Fenton氧化絮凝预处理糖精钠生产废水吴慧芳

Fenton吴慧芳1　梅凯1　孔火良2　王世和3(1.　210009;　2.　210094;3.　210096)　　　　Fenton,H2O2、FeSO4、pH、、pH5,,BOD5/CODcr0.150.49,CODcr40%,。　　　Fenton　　　FentonAgentOxidationandCoagulationPre-treatmentofSaccharinSodiumWasteWaterintheProductionWuHuifang1　MeiKai1　KongHuoliang2　WangShihe3(1.CollegeofUrbanConstructionandSafetyEnvironment,NanjingUniversityofTechnology　Nanjing210009)Abstract　InFentonagentoxidationandcoagulationpre-treatmentofsaccharinsodiumproducedwastewater,thecrossedexperimentsaremadeincludingfivefactors,suchasdosageofH2O2andFeSO4,thevalueofoxidationpHandcoagulationpH,oxidationtimeandsoon.TheresultsshowthatthevalueofBOD5/CODcrisraisedfrom0.15to0.49andsimultaneouslytheremovalrateofCODcris40%.Keywords　Fentonagent　coagulation　un-biodegradation　biodegradable　　,,,;,。,,、、,。,,、、。,,。Fenton。1894H.J.HFenton[1],Fenton。2070,R.O.CNormanC.Walling,Fenton·OH。2060Eisen-hauerFenton,Fenton[2～5]。[6],COD70%,91%,BOD5/CODcr0.0680.86,,。,。,,,Fenton,。,,,,,、,,。1　1.1　,,,300～500,。、,、、,、,,NaHCO3,。、、1。,、、、、、、、、、4,510t。、、、、,、,,。1.2　Fenton2。、[7],[8]。Fenton、、。·14·　　　　　　　　　IndustrialSafetyandEnvironmentalProtection　　　　　　　　2004303March20041　、、2　Fenton1.3　5:H2O2、FeSO4、pH、、pH,4,L16(45)。:、LRH-150B、H2O2、FeSO4·7H2O、NaOH。:,pH,FeSO4H2O2,,,pHpH,,。,CODcr,BOD5。2　FentonFenton,Fe2+H2O2,,,:　　　Fe2++H2O2※Fe3++·OH+OH-　　　Fe3++H2O2※Fe2++·HO2+H+　　　Fe2++·OH※Fe3++OH-　　　Fe3++·HO2※Fe2++O2+H+　　　·OH+H2O2※H2O+·HO2　　　·HO2※·O-2+H+　　　·O-2+H2O2※O2+OH-+·OH,·OH、·HO2、·O-2,,:·OH+H++e※H2O,Υ0=2.80V,F2。(569.3kJ),,·OH,,。:　　　　R-H+·OH※R·+H2O　　　　X-+·OH※·X+OH-R··X,,,。[9],,,。,,,。3　CODcr=34734mg/L,BOD5=5358mg/L,BOD5/CODcr=0.15,pH=0.32。1。BOD5/CODcr,:pHH2O2pHFeSO4。:H2O41200mg/L,Fe-SO4(Fe2+)[7],pH4,60min,pH7。FentonBOD5/CODcr0.150.49,CODcr40%。1,BOD5/CODcr3。3(a),H2O2,BOD5/CODcr,,0.3。H2O2Fe2+·OH,。,H2O2,,。3(b),FeSO4BOD5/CODcr,0.35,Fe2+(,Fe2+)。3(c),pH1～3,pH=4,。pH,,pH,·OH,。3(d),60min,BOD5/CODcr0.38,,·OH,BOD5/CODcr,120minBOD5/CODcr(0.3),·OH,BOD5/CODcr,150min0.4。3(e),pH7.0,,pH,·15·1　