煤矸石井下填充对矿井水的污染及其吸附控制模拟实验  

Simulating experiments on the pollution of mine water after filling-in with gangue and its control

作　　者：郑继东[1] 邵龙义[1] 胡斌[2] 邓寅生[2] 

机构地区：[1]中国矿业大学北京校区,北京100083 [2]河南理工大学,焦作454000

出　　处：《水文地质工程地质》2006年第4期90-93,102,共5页Hydrogeology & Engineering Geology

基　　金：国家自然基金(40372013);煤炭资源教育部重点实验室基金;河南省教育厅自然科学研究项目(2003440226);河南省青年骨干教师计划项目资助

摘　　要：以焦作煤矿区演马矿煤矸石为例,采取连续淋溶方式,模拟井下填充过程中煤矸石对地下水的污染,并利用土壤的吸附性能对矸石中溶出的污染因子进行控制。检测了淋溶水中的pH值、氟、总硬度、锰、铅、镉等6个因子,其中铅、镉未检出。实验表明,pH值、氟、总硬度变化范围均符合地下水Ⅲ类标准。锰是造成地下水污染的主要因子,考虑到累积效应,氟也有可能影响地下水质。控制实验显示,利用当地土壤的吸附性能对矸石中溶出的污染因子进行控制是可行、有效的,且分层填充比混合填充的控制效果好。Based on the continual leaching experiments with gangue collected from the Yanma coal mine in the Jiaozuo coal mine area, this paper describes groundwater pollution after filling-in with gangue and pollution control with local soils due to its good absorption property. In the experiment, six indexes, such as pH, F- , total hardness, Mn, Pb and Cd, were tested. The results indicate that the pH, F^- and total hardness are in accordance with the groundwater quality standards, Pb and Cd are not detected, and the main pollutant is Mn. Considering the accumulation effect, F^- may have an influence on the water quality in the future. The control experiments showed that it is possible and effective to control the leaching of pollutants from gangue with local soils by using its absorption capacity. It is more effective to filling in with the layer structure of gangue and soil instead of a mixture one.

关 键 词：煤矸石 井下填充 淋溶 吸附控制 

分 类 号：TD849.5[矿业工程—煤矿开采] X523[矿业工程—矿山开采]