臭氧氧化法处理尾矿浆中氰化物的研究刘晓红

:2004-12-28:(1969-),,,,;6760,130012刘晓红1,陈民友1,徐克贤1,高广飞2(1.;2.):臭氧技术是一个新兴的领域,目前主要用于饮用水消毒和食物保鲜,黄金行业仅限于实验室对贫液中氰化物的处理。文中主要研究了臭氧氧化法对尾矿浆中氰化物处理的小型试验;从研究结果可知,臭氧氧化法能够使尾矿浆中的氰化物达标排放。:臭氧;处理;氰化物;达标排放:X751.03　　　:B　　　:1001-1277(2005)06-0051-031　　,,,,。,,,,。,。,、、4。,,、;、、、,、。。2　O3O2;,,。1。1　O2O33248101kPa,0℃49.1640101kPa,0℃1.4292.1441.1031.658,F2。2。2　/VF22.87O32.07H2O21.78MnO-41.67ClO21.50Cl21.36O21.23、,,15%。;、,13,25。,,。13,,,。,,,。,。F2、、2.87,2.07,1.78,1.36V,F2。、、、、、。、,。3:;;。20056/26　GOLD51　　　3　,。,,,。(Cu2+),O3。1mg/LCu2+,2/3～3/4。、、,。。。(1):CN-+O3CNO-+O2(2),:2CNO-+3O3+H2O2HCO3-+N2+3O2(3):SCN-+O3+H2OCN-+H2SO4,:O3+2H2O+2eO2+2OH-　E0=1.24VCN-:CNO-+H2O+2eCN-+2OH-　E0=-0.97VpH13.3,90%。,。,pHO3,O3。3～4mg/L,。pH。,pH=10～12,;,0.3g/gCNT-;,,。,,。4　,1L,XFZ-5。3。3　CNT-CuPbZnSCN-ρ/(mg·L-1)195.155.210.826.601。1　pH10,:、、、。4.1　1L,pH=10,195.15mg/L(),0.1m3/h,150mA,200mg/L,4。4　t/min406090CNT-ρ/(mg·L-1)2.291.140.394,90min。4.2　1L,pH=10,0.1m3/h,90min,150mA,5。5　ρ/(mg·L-1)0150200300CNT-ρ/(mg·L-1)55.941.430.330.345,200mg/L。4.3　1L,pH=10,200mg,90min,150mA,6。6　/(m3·h-1)0.20.10.05CNT-ρ/(mg·L-1)0.440.420.366,。,0.05m3/h。4.4　1L,pH=10,200mg,90min,0.05m3/h,7。7,,,52　　　　,,。7　I/mA300250150CNT-ρ/(mg·L-1)0.410.380.374.5　,:pH=9～10,90min,200mg/L,0.05m3/h,150mA,。8。8　CNT-ρ/(mg·L-1)232.09195.15CNT-ρ/(mg·L-1)0.400.294.6　0.5mg/L,。,100～300gCNT-300g,100g1kW,。9。9　/(·m-3)0.2kg/m30.8/kg0.163kW/m30.8/kW2.42.565　　:(1)。。(2),,。,。(3),,,。(4),。,。(5),。ResearchonthetreatmentofcyanideinoretailingpulpwithozoneoxidizationLiuXiaohong1,ChenMinyou1,XuKexian1,GaoGuangfei2(1.ChangchunGoldResearchInstitute;2.LiaoningTianliGoldIndustryCo.,Ltd.)Abstract:Asanewlydevelopedtechnique,ozonetechniqueismainlyusedinthedisinfectionofdrinkingwaterandan-tistalingoffoods.Astogoldindustry,ozoneismerelyusedinthetreatmentofcyanideintheleansolution.Fromtheachieve-mentsofresearchonexperimentsandcommercialtestoftreatmentofcyanideinoretailingpulpwithozoneoxidization,itcanbeconcludedthatthetailingpulptreatedwiththistechniquecanbedischargedwithoutbreachofthenationaldischargingstandard.Keywords:ozone;cyanide;treatment;dischargingwithoutbreachofthenationalstandard(:)　,(WGC):13%,2005。,20042003207.6t234t,,18K。“2005,3。”。。“。10%”。200415t,20037.1t。18%,21.9t。,。234t,9.8t。“,。”,。,“2002,K2%。2003,5%,200412%。”()20056/2653