搜索
(, 010010):、、,。:; ; :X798:B:1007-0370(2006)04-0032-03OXIDATIONTREATMENTOFCYANOGENS-CONTAINEDWASTEWATERLIJingwei LIQiang CHENYu TANPeiyu(InnerMongoliaAcademyofEnvironmentalSciences,Hohhot010010) Abstract:Thebasicprinciplesofsomecyanogens-containedwastewateroxidationtreatmentmethodsincludedalkalichlorineoxida-tion,thehydrogenperoxidesolutionoxidationandozoneoxidationareintroduced,andcomparisonanalysisaremade.Keywords:Cyanogens-containedwastewater; Oxidationtreatment; Comparison、、、、、。(-CN),、;、、、。,、,,、,。、,,、。:2006-09-17:(1982—),,,,.1 ,、、、,。。1.1 二氧化氯氧化法,。、、、、。HOCl,。,,,、、pH。,;,—32— 18 4 200612:5CN-+ClO2+2OH-※5CNO-+2Cl-+H2O(1),,,,1mgCNClO21.03mg,pH=10,ClO2([ClO2]/[CN-]=1),,90%。,。:10CNO-+6ClO2+4OH-+4H2O※5N2+6Cl-+10HCO-3+2H+(2),ClO2CN-:2CN-+2ClO2=2CO2+N2+2Cl-(3),1mgCN-ClO22.60mg,,CN-,,[ClO2]/[CN-]=3,,,。1.2 双氧水氧化法,HydrogenParox-ide,,H2O2,。、、Cu2+,:Cu2+CN-+H2O2—※CNO-+H2O(4)。(Cu、Zn、Pb、Ni、Cd),,0.5mg/L。。H2O2pH=10～11,。CNO-、NH4+。,。1.3 臭氧氧化法,O3,Ozone。,,,。CN-+O3※CNO-+O2(5),,。1%2%,124,CN-3～4mg/L,。,,30%CNO-:2CNO-+3O3+H2O※N2←+2HCO-3+3O2(6)CNO-pH,pH10,100%CNO-,pH10,CNO-:CNO-+2H2O※HCO-3+NH3(7)pH6～8,:NH3+4O3+3OH-※NO-2+3H2O+4O2(8)7,。,,,。3 3.1 适应性分析。(CN-)100～300mg/L,pH=11.2～12.6,ClO2/CN-=2.28～5.92,98%,。pH,,;,,;pH11,30min96%。,0.5mg/L,Fe(CN)4-6,。Cu、Pb、2n。CN-30mg/L。—33— ,SCN-、SO2-3,。3.2 处理工艺分析,,。PH,。,,CO2NH3。,,SCN-,。,,。,,。,,,。,,。4 4.1 ,、。4.2 ,,。pH。4.3 ,。,,。4.4 ,,。[1],2002,6.[2]..,2002,34(4).[3]..[4]..[5].,2003,1.[6],,.〔M〕.:,2000.[7].〔J〕.,1998,19(5):48-55.[8].〔J〕.:,1999.19(5):16-29.—34— 18 4 200612