矿井闭坑后地下水污染机理及防治综述

煤炭资源需求量的增加,随之而来的是大量开采,老矿区煤炭资源面临枯竭;同时,近些年国家颁布相关政策,促使部分煤矿进行资源整合和关闭,因而废弃矿井逐渐增多,地下水污染问题日益突出。通过归纳闭坑矿井产生的水文地质效应,将地下水污染模式分成2类,阐述闭坑矿井地下水污染形成的模式与机理,并结合国内先进的地下水污染防治技术,针对闭坑矿井提出地下水污染防治措施和监测技术。

With the increasing demand of coal resources,coal resources in old mining areas are facing exhaustion.At the same time,in recent years,the state promulgated relevant policies,which prompted some coal mines to integrate and close their resources.As a result,abandoned mines gradually increased,and groundwater pollution became increasingly prominent.By summarizing the hydrogeological effects produced by closed pit mines,the groundwater pollution modes are divided into two categories,and the formation modes and mechanisms of groundwater pollution in closed pit mines are expounded.Combined with domestic advanced groundwater pollution prevention and control technologies,the groundwater pollution prevention measures and monitoring technologies are put forward for closed pit mines.