【作者】 万由令；

【导师】 李龙海；

【作者基本信息】 江苏大学 ， 环境工程， 2003， 硕士

【摘要】 酸性矿井废水（Acid Mine Drainage，AMD）含有较高浓度的硫酸盐，矿物中硫化物的氧化、硫酸盐的溶出是导致废水酸化的内在因素。酸化过程中，重金属离子溶出进一步加重了废水的污染程度。20世纪70年代以来，该类废水导致的环境问题逐步引起国外环境工作者以及政府的重视，国内相关的研究始于90年代。 现有的研究成果表明仍然需要深入研究废水处理技术，使处理后的出水满足日益严格的环境污染控制要求，其中以硫酸盐还原菌（Sulfate Reducing Bacteria，SRB）为主体的生物处理技术是近年来研究的一个重点。 本课题设计了一套SRB法处理酸性矿井废水处理装置，对适应硫酸盐还原菌生长的各种条件——pH值、温度、COD／SO₄^2-进行了实验研究。在此基础上对农业废弃物玉米芯能否用于SRB法的碳源做了比较深入的探索，分析了这种经济碳源所需要的最适宜操作环境，同时也探讨性地分析了含硫酸盐矿井废水的资源化问题，并对山西某煤矿矿井废水生物治理的可行性进行了初步的实验研究。 研究结论如下：玉米芯可以作为SRB法处理矿井废水的碳源，处理出水硫酸根离子浓度小于250 mg／L，废水中的许多重金属离子能与水中的硫离子反应生成硫化物沉淀，使出水水质达到了生活饮用水水源的基本要求，SRB法处理酸性矿井废水并使其资源化回收再利用是可行的。更多还原

【Abstract】 Acid mine drainage (AMD) at mine sites, formed by the sulfide oxidation and the dissolution of sulfate in minerals, may cause heavy metals to leach further from mine wastes or minerals, and seriously degrade environmental quality. Such problems have attracted more attention of researchers and governments in developed countries since 1970’s, and in China 1990’s.Review of existing research indicates that active-treatment of AMD are developed necessarily to meet stricter demand of environmental pollution control. One of these technologies is sulfate reducing bacteria (SRB) biotreatment, a focused research in recent years.In this paper, a special experiment equipment was designed to cognize the adaptive character of SRB in artificial acid mine wastewater surroundings, such as pH, temperature, the ratio of COD/SO42-. The granulated corncobs, one kind of new cost-effective carbon source, have been investigated to obtain the optimal operation. Based on above work, the real coal acid mine drainage sample in Shanxi Province as reused water resource has been further assessed by experiment.In this study, SO42- can be biodegraded to depress small than 250 mg/l, and by product S2- interacting with other heavy metals in coal acid mine drainage precipitate and can be drawn from the bottom of bio-reactor. The contaminant of effluent is below than table-water’s standard. So the corncob can be used as one kind of economic and feasible carbon sources in the drainage’s treatment and the resource recovering of acid mine drainage with the means of SRB is viable.更多还原