含氰废水处理方法进展

,(,210009):,:;;;:X703.1:A:1002-1116(2005)01-0039-051,mgL-1,25500mgL-1,,(10%15%)[1,2],,,,pH,,,,,,,,HCN[3],,,(GB8978-1996):()0.5mgL-1,5.0mgL-1;0.5mgL-1,1.0mgL-1(GB8978-88)(),2,;,,211,CN-HCN,HCN,HCN,HCNHCN,HCNpH(),,HCNHCN33120052JiangsuChemicalIndustryVol.33No.1Feb.2005:2004-11-16:(1976-),,,:025-83587450,E-mail:[e-mail],HCN,()HCNNaOH,NaCN,HCN,,NaOH1%2%CN-[4],:;,;;;,,:,;[5]Agnico-Eagle[6],,,,1.07%,99,36.2t,6m3,[7]2.2,,,,,HCN,(NaOH)NaCN,HCN,:,;,,;,:,,,,,[8][9],[10],,,HCN,NaCN,,CN-,,NaCN213CN-,Fe2+CN-[Fe(CN)6]4-,,CN-10mgL-1,[11],,,pH,[12]214[13]CuZn,NaOH,,,,0420052,,,,CO2CO2[1416]215,,CO2pH,pH,,,,,216216.1,OCl-,,,,,,,,,,1991[17]ClO-,HClO,,HClO,,,,,,,,,,,pH,,,Parga(GSH),pH212pH,pH11.2378.8%[18]pH=59,1.21,60min,20%,0.5mgL-1[19]21612(Cu2+),pH=9.511,H2O2(),,,,,,,CN-,,,14331:H2O2,,;;SCN-21613:;,,;,,,,,MonteagudoO3O3PH2O2O3PUVO3PH2O2PUV,;O3pH12,O3PH2O2O3PUVO3PH2O2PUVpH9.5;O3PH2O2;UVCOD[20]217,CN-,,,[21],KCNCN-;pHCN-,pH12,CN-pH80min180pH=11.0218,,,,,,,,,,CNCl,,,[22]219,,,CN-,,,CN-CNO-,CNO-,,;;,,[23],,46.3%[24]2110,,CO2,,,,,;;T(CN-)200mgL-1,,,3,,,,,,2420052,,,,:[1].[M].:,20031266.[2]MishraRK.Cyanidedestructionandgoldrecovery-are2view[J].PreciousMetals,2002,26:4465.[3].[M].:,19891306307.[4],,.[J].,2002,34(4):1618.[5],,.[J].,2002,22(3):2529.[6]RiverosPA,MolnarR,BasaFJ.Large-scaletreatmentofaconcentratedcyanidewastesolutionbyacidification[J].CIMBulletin,1998,91(1017):9395.[7],,.[J].,2001,22(7):4042.[8],.[J].,2001,22(6):2123.[9].[J].,1995,(6):4041.[10],,,.[J].,1996,35(1):1617.[11].[J].,1991,(1):4749.[12]NevilleRG.Methodfortheremovaloffreeandcomplexcyanidesfromwater[P].US:4312760,1982-02-26.[13],.[J].,1998,11(4):912.[14].CO2[J].,1998,(5):1517.[15]DreisingerD,WassinkB,ShipK,etal.Cyaniderecoverybysolventextraction[C].SouthAfrica:InternationalSolventEx2tractionConference,2002.798803.[16]OtuEO.Supercriticalfluidextractioningoldhydrometal2lurgy[C].Spain:SolventExtractionforthe21stCentury,1999.16631667.[17],,,.[J].,1992,13(8):5156.[18]PargaJR,ShuklaSS,Carrillo-PedrozaFR.Destructionofcyanidewastesolutionsusingchlorinedioxide,ozoneandtitaniasol[J].WasteManagement,2003,23(2):183191.[19],.[J].,2003,4(12):5658.[20]MonteagudoJM,RodriguezL,VillasenorJ.Advancedoxi2dationprocessesfordestructionofcyanidefromthermoelectricpowerstationwastewaters[J].JournalofChemicalTechnolo2gyandBiotechnology,2004,79(2):117125.[21],,,.[J].,2003,23(3):3336.[22],,,.[J].,1994,16(1):7781.[23],.[J].,1997,6(5):7275.[24],.[J].,1997,15(1):38.ProgressintheTreatmentofCyanide-containedWasteWaterCHENHua2jin,LIFang2shi(DepartmentofAppliedChemistry,SchoolofScience,NanjingUniversityofTechnology,Nanjing210009,China)Abstract:Recentprogressinthetreatmentofcyanide-containedwastewaterwasreviewedinthepaper.Thebasicprinciple,application,advantageanddisadvantageofthemethodssuchasacidifyrecoveryprocess,filmmethod,chemi2calsedimentationprocess,exactionmethod,naturaldegradation,chemicalandcatalyticoxidationprocess,hydrolysisandelectrolysismethodsandmicrobiologicaldegradationwereintroduced.Keywords:review;cyanide-containedwastewater;reclaimation;treatment34331: