摘要
煤矿地下水库对矿井水的净化作用主要在于库内岩体与矿井水发生的水-岩耦合作用。本文系统梳理了煤矿地下水库水-岩耦合作用的研究方法,指出水样水质测试和岩样理化性质表征项目,并通过静态模拟、动态淋滤、循环净化模拟等试验,探索煤矿地下水库对矿井水的净化规律,利用数值模拟获取反应过程中离子的选择性吸附趋势,结合Piper三线图、Gibbs模型和相关性分析等方法揭示水-岩耦合作用机理。论述了煤矿地下水库对矿井水中悬浮物、特征离子和有机物的净化作用和研究进展,研究表明,煤矿地下水库对矿井水具有一定的净化效果,其中对特征离子的净化主要与溶滤和吸附作用相关;提出了未来煤矿地下水库净化技术的3个研究方向:(1)基于水-岩耦合净化作用的井下矿井水大规模低成本处理技术;(2)耦合多种水处理技术的煤矿地下水库“三位一体”水质控制技术;(3)浓盐废水井下存储及资源化利用技术。
The purification effect of coal mine groundwater reservoir on mine water mainly lies in the water-rock coupling between the rock mass and mine water.This paper systematically reviews the research methods of water-rock coupling in coal mine underground reservoirs, and presents the characterization methods of water quality and physicochemical properties of rock samples.It employs static simulation, dynamic leaching, cycle purification simulation and other tests to explore the purification regulation of mine water in coal mine underground reservoir, uses numerical simulation to obtain the selective adsorption trend of ions in the reaction process, and combines Piper three-line diagram, Gibbs model and correlation analysis to reveal the mechanism of water-rock coupling.The purification effect and research progress of suspended solids, specific ions and organic matter in coal mine underground reservoirs are discussed.The paper shows that underground reservoir of coal mine has a certain purification effect on mine water, and the purification effect of specific ions is mainly related to filtration and adsorption.Three research directions of coal mine underground reservoir purification technology in the future are proposed:(1)developing large-scale and low-cost treatment technologies for underground mine water based on water-rock coupling purification,(2)developing a “three-in-one” water quality control technology for coal mine underground reservoirs coupled with multiple water treatment technologies, and(3)exploring the underground storage and resource utilization technology of concentrated salt wastewater for the future studies of water-rock coupling.
作者
蒋斌斌
李井峰
吴敏
苏琛
包一翔
薛蕊
Jiang Binbin;Li Jingfeng;Wu Min;Su Chen;Bao Yixiang;Xue Rui(State Key Laboratory of Water Resource Protection and Utilization in Coal Mining,China Energy Investment Group,Beijing 102211,China;School of Chemical&Environmental Engineering,China University of Mining and Technology-Beijing,Beijing 100083,China;School of Water Resources and Environment,China University of Geosciences,Beijing 100083,China)
出处
《矿业科学学报》
CSCD
2023年第2期137-145,共9页
Journal of Mining Science and Technology
基金
国家能源集团科技创新项目(SHJT-16-28,GJNY-18-78)
国家能源集团2030重大项目先导项目(GJNY2030XDXM-19-01.3)。
关键词
煤矿地下水库
水-岩耦合作用
净化机理
数值模拟
coal mine underground reservoir
water-rock coupling
purification mechanism
numerical simulation
