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19519989ENVIRONMENTALSCIENCEVol.19,No.5Sep.,1998*张淑琪 刘彦竹 胡江泳 张锡辉 王占生(,100084)(AOC).,AOC413g/L,,.AOC7,AOC257g/L,AOC258g/L.AOC,AOC.,,,,,,.*(ProjectSupportedbyNa-tionalNaturalScienceFoundationofChina):59578018:,34,,:1997-12-16TheStudyontheBiologicalStabilityinDrinkingWaterbyOzoneOxidationZhangShuqiLiuYanzhuHuJiangyongZhangXihuiWangZhansheng(Dept.ofEnviron.Sci.andEng.,TsinghuaUniversity,Beijing100084)AbstractAssimibleorganiccarbon(AOC)testwasusedtostudytheinfluenceonthebiologi-calstabilityofdrinkingwaterbyozonationinawaterworkslocatedinacertainpetrochemicalindustrialarea.TheresultsshowedthattheconcentrationofAOCinrawwateris413g/L,itmeansthatbiologicalunstabilityexistsapparentlyintheundergroundsourcewaterandthesourcewaterispollutedbylocalindustry.TheconcentrationofAOCincreasessharplywithozonationandgoesupto3069g/L,however,itreducesto257g/Lbygranularactivatedcharcoalabsorption,afterdisinfectionbyozoneitmaintainsat258g/L.ThroughthetreatmentprocesstheconcentrationofAOCcanbedecreasedeffectively,therestillremainsbiologicalun-stabilityintheeffluentbecouseofthehighconcentrationofAOCinrawwater.Keywordsassimibleorganiccarbon,ozonation,biologicalstability,undergroundwater,sourcewater,granularactivatedcharcoal.,.,,,,,[1].,,,g/Lng/L,.(Assimibleorganiccarbon,AOC),,[1-3].,.1AOC,.AOC,AOC,.,(cloneformingunits,cfu),(Y)(gC/L)AOC.AOCP17(PseudonomasflucoP17strain)NOX(SpirllumNOXstrain).P17,()4.1106cfu/g.NOXP17,1.2107cfu/g.P17NOX,Lg.AOC.AOCVanderKooijAOC50g/L,.AOC54g/L,AOC130g/L85g/L,[4].,AOC100g/L.2(1).0.1mol,,2,5502h.4h,.(2)P17NOXVanderKooij.P17NOX3ml,5d,100l50ml400g/L,251,,.5,1.(3)2.1mg/L,0.4mg/L.,6530min,.24h,5.(4)AOC[2].50ml50ml,P17NOX104cfu/ml.:=104cfu/ml50mlcfu/ml()253d..2.:AOC=[(P17cfu/ml)/4.1106cfu+(NOXcfu/ml)/1.2107cfu]103g/L33.1,[5].1,,AOC413g/L.AOC20108g/L,51g/L[6],AOC317g/L,.1AOC/gL-1AOC-P17AOC-NOXAOC37835413O330547153069GAC23126257O323325258263292923.21,O3,AOC3069g/L,7.4,(granularactivatedcharcoal,GAC),AOC257g/L.O3AOC,[6,7].(),.O3355P17NOX,AOC.O3,GAC,AOC[8].GACAOC38%,O392%,GACO3,AOC,GACO3,,GAC.3.3,AOC,[2,3].AOC3,3040h,AOC,.,[9].1h,,AOC(1).,AOC100g/L,.4(1)O3AOC7,GAC,O3,O3AOC.(2)O3AOC,GAC,.1VanderKooijetal..SubstrateUtilizationbyanOxalate-ConsumingSpirillumSpeciesinRelationtoitsGrowthinOzonatedWater.AppliedandEnvironmentalMicrobiolo-gy,1984,47(3):5512LechevrallierMWetal..Bacterialnutrientsindrinkingwater.AppliedEnvironmentalMicrobiology,1991,57(3):8573VanderKooijetal..DeterminingtheConcentrationofEasilyAssimilableOrganicCarboninDrinkingWater.JournalAWWA,1982,74(10):5404LechevrallierMWetal..Developmentofarapidassimil-ableorganiccarbonmethodforwater.AppliedEnviron-mentalMicrobiology,1993,59(5);15265..(),1996,30(12):736LouisAKaplanetal..AsurveyofBOMinUSdrinkingwater.JournalAWWA,1994,86(2):1217HackerPAetal..Productionandremovalofassimilableorganiccarbonunderpilot-plantconditionsthroughtheuseofozonePEROXONE.ScienceandEngineering,1994,16(3):1978VanDerHoeketal..Minimizingbromateformationduringozone-activatedcarbontreatment.WaterSupply,1996,14(34):3719GibbsRAetal..AssimilableOrganicCarbonConcentra-tionsandBacterialNumbersinWaterDistributionSys-tem.WaterScienceandTechnology,1993,27(3,4):1593619