Fenton试剂降解选矿废水中残余黄药徐劲

　2005252　　　　　　　　　　　　　ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY[]2004-03-14;[]2004-09-10。[](50274034)。[](1974—),,,,。Fenton　,,　,(,510090)[]Fenton,、pH、Fe2+H2O2;4。,pHH2O2。60min、pH4、Fe2+20mg/L、H2O220mg/L、125mg/L,99.5%,COD87.5%。[]Fenton;;[]X703.1　　　[]A　　　[]1006-1878(2005)02-0125-03　　———(),[1],,。,,。[2]—,,,,。,(AOPs)[3～6]。AOPs,Fenton、、。Fenton,。1　实验部分1.1　PHS-25pH;;;COD;721;TU-1901。(125mg/L);(30%),;,。1.2　100mL125mg/L250mL,pH,、,,pH,10mL,[7],pHpH,COD。2　结果与讨论2.1　pHH2O215mg/L,Fe2+25mg/L,pH1。1,20min,,,H+Fenton,;pH4pH6pH8;3pH60min73.6%,54.4%53.7%,Fenton、。Fenton,pH,OH,Fe2+,pH,。2.2　Fe2+pH4,60min,H2O210mg/L,Fe2+2。2,Fe2+10mg/L,,90%。Fe2+H2O2;Fe2+,H2O2,,125　　　　　　ENVIRONMENTALPROTECTIONOFCHEMICALINDUSTRY　　　　　　200525;Fe2+,Fe2+H2O2;Fe2+,H2O2,Fe2+Fe3+,,。1　pH■———pH6;●———pH4;▲———pH8;2　Fe2+2.3　H2O2pH4,60min,Fe2+15mg/L,3。3,H2O25mg/L10mg/L,71.4%90.3%;H2O2,,H2O225mg/L,99.8%。3　H2O22.4　Fenton,OH,H2O2Fe2+pHOH,。,,L9(34)pH、H2O2、Fe2+。1,2。1　pHρ(H2O2)/(mgL-1)ρ(Fe2+)/(mgL-1)/min1620153024102090381510602　pHρ(H2O2)/(mgL-1)ρ(Fe2+)/(mgL-1)/minρ()/(mgL-1)1620153074.342610209081.643615106078.384420206028.975410103042.536415159031.297820109068.528810156077.369815203079.67K1j78.1257.2861.0065.51K2j34.2667.1863.4360.48K3j75.1863.1163.1461.58Rj43.869.902.435.03126　2.Fenton　　,,pH,H2O2,,Fe2+,:pH4,H2O220mg/L,Fe2+20mg/L,60min。,,0.59mg/L,99.5%。125mg/LCOD200mg/L,COD25mg/L,COD87.5%。3　结论a)Fenton。125mg/L、H2O220mg/L、Fe2+20mg/L、60min、pH4,99.5%,COD87.5%。,。b)pHFenton,H2O2。　　　1　..,1995,19(3):43～462　,,..:,2001,30(4):33～37,413　,..,1999,15(3):517～5184　,.Fenton.,1994,13(3):26～285　,,.Fenton.,1999,20(3):72～746　HishopDF,SternG.Hydrogenferoxidecatalyticoxidationofrefractoryorganicsinmunicipalwastewater.IECProcessDesignandDevelopment,1968,7(1):110～1177　,,..,1994,25(5):586～591DegradationofRemainderXanthateinFlotationWastewaterbyFentonReagentXuJin,SunShuiyu,ZhangPing,CaiHeshan(FacultyofEnvironmentalScienceandEngineering,GuangdongUniversityofTechnology,GuangdongGuangzhou510090,China)Abstract:Fentonreagentwasusedinthedegradationofremainderxanthateinflodationwastewater.Theeffectsofoxidationtime,initialpH,Fe2+concentrationandH2O2dosagewerestudied.Theoptimumconditionswerede-terminedviaorthogonaltests.TheresultsindicatethatthemainfactorsaffectingxanthateremovalareinitialpHandH2O2dosage.TheremovalratesofxanthateandCODare99.5%and87.5%respectivelyunderthecondi-tionsofoxidationtime60min,initialpH4,massconcentrationofFe2+20mg/L,thatofH2O220mg/Landthatofxanthate125mg/L.Keywords:Fenton;flotationwastewater;xanthate(编辑　祖国红)127