重庆大学学报2026，Vol.49Issue(6)：14-23,10.DOI:10.11835/j.issn.1000-582X.2025.282
煤岩体对矿井水常规阳离子演化规律的影响
Impact of coal-rock interactions on the geochemical evolution of major cations in mine water
摘要
Abstract
This study investigates the release patterns of major cations from coal and gangue collected from the Pingdingshan mining area under various conditions,including particle size and solution chemistry,with the aim of elucidating the underlying mechanisms controlling mine water mineralization.Laboratory experiments were conducted to analyze ion release characteristics and pH evolution.The results show that particle size plays a critical role in controlling ion release and solution pH.Finer particles enhance the dissolution of aluminosilicates and carbonate materials in coal-bearing strata,leading to enhanced release of key ions such as Si4+and Al3+.Gangue is identified as the primary source of Si4+and Al3+,whereas coal predominantly contributes Ca2+;moreover,the presence of gangue suppresses the release of Ca2+.Ion release patterns in actual mine water differ from those observed in deionized water,with Ca2+and Mg2+concentrations in mine water mainly governed by coal.Overall,the findings demonstrate that the interactions between coal and gangue significantly impacts the geochemical evolution of mine water,while the initial solution environment primarily regulates the dynamics of ion release and pH changes.关键词
矿井水/煤与矸石/常规离子/水质演化Key words
mine water/coal and gangue/major cations/water quality evolution分类
资源环境引用本文复制引用
路凯旋,罗庆,罗洁,徐连满..煤岩体对矿井水常规阳离子演化规律的影响[J].重庆大学学报,2026,49(6):14-23,10.基金项目
国家重点研发计划资助(2024YFC3013904) （2024YFC3013904）
深地工程智能建造与健康运维全国重点实验室开放基金课题(SDGZ2527) （SDGZ2527）
兴辽英才计划(XLYC2203141).Supported by National Key R&D Program of China(2024YFC3013904),State Key Laboratory of Intelligent Construction and Healthy Operation and Maintenance of Deep Underground Engineering(SDGZ2527),and Liaoning Revitalization Talents Program(XLYC2203141). （XLYC2203141）
