含汞污酸生物制剂处理的工业试验研究  

Industrial experiment of acidic wastewater containing Hg treated by biologics in zinc smelter

作　　者：王庆伟[1] 柴立元[1] 王云燕[1] 李青竹[1] 舒余德[1] 

机构地区：[1]中南大学冶金科学与工程学院,湖南长沙410083

出　　处：《中国有色冶金》2009年第4期59-64,共6页China Nonferrous Metallurgy

基　　金：国家科技支撑计划重点项目(No.2007BAC25B01)

摘　　要：进行了生物制剂配合-水解工艺处理锌冶炼烟气洗涤过程中所产含汞污酸的工业试验,考察了均化、生物制剂配合、中和水解等过程中汞及其他重金属离子的脱除,并对各工序产生的渣样进行了分析。结果表明:处理后的污酸含Hg 0.013～0.045 mg/L、Cu 0.010～0.093 mg/L、Pb 0.050～0.95 mg/L、Cd 0.009～0.055 mg/L、Zn 0.017～0.68 mg/L,均低于《污水综合排放标准》(GB8978-1996)的限值;均化渣含Hg28.31%,配合渣含Hg45.08%,可作为炼汞原料;水解渣重金属含量低、稳定性好,便于安全处置。Industrial experiment of treating acidic wastewater by biologics complex-hydrolysis technology was carried out, acidic wastewater produced in washing zinc smelter off gas. Removing Hg and other heavy metals was researched in a equalizing process, biologics complex process and hydrolytic process. Sediment from the industrial experiment was analyzed, the results show that slag contain Hg 0.013~0.045mg/L, Cu 0.010~0.093mg/L, Pb 0.050~0.95mg/L, Cd 0.0090 ~0.055mg/L, Zn 0.017 -0.68rag/L, which were lower than those required in ＂Integrated Wastewater Discharge Standard＂（GB8978-1996）. Mercury content in equalizing sediment reached 28.31% and in complex sediment reached 45.08%, those sediment can be used as raw material for mercury smelter factory. Low concentration and stabilization of heavy metals in hydrolytic sediment makes it easier to dispose and treat.

关 键 词：锌冶炼烟气 洗涤 污酸 生物制剂 汞 均化 配合 水解 

分 类 号：X703.1[环境科学与工程—环境工程]