化学混凝对两级曝气生物滤池出水的除磷效果研究

1,1,1,2,1,1(1.,250100;2.,100084):,,(PFS),PFS(PAM),,PAM,130mg/LPFSTP1mg/L,PFS9095mg/LTP1mg/L,0.5mg/L:;;PFS;PAM;;:X703:C:1000-4602(2007)05-0054-05StudyonChemicalCoagulationProcessforPhosphorusRemovalfromEffluentofTwo2stageBiologicalAeratedFilterLIWei2wei1,GAOBao2yu1,XUChun2hua1,LUJia2,QIUJi2cai1,YUEQin2yan1(1.SchoolofEnvironmentalScienceandEngineering,ShandongUniversity,Jinan250100,China;2.DepartmentofEnvironmentalScienceandEngineering,TsinghuaUniversity,Beijing100084,China)Abstract:Tosolvelowphosphorusremovalefficiencyoftwo2stagebiologicalaeratedfilterintrea2tingmunicipalwastewater,thechemicalcoagulationprocesswasusedtotreatitseffluent.Polyferricsul2fate(PFS)andpolyacrylamide(PAM)werechosenascoagulantandcoagulantaidrespectivelyinjartests,andtheeffectsofdosagesofPFSandPAMonchemicalphosphorusremovalwerestudied.Thephosphorusremovalefficienciesofcoagulation,sedimentationandfiltrationprocesseswereinvestigatedthroughpilot2scaletest.TheresultsshowthatdosingPAMcannotimprovecoagulationefficiencyofPFS;theeffluentTPislessthan1mg/LwhenusingPFSof130mg/Laloneinjartests.Undertheconditionofstableoperationofthebiologicaltreatmentunit,theeffluentTPandtotalironarelessthan1mg/Land0.5mg/LrespectivelywhenthedosageofPFSis90-95mg/Linthepilot2scaletest.Keywords:chemicalphosphorusremoval;coagulation;PFS;PAM;pilot2scaletest;rapidfilter:(863)(2003AA601080)(BAF),,BAF,(PFS),4523520073CHINAWATER&WASTEWATERVol.23No.5Mar.2007©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(Fe3+22%);PAM(90%95%);(NH4)6Mo7O244H2O(AR);K(SbO)C4H4O61/2H2O(AR);(AR)11112(200r/min)500mLPFS(PFS),1min,(60r/min)10min,10min,TPTP;;[1]11211211,1m3/h,11Fig.1Schematicdiagramofchemicalcoagulationprocessinphosphorusremoval,6kPa;,4mm,1.8m0.4m0.95m,45min;,400mm,3.1m,0.3m1.5m0.8m0.5m;,0.51.0mm11212,,TP1.5112.7mg/L,/TP0.600.76,,221121111PFS:9.81mg/L,TP10.46mg/L,45,4.54NTUPFS22PFSFig.2EffectofdifferentdosagesofPFSonphosphorusremoval2,,PFS:130mg/LTP90%,TP1mg/L,(GB/T199232005)2,,TPPFS,PFS120mg/L,,,,,,TP[2],PFS,(1)1PFSTab.1EffectofPFSdosageoncolorandresidualironPFS/(mgL-1)120130140150160170/303020252525/(mgL-1)0.720.810.900.991.091.07,PFS,PFS130mg/L1,130mg/LPFS,0.81mg/L,,,()1,PFS,,3055:235©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(CPAM)(APAM)(PAM)PFSPFS140mg/L,CPAMAPAMPAMPFS33PFSFig.3EffectofcoagulantaidsonphosphorusremovalwithPFS3,CPAMAPAM,TPPAM,,[34]CPAMPFS,CPAMPO3-4FePO4;,CPAMPO3-4,,CPAM,PFSAPAMPFS,APAM,PO3-4,APAMFePO4,APAMPFSPAMPFSAPAMCPAMPAM1mg/L,PAM,PAM,PAM;PAM1mg/L,,1.2mg/L,PFS,PAM,1.2mg/LPAM,PFS,PAM21221211,,,TP34mg/L,/TP0.60.7,,PFS9095mg/L,4TP,()TP,3.86mg/L,PFS93mg/L4PFS93mg/LFig.4ContinuousoperationwithPFSdosageof93mg/L4,2h,TP1mg/L,,TP,TP0.5mg/L;,,0.5mg/L65235©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.中国城镇水网(,0.5mg/L,0.3mg/L),TP()(),9095mg/LPFSTPTP7.42mg/L95mg/LPFS,TP1mg/L,PFS,TP,,,/TP,,,(0.050.2mg/L)95mg/LPFS,,,,TP,[5],TP,150mg/LPFSTP,2,PFS,,,2PFS150mg/LTab.2ContinuousoperationwithPFSdosageof150mg/L/h1245678TP/(mgL-1)1.020.870.770.400.540.220.31/(mgL-1)0.310.460.530.590.640.740.77,,TPPFS,,,TP,PO3-4-P,,,,PFS,(Fe2+/0.1),,0.56mg/L0.19mg/L,66%,,21212,1214h,PFS100mg/L,,810h8min,8m3/h3%5%(100m335m3),,1.5h1min,,98%,,,,21213,,PFS1600/t,95mg/L,0.152/m3;0.025kW,0.579/(kWh),0.014/m30.166/m3,,,0.250.30/m3,(+++)35%3(61)75:235©1994-2007ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(9.512),AHRCOD36.13%,UASB,AHRCOD:[1]SeghezzoL,ZeemanG,JulesBvanLier,etal.Areview:theanaerobictreatmentofsewageinUASBandEGSBre2actors[J].BioresourTechnol,1998,65(3):175-190.[2]LettingaG,RebacS,ZeemanG.Challengeofpsychroph2ilicanaerobicwastewatertreatment[J].TrendsBiotechn2ol,2001,19(9):363-370.[3]KalkerTJJ,MassJAW,ZwaagRR.Transferandac2ceptanceofUASBtechnologyfordomesticwastewater:Twocasestudies[J].WaterSciTechnol,1999,39(5):219-225.[4]MironY,ZeemanG,vanLier,etal.Theroleofsludgeresidencetimeinthehydrolysisoflipids,carbohydratesandproteinsduringtheanaerobictreatmentofdomesticsewage[J].WaterRes,2000,34(4):1705-1713.[5]ZeemanG,LettingaG.Theroleofanaerobicdigestionofdomesticsewageinclosingthewaterandnutrientcycleatcommunitylevel[J].WaterSciTechnol,1999,39(5):187-194.[6]ElmitwalliTA,SklyarV,ZeemanG,etal.Lowtempera2turepre2treatmentofdomesticsewageinananaerobichy2bridorananaerobicfilterreactor[J].BioresourTechnol,2002,82(3):233-239.[7]SollfrankU,KappelerJ,GujerW.Temperatureeffectsonwastewatercharacterizationandthereleaseofsolubleinertorganicmaterial[J].WaterSciTechnol,1992,25(6):33-41.[8]NachaiyasitS,StucheyDC.Effectoflowtemperaturesontheperformanceofananaerobicbaffledreactor(ABR)[J].JChemTechnolBiotechnol,1997,69(2):276-284.[9]SchienerP,NachaiyasitS,StuckeyDC.Productionofsol2ublemicrobial