摘要
为了节能减排和保护矿区环境,利用煤层开采后形成的采空区,采用曝气氧化池和压力式气水相互冲洗滤池相结合的工艺,将矿井水在井下直接处理后循环作为防尘洒水和设备冷却用水。利用采空区巨大空间内的矿物颗料填充物,在沉淀、过滤和吸附等作用下去除矿井水中大部分悬浮物,利用曝气、接触氧化过滤进一步去除悬浮物、胶体、铁和锰等物质。运行实践表明,该工艺系统不需要投加化学药剂、适合煤矿井下巷道环境,具有流程简短、处理设施少、处理成本低、自动化程度高、运行稳定等优点。
To save energy, reduce emission and protect environment of mining areas, goaf formed after mining, aeration oxidation tank and pressurized air-water backwashing filter were used to treat and recycle coal mine water underground directly as dustproof water and cooling water for devices. Most suspended solids in coal mine water were removed through sedimentation, filtration and adsorption by minerals filled within the huge space of goaf. In addition, the remaining suspended solids, colloidal sub- stances, iron and manganese were further removed by aeration and contact oxidation filtration. The operating practice showed that the process system did not need any chemicals, could be suited for the under- ground environment of coal mines, and had the advantages of short flow, few treatment facilities, low treatment cost, high automation and stable running.
出处
《中国给水排水》
CAS
CSCD
北大核心
2013年第4期71-74,79,共5页
China Water & Wastewater
基金
科技部技术开发研究专项基金资助项目(2011EG122309
2012EG122131)
关键词
矿井水
井下处理
采空区
压力式过滤
气水冲洗
coal mine water
underground treatment
goaf
pressurized filtration
air and water backwashing
