Bioremediation of Acid-Mine Drainage contaminated with acid and heavy metals in coal mine by Sulfate-Reducing Bacteria

被引:0
作者
Ma, B. G. [1 ]
Hu, Z. Q. [2 ]
机构
[1] Hebei Univ Engn, Coll Water Resource & Hydroelect, Handan, Peoples R China
[2] China Univ Min & Technol, Inst Land Reclamat & Ecol Restorat, Beijing, Peoples R China
来源
LEGISLATION, TECHNOLOGY AND PRACTICE OF MINE LAND RECLAMATION | 2015年
关键词
Sulfate-Reducing Bacteria; acidic coal wastes; Acid-Mine Drainage; contamination of acid and heavy metals; bioremediation; REDUCTION; REMOVAL; WATER;
D O I
暂无
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Acid-Mine Drainage (AMD) that releases highly acidic, sulfate, and metals-rich waste is a severe environmental problem, contaminating surface and groundwater as well as soils in coal mining districts in China. In this study, Sulfate-Reducing Bacteria (SRB) was isolated from the loess polluted by Acid Mine Drainage (AMD) from coal wastes. The aim of the test is to study the possibility of using SRB for preventing acid and heavy metals pollution from coal wastes, which is considered to be the major environmental problem associated with coal mining activities. Tests were conducted to determine if the SRB could be used for increasing pH and the immobilization of soluble heavy metals of AMD from coal wastes. We investigated the mechanisms of preventing acid and heavy metals from coal waste by sulfate-reducing bacteria and effect of the dosage of carbon source on controlling acid and heavy metals contamination. The results show that SRB can effectively enhance pH and immobilize iron, cadmium and zinc of acid mine drainage from coal wastes. The 1% dosage of carbon source is suitable.
引用
收藏
页码:423 / 427
页数:5
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