FentonH2O2/(mg·L-1)FeSO4/(g·L-1)pH/minpHBOD5/(mg·L-1)CODcr/(mg·L-1)BOD5/CODcr1600016069300274030.3392600129079942296290.33636002312088963319870.28046003415099550231830.4125120002120910325301020.343612001115089250235870.392712002460711963243320.49281200339066800245070.277924000315077782180940.4301024001412066959241130.289112400219098079212760.380122400326088134223630.364133600049087925239380.331143600136097517230720.3261536002215077663221330.3461636003112065459206460.264K11.3671.4431.3751.5211.169K21.5041.3431.3891.3241.604K31.4631.4981.3131.1761.367K41.2671.3171.5241.5801.461k10.3420.3610.3440.3800.292k20.3760.3360.3470.3310.491k30.3660.3750.3280.2940.342k40.3170.3290.3810.3950.365R0.0590.0460.0530.1010.1093　BOD5/CODcr,,,。4　(1)Fenton,BOD5/CODcr0.150.49,CODcr40%。Fenton,Fenton,,,,。(2),,,,,,,。H2O2,。。H2O2,,Fenton,。,。(3)Fenton[10,11],Fenton,,。,,。(4)Fenton[12],,、,,,(13)·16·2.4　3,,、、,,,;、,,;,,。,,、、、,,、、。MikeWorrall[6],,1%,-27℃(133.3Pa)87%,1.3×10-3,1.0×10-4,-80℃,,。,30℃99.9%,1.0×10-5,50%,。,。1、,2。、,,,,,。R.W.Baker、HCFC-123,HCFC-1236.3%0.01%,4[7]。3　,,4　、,,,,,,,,。,、、,,,。1　..:,19902　AtsushiKobayashi.VOCcontrol&treatmenttechnology.JICAMaterial,20023　..:,20014　K.Ohlorogge,J.Wind,R.D.Behling.Off-gasPurificationbyMeansofMembraneVaporPemeation.Sep.Sci.andTech.,1995,30:1625～16385　B.Xia,S.Majumdar,K.K.Sirdar.RegenerativeOilScrubbingofVolatileOrganicCompoundsfromaGasStreaminHollowFiberMembraneDe-vices.Ind.Eng.Chem.Res.,1999,38:3462～34726　MikeWorrall.CapturingOrganicVaporsfromNon-CondensableGasesUsingActivatedCarbonAdsopptionTechnology.ChemicalProcessing,1998,(1)7　R.W.Baker,V.L.Simmons,J.Kaschemekat,etal.MembraneSystemsforVOCRecoveryfromAirStreams.Filtration&Separation,1994,(5):231～235:高根煜,男,1992年毕业于成都科技大学环境工程系,现为镇海炼化股份有限公司安全环保处工程师,主要从事炼油环保管理工作。(:20030314)(16)Fenton。、、,,。Fenton,。1　R.JBigda,K.P.Elizardo.FentonChemistryRevival.ACSEnvironmentalChemistrySymposium,Washington,D.C.,1992,8:259～2622　PignatelloJ　J.Completeoxidationof2,4-DbyFenton'sreagent.Env-iron.Sci.Technol.,1990,24:3783　ZeppR.G,FaustB.C,HoigneJ.Hydroxylradicalfor-mationinaqueousreaction(pH3～8)ofironwithhydrogenperoxide:Thephoto-Fentonreaction.Environ.Sci.Technol.,1992,26(2):3134　ShenY.S,KuY,LeeKC.Theeffectoflightab-sorbanceonthedecom-positionofchlorophenolsbyultravi-oletradiationcombinedwithhydro-genperoxide.Wat.Res.,1995,29(3):9075　KuoW.G.DecolorizingdyewastewaterwithFentonreagent.Wat.Res.,1992,26(7):8816　,..,1997,19(6):33～367　,..,1998,11(1):14～168　,..,2002,28(4):235～2389　,,.Fenton.,1994,14(5)341～34510　,..,1997,17(6):4～611　,,.Fenton.,2001,27(105):11～1412　..:,1995,474～475:吴慧芳,女,在职博士,研究方向为水污染控制。(:20030506)·13·