炼铅氧气底吹炉烟灰浸出液中脱除砷铜研究
|
摘要
为除去炼铅氧气底吹炉烟灰浸出液中的砷和铜,采用水浸出炼铅氧气底吹炉烟灰、氧化-共沉淀法对浸出液进行除砷、铜,考察了pH值、H2O_2用量、聚合硫酸铁用量、反应时间对金属脱除率的影响。试验结果表明,在100 m L二次浸出液中加入30%的H2O_2溶液3 m L,氧化5 min;再加入10%聚合硫酸铁溶液2.5 m L,反应5 min;加1 mol/L Na OH调整溶液pH=6.0,反应60 min,除杂效果最好,砷、铜脱除率分别达99.99%、99.17%。
The fly ash from lead smelting process with bottom-blown oxygen converter was leached with distilled water,and then subjected to the processes of oxidation and co-precipitation for removing arsenic and copper from the leachate.The influences of pH value,dosages of H2O_2 and polymerized ferric sulfate,as well as reaction time on the metal removal rate were investigated. Results showed that arsenic and copper removal rate reached 99. 99% and 99. 17%,respectively,after being subjected to the following processes: firstly,an oxidative reaction for 5 min by adding 3 m L of H2O_2 in 100 m L of secondary leachate at the amount of 30%,followed by another 5 min reaction after adding 2. 5 m L of polymerized ferric sulfate at the amount of 10%,finally 60 min reaction after the solution conditioned with 1 mol/L Na OH to pH = 6. 0.
The fly ash from lead smelting process with bottom-blown oxygen converter was leached with distilled water,and then subjected to the processes of oxidation and co-precipitation for removing arsenic and copper from the leachate.The influences of pH value,dosages of H2O_2 and polymerized ferric sulfate,as well as reaction time on the metal removal rate were investigated. Results showed that arsenic and copper removal rate reached 99. 99% and 99. 17%,respectively,after being subjected to the following processes: firstly,an oxidative reaction for 5 min by adding 3 m L of H2O_2 in 100 m L of secondary leachate at the amount of 30%,followed by another 5 min reaction after adding 2. 5 m L of polymerized ferric sulfate at the amount of 10%,finally 60 min reaction after the solution conditioned with 1 mol/L Na OH to pH = 6. 0.
引文
[1]王成彦,郜伟,尹飞,等.铅冶炼技术现状及我国第一台铅闪速熔炼炉试产情况[J].有色金属(冶炼部分),2010(1):9-13.
[2]狄聚才,李卫锋.铅铜冶炼烟尘中有价金属的综合回收[J].中国有色冶金,2015,6(3):50-53.
[3]邵戈,曾小冬.水口山炼铅底吹炉烟灰综合回收试验研究[J].中国有色冶金,2010,8(4):43-45.
[4]陈锋.废弃物中回收镉的国内外现状探析[J].有色金属设计,2010,37(3):27-31.
[5]陈建民,酒青霞,王雪峰.传统铅冶炼企业污染物排放量的核定[J].有色金属,2008,60(4):167-173.
[6]彭容秋.重金属冶金工厂原料的综合利用[M].长沙:中南大学出版社,2006.
[7]Dinakar N,Nagajyothi P C,Suresh S,et al.Phytotoxicity of cadmium on protein,proline and antioxidant enzyme activities in growing arachishypogaea L.seedlings[J].Journal of Environmental Sciences,2008,20(2):199-206.
[8]提芸,张旭,佟迪,等.砷污染的危害及除砷方法探讨[J].辽宁化工,2008,37(9):629-630.
[9]Luke Beesley,Onyeka S Inneh,Ga reth J Norton,et al.Assessing the influence of compost and biochar amendments on the mobility and toxicity of metals and arsenic in a naturally contaminated mine soil[J].Environmental Pollution,2014,186:195-202.
[10]彭长宏,程晓苏,曹金艳,等.离子液体负载型碳纳米管吸附除砷研究[J].中南大学学报(自然科学版),2010,41(2):416-421.
[11]杨亮,赵中伟,何利华,等.钼酸铵溶液镁盐溶液法除砷的热力学分析[J].中南大学学报(自然科学版),2012,43(5):1610-1615.
[12]龚竹青,李景升,杨喜云.硫酸铜脱除砷、铁的工艺研究[J].中南工业大学学报,2000,31(3):222-224.
[13]杨亮,赵中伟,陈爱良,等.从钼酸铵溶液中除去砷的研究[J].中南大学学报(自然科学版),2011,42(8):2193-2197.
[14]李运姣,孙昭明,李洪桂,等.Na2WO4溶液结晶过程中除砷、硅等杂质[J].中南工业大学学报,2001,32(3):251-254.
[15]龚竹青,李景升,杨喜云.硫酸铜脱除砷、铁的工艺研究[J].中南工业大学学报,2000,31(3):222-224.
[16]陈胜利,郭学益,梁永宣.粗结晶硫酸铜脱除砷、锑和铋研究[J].中南大学学报(自然科学版),2010,41(4):1251-1255.
[2]狄聚才,李卫锋.铅铜冶炼烟尘中有价金属的综合回收[J].中国有色冶金,2015,6(3):50-53.
[3]邵戈,曾小冬.水口山炼铅底吹炉烟灰综合回收试验研究[J].中国有色冶金,2010,8(4):43-45.
[4]陈锋.废弃物中回收镉的国内外现状探析[J].有色金属设计,2010,37(3):27-31.
[5]陈建民,酒青霞,王雪峰.传统铅冶炼企业污染物排放量的核定[J].有色金属,2008,60(4):167-173.
[6]彭容秋.重金属冶金工厂原料的综合利用[M].长沙:中南大学出版社,2006.
[7]Dinakar N,Nagajyothi P C,Suresh S,et al.Phytotoxicity of cadmium on protein,proline and antioxidant enzyme activities in growing arachishypogaea L.seedlings[J].Journal of Environmental Sciences,2008,20(2):199-206.
[8]提芸,张旭,佟迪,等.砷污染的危害及除砷方法探讨[J].辽宁化工,2008,37(9):629-630.
[9]Luke Beesley,Onyeka S Inneh,Ga reth J Norton,et al.Assessing the influence of compost and biochar amendments on the mobility and toxicity of metals and arsenic in a naturally contaminated mine soil[J].Environmental Pollution,2014,186:195-202.
[10]彭长宏,程晓苏,曹金艳,等.离子液体负载型碳纳米管吸附除砷研究[J].中南大学学报(自然科学版),2010,41(2):416-421.
[11]杨亮,赵中伟,何利华,等.钼酸铵溶液镁盐溶液法除砷的热力学分析[J].中南大学学报(自然科学版),2012,43(5):1610-1615.
[12]龚竹青,李景升,杨喜云.硫酸铜脱除砷、铁的工艺研究[J].中南工业大学学报,2000,31(3):222-224.
[13]杨亮,赵中伟,陈爱良,等.从钼酸铵溶液中除去砷的研究[J].中南大学学报(自然科学版),2011,42(8):2193-2197.
[14]李运姣,孙昭明,李洪桂,等.Na2WO4溶液结晶过程中除砷、硅等杂质[J].中南工业大学学报,2001,32(3):251-254.
[15]龚竹青,李景升,杨喜云.硫酸铜脱除砷、铁的工艺研究[J].中南工业大学学报,2000,31(3):222-224.
[16]陈胜利,郭学益,梁永宣.粗结晶硫酸铜脱除砷、锑和铋研究[J].中南大学学报(自然科学版),2010,41(4):1251-1255.