOsPHA15PHA43．8mgCOD/gVSS24．9mgCOD/gVSSGLYGLY140．4mgCOD/gVSS179．9mg-COD/gVSSPHA60%。CODA2/OMB-BＲ。3Fig．3Characteristicoforganicmatterremovalduringthestart-upprocess3422A2/O+MBBＲ2．34CODNH+4－NTN。12dNH+4－N81．20%NH+4－N6．16mg/LTNTN65．48%。15