Fenton试剂氧化法深度处理焦化废水的研究

©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(1.,200092;2.,200092):A2O,Fenton,Fenton,COD100340mg/L480940,COD(GB/T199232005),:pH2.5,4050,Fe2+0.4mmol/L,23h,H2O248mmol/L:;Fenton;;;:X703:C:1000-4602(2010)03-0093-03AdvancedTreatmentofCokingWastewaterbyFentonReagentOxidationProcessZHAOXiao2liang1,WEIHong2bin1,CHENLiang2cai2,ZHANGJian2ke2,JIAZhi2yu2(1.CollegeofEnvironmentalScienceandEngineering,TongjiUniversity,Shanghai200092,China;2.ShanghaiZhongyaoEnvironmentalProtectionIndustryCo.Ltd.,Shanghai200092,China)Abstract:TakingtheactualcokingwastewatertreatedbyA2Oprocessasresearchobject,theeffi2ciencyandinfluencingfactorsinadvancedtreatmentofthecokingwastewaterbyFentonreagentoxidationprocesswasinvestigated.TheresultsshowthattheFentonreagentoxidationprocesshashightreatmentefficiencyofcokingwastewater.WhentheinfluentCODis100to340mg/L,andcoloris480to940times,theeffluentCODandcolorcanreachtherequirementsoftheReuseofUrbanRecyclingWaterWaterQualityStandardforIndustrialUses(GB/T19923-2005).Theoptimaloperatingconditionsareasfollows:initialpHis2.5,reactiontemperatureis40to50,Fe2+dosageis0.4mmol/L,reactiontimeis2to3h,andH2O2dosageis4to8mmol/L.Keywords:cokingwastewater;Fentonreagent;oxidation;advancedtreatment;influen2cingfactors:(2009GH060062),,,[1],,[23],3926320102CHINAWATER&WASTEWATERVol.26No.3Feb.2010©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.[4],A2O,Fenton1111A2O,COD100340mg/L,48094011216L,6L,,0.2mol/LpH,0.05mol/LFe2+0.8mol/LH2O2,200mL,0.5mol/LpH9,80r/min10min,30min1Fig.1Schematicdiagramofexperimentalsetup113COD:;:XS-1;pH:PHS-2CpH2211pH2.5H2O28mmol/LFe2+0.4mmol/L6h(),Fen2ton,30,COD47.1%;40,COD65.3%;50,COD70%,H2O2O2H2O,,4050212pH50H2O28mmol/LFe2+0.4mmol/L,pHFenton,pH26,COD,pH2.5COD;pH6,COD,pH2.5FentonOH:Fe2++H2O2Fe3++OH-+OH(1)Fe2++OHFe3++OH-(2)Fe3++H2O2Fe2++HO2+H+(3)Fe3++HO2Fe2++O2+H+(4),Fenton,H+(1)OH-,OH,pH,(2),OH,(3),Fe2+,;,,OH-Fe2+,213Fe2+Fe2+,Fenton50pH2.5H2O28mmol/L,Fe2+Fenton,Fe2+1mmol/L,COD,Fe2+0.20.4mmol/LCOD:Fe2+,(2),OH;Fe2+,OH,Fe3+,Fe2+Fe3+,Fenton,Fenton,Fe2+,Fenton,,49263©1994-2010ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(4050),23h216Fenton,Fenton,,Fenton,;COD108298mg/L480870,COD39.157.8mg/L,2126,COD100340mg/L,H2O2,COD(GB/T199232005)3pHFe2+H2O2Fenton,:4050pH2.5Fe2+0.4mmol/LH2O248mmol/L23h,COD100340mg/L480940,COD(GB/T199232005)Fenton:[1],,.A2/O[J].,2007,23(14):4-7.[2],,,.[J].,2009,25(10):56-58.[3],.[J].,2008,24(20):73-76.[4],,,.UV/Fenton[J].,2006,22(5):84-87.:13918174049E-mail:[e-mail]:2009-09-1959:Fenton263