CASS工艺中PAC强化除磷试验研究

CASSPAC1111122221．4300742．528415CASS《》GB18918—2002A。PACCFDPAC。1/230min4mg/LPACTPA4mg/LPAC。CASSPACX703C1000－4602201609－0135－05PhosphorusＲemovalEnhancedbyPACinCASSProcessandItsEffectonActivityofSludgeMADa1XIONGYa1LIUYan-peng1LIAng-ze1WANGZong-ping1OUWei-song2LIJian-hua2ZHONGYan-lin2HEWei-feng21．SchoolofEnvironmentalScienceandEngineeringHuazhongUniversityofScienceandTechnologyWuhan430074China2．XiaolanWaterCo．Ltd．Zhongshan528415ChinaAbstractCyclicactivatedsludgesystemCASSwasappliedinasouthernsewagetreatmentplantbutthetotalphosphorusineffluentcouldnotmeetthefirstlevelAcriteriaspecifiedintheDis-chargeStandardofPollutantsforMunicipalWastewaterTreatmentPlantGB18918－2002inwinter．TheeffectofPAConenhancingphosphorusremovalandtheactivityofsludgewasinvestigatedbythesimulationofCFD．Theresultsshowedthatadditionof4mg/LPACinthemiddleofaerationtank30minbeforestoppingaerationcouldmaketheeffluentTPmeetthefirstlevelAcriteria．Continuousadditionof4mg/LPACintheshorttermwouldinhibittheactivityofsludgebuthadnoadverseeffectoneffluentin-dexes．Keywordscyclicactivatedsludgesystem[e-mail]《》GB18918—2002A·531·32920165CHINAWATEＲ＆WASTEWATEＲVol．32No．9May2016。1～3。CASS。CASS。CASS1CASSPAC。11.1CASS61h2h45min1h15min。201311—2014311．5mg/L。1201311—20143Tab．1AveragequalityofinfluentandeffluentfromNovember2013toMarch2014COD/mg·L－1BOD5/mg·L－1/mg·L－1/mg·L－1/mg·L－1pH196104．53．9629．221．87．46255．30．7913．53．157．11.2CASSSBＲSBＲ12L。、、。430min30min2h30min15min15min。CASS。1.3TP、TN、NH3－N、COD、pH、OUＲ、SOUＲ、MLSSMLVSS。1.4①CFDCASS。②50、40、30、20、10min3．8mg/LPAC50、40、30、20、10minTP。③。1．5mg/L3．8mg/LPACAl2O30、1、2、3、4、5、6mg/LPACTP。④PAC6dPAC。7PAC36d。PACOUＲOUＲ。22.1CFDCASS。1。、。1/3、、L、B、Dvtd=vt=LBD/3BD=L/3。1CASSFig．1WaterflowstateinCASStankCFD·631·329．watergasheat．com1/2。2。。1/2。2.23．8mg/LPACTP2TP3．12mg/L。2TPTab．2EffectofTPremovalatdifferentcoagulantdosingtime/min1020304050TP/mg·L－10．610．560．480．500．55/%80．482．184．684．082．4230minPACTP。TP。TP。TP。20～30min。30minPAC。2.3PACTP3TP3．57mg/L。3TPTab．3EffectofTPremovalwithdifferentPACdosage/mg·L－10123456TP/mg·L－11．030．680．610．560．470．440．43/%71．181．082．984．386．887．788．03PAC4mg/LTPGB18918—2002A86．8%4～6mg/L4mg/L。1．5mg/L3．75mg/LAl3+OH－4PAC。2.4PAC2.4.1TPAPAC8mg/L230min。SOUＲSOUＲ2。2SOUＲFig．2VariationofSOUＲincontinuousculture227dSOUＲ27d23%。30%45%。TPCOD34。3TP80%TPGB18918—2002A7dPACTP80%。PACTP。4COD80%CODGB·731·．watergasheat．comCASSPAC32918918—2002A。PACCOD。COD。3TPFig．3VariationofTPremovalincontinuousculture4CODFig．4VariationofCODremovalincontinuousculture4TN55%NH3－N90%GB18918—2002A。DO5。DONH3－NNH3－NPAC。MLVSS/MLSSSVIMLVSS/MLSSSVI163．7%92mL/g58．5%86mL/g3。36d8mg/LPACPAC。COD、TP、TN、NH3－N。。PAC。2.4.2PACPAC4。PAC1020mg/L。4PACTab．4InhibitionofPACtoAOBandNOBactivityPACOUＲ/mgO2·L－1·min－110mg/LPAC20mg/LPACOUＲ/mgO2·L－1·min－1/%OUＲ/mgO2·L－1·min－1/%OUＲ0．850．6621．60．4941．8OUＲ0．130．0929．10．0834．5OUＲ0．080．0447．90．0454．04PAC10mg/L29．1%47．9%PAC20mg/L34．5%54．0%。PAC3Zhou1。3①CFD、、1/2。②PAC30min。③PAC·831·329．watergasheat．com4mg/L。④36dPAC。PAC。1ZhouZChenYXingCetal．Inhibitoryeffectsofsimul-taneouschemicalphosphorusremovalonmicrobialactivityintheunitankprocessJ．AdvMaterＲes2013610/6131672－1675．2．J．201129423－2545．3．J．201036638－41．4．pHJ．20101297．5BroughtonAPrattSShiltonA．Enhancedbiologicalph-osphorusremovalforhigh-strengthwastewaterwithalowrbCOD∶PratioJ．BioresourTechnol20089951236－1241．1992－。[e-mail]櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆櫆2015－12－1213412BennisSCrobedduE．NewrunoffsimulationmodelforsmallurbancatchmentsJ．JHydrolEng2007125540－544．13NasrABruenMJordanPetal．AcomparisonofSWATHSPFandSHETＲAN/GOPCformodellingphos-phorusexportfromthreecatchmentsinIrelandJ．Wa-terＲes20074151065－1073．14．J．2004243270－274．15LenhartLEckhardtKFohrerNetal．ComparisonoftwodifferentapproachesofsensitivityanalysisJ．PhysChemEarth2002279645－654．16BarcoJWongKMStenstromM．AutomaticcalibrationoftheU．S．EPASWMMModelforalargeurbancatch-mentJ．JHydraulEng20081344466－474．17．J．2011314717－723．18．SWMMJ．201228145－48．1989－。[e-mail]2015－11－10·931·．watergasheat．comCASSPAC329