生物倍增工艺实际生产运行工况优化探讨-田海宁

1231．3003842．1500903．300040。0．02～0．05kgCOD/kgMLSS·dCODCr69．8mg/L65．9%0．06kgCOD/kgMLSS·d100%SVI50～70C/N。C/NX703A1673－9353201206－0023－04doi10．3969/j．issn．1673－9353．2012．06．007Discussiononoperationoptimizationofbio-doublingprocessforpracticalapplicationTianHaining1ZhouChengjin2HeWenjie31．DepartmentofEnvironmentalandMunicipalEngineeringTianjinInstituteofUrbanConstructionTianjin300384China2．SchoolofMunicipalandEnvironmentalEngineeringHarbinInstituteofTechnologyHarbin150090China3．TianjinWaterworksCroupCo．Ltd．Tianjin300040ChinaAbstractThepracticalefficiencytotreaturbansewagewasinvestigatedbybio-doublingprocess．Theresultsshowedthatthelowsludgeloadingoperationof0．02to0．05kgCOD/kgMLSS·dwasnotbeneficialtothestableremovaloforganics．TheeffluentCODCrwas69．8mg/Lwiththeaverageremovalrateof65．9%only．Sludgeloadingshouldbemaintainedgreaterthan0．06kgCOD/kgMLSS·datleastinordertofitthedischargestandardrequirement．Theremovalrateofammonianitrogenwas100%．SludgesettleabilitywasgoodandSVIvaluewaskeptstablyfrom50to70．HoweverlowC/Nratioofinfluentformedthemajorconstraintforsimultaneousremovalofnitrogenandphosphorus．Measuresofaddingcarbonsourceandauxiliarychemicalremovalofphosphoruswereproposedforimprovingtheremovalofnitrogenandphosphorustofitthedischargestandards．Keywordsbio-doublingprocessBDPurbansewagesludgeloadingC/NBio-DoublingProcessBDP1。BDP①、、、②③④⑤·32·66201212WATERTECHNOLOGYVol．6No．6Dec．20121Fig．1DiagrammaticlayoutofBDP。《》GB18918—2002。+。1．0×104m3A、BBDP。BDP。1CODCr≤400mg/LBOD5≤200mg/LSS≤200mg/LNH3－N≤35mg/LTN≤45mg/LTP≤5mg/LCODCr≤60mg/LBOD5≤20mg/LSS≤20mg/LNH3－N≤8mg/LTP≤1mg/L。《》GB18918—2002B。BBDP。B5000m3/d。44．1m×13．2m×6．2m5．7m3318m3。、、。18．0m×6．0m22．4m×6．0m1．2m×6．0m42．9m×6．0m。1。BDP1。1BDPTab．1DesignandoperationalparametersofBDPHRT/hF/MkgCOD·kg－1MLSS·dSRT/d/℃pHMLSS/g·L－1DO/mg·L－1BOD/CODC/N16≥306～95～80．320～210．02～0．0621～257．3～7．75～80．3～0．40．52～62HRT、DOF/MC/N。2011822—1020800。MLSS、MLVSS、CODCr、BOD5、NH3－N、TN、TP、SS、SVI2DOHACH－HQ30dJNOECXSP－24N。33.1CODCrCODCr2。CODCr70%～90%80%CODCr44mg/LB。8—9MLSS7．0～8．3mg/L0．02～0．05kgCOD/kgMLSS·dCODCr。2CODCrFig．2EffectofsludgeloadingonremovalrateofCODCrBDP。。10·42·662012121—13CODCrCODCr69．8mg/L65．9%。1020．06kgCOD/kgMLSS·dCODCr。0．06kgCOD/kgMLSS·d。3.2SS3。SSF/M、。F/MSS。3F/M0．03～0．06kgCOD/kgMLSS·dSS20mg/LF/M。3SSFig．3EffectofsludgeloadingonSSSVI4。4SVIFig．4EffectofsludgeloadingonSVI4SVI50～70mL/g。。BDPDO。3.35。0．004～0．013kgCOD/kgMLSS·d。80%～100%。BDPSRT。5Fig．5Effectofamminianitrogenloadingonremovalofamminianitrogen3.4C/NTNTPC/NTNTP6。6C/NTNTPFig．6EffectofC/NonremovalofTNandTP6C/N3～550%～70%·52·2012126640%～60%。C/N8～15。F/M3。。4①。②CODCODCrCODCr69．8mg/LCODCr65．9%0．06kgCOD/kgMLSS·d。③100%。C/N。1．D．2005．2《》．4M．2002．3．A/OJ．200521980－82．1987－。[e-mail]2012－10－2422J．201127771－74．4．M．2009．5．J．20072323104－108．6．J．200827116－19．7．J．2011402343－345．8．J．200726346－48．1987－。[e-mail]2012－07－23·62·66201212