煤矸石矿井填充过程中微生物作用后发酵液对地下水的影响

The Affection with Groundwater by Zymotic Fluid Caused by the Microbe in the Process of Using Gangue Packed for Mine

煤矸石是排放量最大的工业固废之一,堆积在地面会对环境造成严重影响。对煤矸石矿井填充过程中微生物作用后发酵液对地下水的影响进行研究,对煤矸石井下填充的可行性和安全性具有十分重要的意义。文章以义马跃进矿的长焰煤、煤矸石、矿井水为研究对象,在添加接种物的情况下,以硫酸根、硝酸盐氮、氨氮、硫离子和pH值为研究指标,对发酵液进行测定,结果表明:(1)硫酸盐和产甲烷菌在一定条件下可以共存;(2)整个系统的pH值呈弱碱性;(3)浸泡时间的长短使各指标之间有明显差异,是影响地下水的重要因素。在此基础之上,应继续研究利用煤矸石进行矿井填充的可行性和安全性。

Gangue is one of the largest emissions of the industrial solid waste, and will have a serious impact on the environment when it is accumulated on the ground. Studying the affection with groundwater by zymotic fluid caused by the microbe in the process of using gangue packed for mine, it has an important significance in the feasibility and the security of underground filling with gangue. This text measures zymotic fluid by SO4^2-, NO3^-N, NH3^＋, S^2- and the values of the pH based on the long - flame coal, gangue, mine water of Yima Yuejin mine and in the case of adding materials. The results show that ： （ 1 ） The sulfate and the methanogen can coexist in certain conditions; （2） The pH - value of the entire system is weakly alkaline; （3） The length of soak period can cause the significant differences among the targets, and is an important factor affecting the groundwater. On this basis, we should study the feasibility and safety of using gangue packed for mine.