肥城矿区地下水资源分析研究

Analysis on groundwater resource in Feicheng mining area

  • 摘要: 为正确认识和解决地下水资源开发利用中存在的问题,通过检测地下水水动力条件和水化学条件的变化,对肥城矿区地下水资源现状进行了科学分析。研究认为:肥城盆地大气降水量的大小将直接影响来年地下水位的高低;四灰和五灰岩溶水中的氟离子含量普遍较高;第四系孔隙水普遍遭受了氮污染,其硝酸盐含量较高,从而使奥陶系含水层中也含有较高的硝酸盐组分;地表水及矿坑水硬度、矿化度都超标,同时存在大量硫酸根;矿井水经沉淀去除悬浮物后,可以达到污水综合排放、景观用水及煤矿井下防尘用水标准。另外,聚类分析和因子分析表明,五灰水与奥灰水普遍存在密切的水力联系。

     

    Abstract: In order to correctly understand existing problems in water resource development and utilization,the groundwater resource,in Feicheng mining area,is analyzed scientifically by examining the transformation of dynamical and chemical condition in groundwater.The research results indicate that the quantity of atmosphere precipitation in Feicheng basin has an immediate effect on the water table in the coming year,the content of fluorin ion in groundwater from the fourth and fifth limestone is generally higher;the Quaternary pore water suffered from the pollution of nitrogen at large and the content of nitrate is relatively high,at the same time the Ordovician aquifers contain higher nitrate component;the rigidity and mineralization degree in surface water and mine hole water are over the standards,and the large sulfur acid radical concurrence in the water.The research also shows after sedimentation and wiping off suspending substance,mine water will achieve sewage integrative letting standard,sight using water quality standard, and coal mine dustproof water using standard;the clustering analysis and gene analysis show the fifth limestone groundwater has consanguineous waterpower relation with the groundwater of Ordovician limestone.

     

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