Behavior, distribution and environmental influence of arsenic in a typical lead smelter  

作　　者：柴立元 史美清 梁彦杰 汤景文 李青竹 

机构地区：[1]School of Metallurgy and Environment, Central South University [2]Chinese National Engineering Research Center for Control and Treatment of Heavy Metal Pollution (Central South University)

出　　处：《Journal of Central South University》2015年第4期1276-1286,共11页中南大学学报（英文版）

基　　金：Project(2011AA061001)supported by the National High Technology Research and Development Program of China;Project(51304251)supported by the National Natural Science Foundation of China;Project(2013M542141)supported by China Postdoctoral Foundation;Project(K1201010-61)supported by Planned Program of Science and Technology of Changsha,China

摘　　要：A field study was conducted to determine the behavior and distribution of arsenic during the pyrometallurgy process in a typical SKS(Shuikoushan) lead smelter in Hunan province, China. Environmental influences of arsenic in selected samples were evaluated. Arsenic contents in all input and output samples vary from 0.11% in raw lead to 6.66% in collected dust-2. More arsenic is volatilized in blast furnace and fuming furnace(73.02% of arsenic input) than bottom blowing furnace(10.29% of arsenic input).There are 78.97%, 13.69%, 7.31% of total arsenic distributed in intermediate materials, stockpiled materials and unorganized emissions, respectively. Matte slag-2, collected dust-1 and secondary zinc oxide are hazardous based on the arsenic concentrations of toxicity characteristic leaching procedure. According to risk assessment code(RAC) guideline, arsenic in collected dust-1 poses a very serious risk to the surrounding environment, arsenic in speiss, matte slag-2, water-quenched slag and secondary zinc oxide show low risk, while arsenic in matte slag-1, collected dust-2 and post dust has no risk to the environment.A field study was conducted to determine the behavior and distribution of arsenic during the pyrometallurgy process in a typical SKS（Shuikoushan） lead smelter in Hunan province, China. Environmental influences of arsenic in selected samples were evaluated. Arsenic contents in all input and output samples vary from 0.11% in raw lead to 6.66% in collected dust-2. More arsenic is volatilized in blast furnace and fuming furnace（73.02% of arsenic input） than bottom blowing furnace（10.29% of arsenic input）.There are 78.97%, 13.69%, 7.31% of total arsenic distributed in intermediate materials, stockpiled materials and unorganized emissions, respectively. Matte slag-2, collected dust-1 and secondary zinc oxide are hazardous based on the arsenic concentrations of toxicity characteristic leaching procedure. According to risk assessment code（RAC） guideline, arsenic in collected dust-1 poses a very serious risk to the surrounding environment, arsenic in speiss, matte slag-2, water-quenched slag and secondary zinc oxide show low risk, while arsenic in matte slag-1, collected dust-2 and post dust has no risk to the environment.

关 键 词：arsenic behavior distribution environmental influence SKS lead smelter 

分 类 号：X758[环境科学与工程—环境工程]