| 以秸秆为微生物碳源的尾矿原位修复:动态实验的初步分析 |
| |
| 引用本文： | 张楠,陈天虎,周跃飞,王进,金杰,黎少杰.以秸秆为微生物碳源的尾矿原位修复:动态实验的初步分析[J].矿物岩石地球化学通报,2011,30(3):334-340. |
| |
| 作者姓名： | 张楠 陈天虎 周跃飞 王进 金杰 黎少杰 |
| |
| 作者单位： | 1. 合肥工业大学资源与环境工程学院,合肥,230009
2. 合肥工业大学资源与环境工程学院,合肥230009;合肥学院生物与环境工程系,合肥230009 |
| |
| 基金项目： | 国家重点基础研究发展规划项目(2007CB815603); 国家自然科学基金资助项目(40872047,40902019) |
| |
| 摘 要： | 对铜陵相思谷尾矿砂中的重金属在生物和非生物条件下的淋滤行为进行了研究。设置两个动态反应柱进行实验(实验柱填充尾矿砂+污泥+秸秆,对照柱仅填充尾矿砂,进水SO42-1000 mg/L,pH 7.5)。结果表明,实验初期(0~20 d)实验柱出水重金属浓度明显高于对照柱,归因于柱内微生物加速了矿物分解和重金属的淋滤;此后实验柱出水SO42-浓度逐渐降低,同时Cu2+、Cd2+、Zn2+、总Fe浓度分别降至0.1 mg/L、0.1 mg/L0、.4 mg/L和1 mg/L以下。据此推测,实验柱中出现了微生物作用下的硫酸盐还原作用,生成了可以吸持重金属的硫化物沉淀。研究结果表明,以稻草为碳源、污泥为微生物接种源构建尾矿砂-微生物体系,能够有效还原硫酸盐并去除重金属,该方法可以用于矿山尾矿的原位修复。
|
| 关 键 词： | 尾矿 硫酸盐还原菌 重金属 动态实验 淋滤 |
In-situ Bioremediation of Tailings with Straw as Carbon Source: Preliminary Analysis by Dynamic Testing |
| |
| ZHANG Nan,CHEN Tian-hu,ZHOU Yue-fei,WANG Jin,JIN Jie,LI Shao-jie.In-situ Bioremediation of Tailings with Straw as Carbon Source: Preliminary Analysis by Dynamic Testing[J].Bulletin of Mineralogy Petrology and Geochemistry,2011,30(3):334-340. |
| |
| Authors: | ZHANG Nan CHEN Tian-hu ZHOU Yue-fei WANG Jin JIN Jie LI Shao-jie |
| |
| Institution: | ZHANG Nan1,CHEN Tian-hu1,ZHOU Yue-fei1,WANG Jin1,JIN Jie1,2,LI Shao-jie11.School of Resources and Environmental Engineering,Hefei University of Technology,Hefei 230009,China,2.Department of Biological and Environmental Engineering,Hefei University |
| |
| Abstract: | In this study,the behaviors of heavy metals in skarn tailings of Xiangsi Valley Mine(Tongling,China)were studied by dynamic leaching experiments under both biotic and abiotic conditions.Two column reactors were designed,one was packed with mine tailings,sludge and straw(experimental column),and another was packed with mine tailings only(control column).The influent conditions were set as SO2-4 1000 mg/L and pH 7.5.The results showed that the concentrations of heavy metals in the effluent of the experimental... |
| |
| Keywords: | tailings sulphate reducing bacteria heavy metal dynamic test leaching |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
