南水北调中线水源地商洛尾矿库安全风险评价

发布时间：2018-05-01 03:25

本文选题：风险分析 + 水源地尾矿库　；参考：《金属矿山》2017年03期

【摘要】：商洛是南水北调中线水源地尾矿库数量最多的地区,以小型库居多,这类尾矿库基础条件薄弱,生产设备老化。在生产过程中,为提高矿物纯度和精度,会加入大量的浮选剂等化学药剂和其他高危害性物质,这些物质会掺杂在尾矿水、矿渣中,通过渗流、扬尘等形式扩散到周围土壤、大气、河流及地下水体中,严重威胁水源区生态安全。通过总结水源区主要矿种及其危害,分别从尾矿库对水环境、土壤环境、大气环境、生态植被这4个方面的影响进行系统分析,确定出尾矿库对上述方面产生破坏的风险。采用作业条件危险性评价方法(LEC法),对水源区尾矿库建立了风险评价标准;根据计分结果的不同,确定风险等级为一至五等不同等别;根据尾矿库所属风险等级,制定了不同应对措施,提高水源地尾矿库安全管理水平,保障水源区生态安全。
[Abstract]:Shangluo is the region with the largest number of tailings reservoirs in the middle route of South-to-North Water transfer Project, mostly small ones. The basic conditions of these tailings reservoirs are weak, and the production equipment is aging. In the process of production, in order to improve the purity and accuracy of minerals, a large number of chemicals, such as flotation agents, and other highly hazardous substances will be added, which will be mixed in tailings water and slag and spread to the surrounding soil through seepage, dust and other forms. In the atmosphere, rivers and underground water bodies, the ecological security of the source area is seriously threatened. By summing up the main mineral species and their hazards in the water source area, this paper systematically analyzes the effects of the tailings reservoir on the water environment, soil environment, atmosphere environment and ecological vegetation, and determines the risk of damage to the above aspects by the tailings reservoir. In this paper, the risk evaluation standard of tailings reservoir in water source area is established by using the risk assessment method of operating condition and LEC method. According to the difference of score, the risk grade is determined to be different from one to five, and according to the risk grade of tailing pool, Different countermeasures were made to improve the safety management level of the water source tailings reservoir and to ensure the ecological safety of the water source area.
【作者单位】：西安理工大学土木建筑工程学院;西北旱区生态水利国家重点实验室培训基地;商洛学院城乡规划与建筑工程学院;陕西省尾矿资源综合利用重点实验室;
【基金】：陕西省重大基础研究项目(编号:2016ZDJC-21) 商洛市科技计划项目(编号:SK2015-33)
【分类号】：TD926.4

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