利用天然排水矿坑生物修复煤矿酸性废水的实验研究

The Experimental Study on Biological Treatments of Acid Coal Mine Drainage in the Natural Coal Mine Drainage Pit

采用敞口反应器进行试验,分别模拟在不同深度、微生物接种量、pH值、温度和初始SO42-浓度条件下,利用硫酸盐还原菌处理煤矿酸性废水的环境条件及硫酸根和重金属的去除效果,以探讨利用天然排水矿坑作为反应器,通过投加适量微生物以及所需要的碳源等来修复煤矿酸性废水的可行性。该课题旨在寻求降低煤矿酸性废水处理成本且更易于实际应用的方法和技术,并为项目的后续试验提供依据和参数。

The experiments conducted in the unsealed reactor. The environment condition of treating acid coal mine drainage by sulfate-reducing bacteria and the removal rate of sulfate and heavy metals were researched under different depth, bacteria amount, pH, temperature and initial SO4^2- concentration conditions, respectively. The aim of the experiment was to demonstrate the feasibility of the biological technique for treating acid coal mine drainage by adding appropriate microorganism amount and carbon source in the natural coal mine drainage pit. The subject tried to discover the practical method and technology that can reduce the costs of treating acid mine drainage, and provides the basis and parameters for further study.