杨柳街矿区地下水水化学特征及矿井涌水来源分析

发布时间：2018-03-13 10:13

本文选题：污染　切入点：水文地球化学　出处：《工业安全与环保》2017年07期 　论文类型：期刊论文

【摘要】：杨柳街矿区随意排放的酸性废水对当地生态环境带来严重破坏,为查明矿区地下水水化学特征及矿井出水的来源,系统采集了20个水样。综合运用Piper三线图、相关性分析、离子比值法和系统聚类对常规水化学组分进行了分析。结果表明:煤系地层含硫矿物的氧化作用是矿井酸性废水形成的主要原因;岩溶区碳酸盐岩的溶解作用是形成低总溶解性固体的HCO_3型地下水的主要水文地球化学过程;煤系砂岩水和岩溶水在石炭系含水层发生了混合作用,对茶园水库构成潜在威胁。矿井渗水的直接补给来源为煤系基岩含水层和上覆泥质灰岩含水层,间接来源为地表河水入渗,潜在来源为西部岩溶含水层沿断层补给。
[Abstract]:The acid wastewater discharged at random in Yangliujie mining area has caused serious damage to the local ecological environment. In order to find out the chemical characteristics of underground water in mining area and the source of mine effluent, 20 water samples were collected systematically. The Piper three-line map was used synthetically, and the correlation analysis was carried out. The chemical components of conventional water were analyzed by ion ratio method and systematic clustering. The results show that the oxidation of sulfur-bearing minerals in coal measure strata is the main reason for the formation of mine acid wastewater. The dissolution of carbonate rock in karst area is the main hydrogeochemical process of forming HCO_3 type groundwater with low total solubility solid, and the mixture of coal measure sandstone water and karst water in Carboniferous aquifer. The direct recharge of mine seepage is from the coal-measure bedrock aquifer and the overlying argillaceous limestone aquifer, the indirect source is the surface water infiltration, and the potential source is the recharge along the fault of the western karst aquifer.
【作者单位】：中国地质科学院岩溶地质研究所岩溶生态系统与石漠化治理重点实验室;联合国教科文组织国际岩溶研究中心;
【基金】：国家自然科学基金青年科学基金(41502257) 国家重点研发计划课题(2016YFC0502402)
【分类号】：P641.3;X751

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