UBF与UASB两相厌氧系统处理Zn5ASA医药废水的研究孙剑辉

:2000-05-26:(:001200216):(1957-),,,.UBFUASBZn5-ASA孙剑辉,倪利晓(,453002):UBFUASBZn5-ASA:UBFUSABHRT5195h11143h,UBFUASBOLR(COD)5814417101kg/(m3#d),SCODBOD590%95%,UBF,,,,:UBF;USAB;;;:X787:A:1001-6929(2001)02-0030-03StudyontheTreatmentofZn5-ASAMedicalWastewaterinaTwo-Phase(UBF-UASB)AnaerobicSystemSUNJian-hui,NILi-xiao(EnvironmentalScienceandEngineeringKeyOpenLaboratoryofHenanUniversities,CollegeofChemistryandEnvironmentalScience,HenanNormalUniversity,Xinxiang453002,China)Abstract:Atwo-phaseanaerobicsystemcomposedofUBFacidificationreactorwithironchipfilterandUASBmechanizationcantreatmedicalwastewaterfromproductionofZinc5-aminosalicylate(Zn5-ASA)ofhighconcentration.TheexperimentresultsshowedthatwhentheHRToftheUBFandUASBwascontrolledat5.95hand11.43hrespectively,theOLRofUBFandUASBreactorscouldCODhighlyreached58.44and17.01kg/(m3#d)respectively,andthetotalremovalrateofCODandBOD5wasabout90%and95%respectively.Fromtheseresults,thissystemhasadvantagesofstableoperationandhightreatmentefficiency.Inthesys-tem,theironchipfilteroftheUBFreactorcanefficientlyimprovethebio-degradationofthewastewaterbymicro-electrolysis,andcansavetheregularadjustingalkaliprocess.Thissystemmayopenanewmethodforthetreatmentoforganicwastewaterdifficulttodegrade.Keywords:UBF;UASB;ironchip;two-phaseanaerobic;medicalwastewater5-(Zn5-ASA),,,,(5-),,,pH[1],,UBF(UpflowBlan-ketFilter)[2]UASB(UpflowAnaerobicSludgeBlanket)[3]8070Zn5-ASA,[5]pH[4][6],142ResearchofEnvironmentalSciencesVol.14,No.2,2001DOI10.13198/j.res.2001.02.32.sunjh.009UBFUASB,,11.1UBF,,9145L,611L,312L;UASB,28175L,20191L,7184L,,(35?1)e11UBF-UASBFig.1UBFandUASBTwo-PhaseAnaerobicTreatmentsystem112Zn5-ASA,7000~9000,COD14~20g/L,BOD55g/L,BOD5/COD012~0126,,COD10g/L,KH2PO4,CODBNBP=200B5B1,Co,Ni,Mn,Zn,K,Cu,BH2SO4pH=514~516,NaHCO3113UBF,(2~4mm),,3,(VSS)32g/L,UBF128g,UASB448g114CODCOD,;(VFA);VSS;BOD5,pH[7]2211,35e(1e),,COD4~10g/L,,9d,UBFOLR(COD)41110kg/(m3#d),UASBOLR13127kg/(m3#d),COD97%~99%,COD10g/L,COD10%,20%,,,100%,,COD85%7,,COD(SCOD)8817%~9011%,,21221211UBFH2SO4pH514~516,UBFpH516~612,,UASBpH,COD711~12143g/LHRT6191~4163h,UBF(Ra)(HRT)22Fig.2RelationshipBetweenRaandHRT:HRT,HRT,,HRT5h,Ra,HRT5~6h,Ra40%312,:UBFUASBZn5-ASAUBF,OLR58144kg/(m3#d),COD16%~21%UBF,,BOD5/COD012~0126014~0148780%,,2,,UBF30L/d7L/d,SCOD92%~93%8118%,,,21212UASBUBF()UASB,11UASBTable1SteadyoperationdataofUASBmethanizationphaseHRT(h)COD(mg/L)(kg/(m3#d))(L/(L#d))SCOD(%)(mg/L)SCODVFABOD5BOD5(%)Ñ21800011.963.2990.47667.089295.6Ò18.08641511.772.9688.07881586.495.8Ó11.43810017.013.3990.18002112594.0Ô10.25815122.212.8264.429004952374.71,HRT(11143~21h),SCOD90%,VFA99118%~99176%,BOD594%~9518%Zn5-ASA,UASBHRT=18108h,,HRT11143h21213UBF-UASBUBFUASBZn5-ASACOD8g/L,pH514~516HRTUBF5195h,UASB11143h,UASB:pH712~810;SCOD018g/L,90%;VFA15mg/L,99172%;BOD58614mg/L,94%3a.UBF-UASB,9d,7Zn5-ASA(7~125g/L)HRT5~6h,OLR58144kg/(m3#d);HRT11143h,OLR17101kg/(m3#d),SCOD90%b.UBF,,,pH514~516516~612,BOD5/COD012~0126014~01487,UASB,c.UBF-UASBZn5-ASACOD8g/L,pH514~516,HRTUBF8g/L5195h,UASB11143h,SCOD,BOD5VFA90%,95%99%:[1],,.[J].,1990,10(4):304~308.[2]GuiotSR,VandenBergL.Performanceandbiomassretentionofanupflowanaerobicreactorcombiningasludgeblanketandfilter[J].BiotechnolLett,1984,6:161~164.[3]LettingG,vanVelsenAF,HobmaSW,etal.UseoftheUpflowSludgeBlanket(USB)reactorconceptforbiologicalwastewatertreatment.Biotecnol.Bioengng,1980,22:699~734.[4],,.[J].,1999,(2):18~20.[5],,./)))[J].,1998,18(4):220~223.[6],,,.[J].,1991,11(2):138~142.[7]56.[M].:,1989.3214