新型碳源驯化SRB处理酸性矿山废水中重金属和SO42-的应用研究  

Application Research on SRB Domesticated with New Organic Carbon Sources Used in the Treatment of Heavy Metals and Sulphates in Acid Mine Drainage

作　　者：肖利萍[1] 汪兵兵[1] 魏芳[1] 裴格[1] 丁蕊[1] 

机构地区：[1]辽宁工程技术大学建筑工程学院

出　　处：《上海环境科学》2014年第3期93-95,103,共4页Shanghai Environmental Sciences

基　　金：国家自然科学基金项目(编号:51174267);辽宁省“百千万人才工程”项目(编号:2009921106);辽宁省高校科研立项计划项目(编号:2008300)资助

摘　　要：针对硫酸盐还原菌（SRB）处理酸性矿山废水缺乏有效有机碳源问题，运用生活污水、鸡粪和锯末质量比为80：7：3的混合物发酵液作为新型有机碳源驯化硫酸盐还原菌（SRB），并研究以该新型有机碳源作为营养物质的SRB生长规律及处理酸性矿山废水中重金属和SO4^2-的效果。结果表明：新型碳源驯化的SRB生长经历了迟缓期．对数期、稳定期和衰亡期4个阶段；用新型碳源驯化的SRB处理4种共存重金属离子，Fe^2＋，Zn^2＋会被优先去除，两者去除率均〉95％；新型碳源驯化的SRB处理SO4^2-浓度〈3000mg／L酸性矿山废水效果最好，SO4^2-去除率可达到100％。新型有机碳源可作为SRB的优良有机碳源。同时可实现以废治废的目的。Regarding lack of effective organic carbon sources in the treatment of acid mine drainage with sulphate-reducing bacteria （SRB）, a fermentation liquor of mixture of municipal sewage, chicken feces and sawdust in a mass ratio of 80：7：3 was used as new organic carbon sources to domesticate SRB. The growth rules of such SRB and its effectiveness in treating heavy metals and sulphates in acid mine drainage were studied. Results showed that the SRB domesticated with new organic carbon sources grew through four stages, i. e., slow period, logarithmic phase, stable period and decline period. Those SRB were used to treat coexisting four kinds of heavy metal ions, in which Fe^2＋ and Zn^2＋ would take precedence to be removed with both efficiency of greater than 95%. The best effect has shown in the treatment of acid mine drainage with sulphate content below 3 000 mg/L reaching up to 100% of sulphate removal. Such new organic carbon sources could be excellent ones to domesticate SRB whilst practising an approach to using wastes to deal with wastes.

关 键 词：硫酸盐还原菌 生长曲线 重金属 酸性矿山废水 新型碳源 

分 类 号：X703.5[环境科学与工程—环境工程]