招远玲珑金矿废石模拟淋滤试验分析

    Analysis of Simulating Eluviations Experimentation for Waste Ore in Linglong Goldfield of Zhaoyuan

    • 摘要: 为了分析降雨淋滤对水质化学组分的影响状况、研究玲珑金矿区废石经降水淋滤对环境带来的影响,进行了金矿废石模拟淋滤试验.通过对比分析淋滤前后水的化学成分发现,淋滤效果与降雨量大小和降雨强度有关,降雨量越大淋滤效果越明显,在同一降雨量条件下,降雨强度越小,则淋滤效果越明显;淋滤后绝大部分组分(离子)浓度呈现不同程度的增大趋势,淋滤液中Pb、Mn2+、NO2-、F-、Ca2+、NO3-、耗氧量淋失较多.结合淋滤试验结果和当地水质环境综合分析,废石经降雨淋滤使水中NO2-、Pb含量升高是造成该区水环境污染的主要因素之一.最后结合玲珑金矿区金矿废石的实际情况,提出了防治措施.

       

      Abstract: In this simulating eluviations experimentation of the waste gold mining ore,the analysis on component changes before and after the simulating eluviations experimentation of the waste ore is carried out.The results are as follows: the eluviations are in relation to the amount and intensity of rainfall.The more the rainfall has,the more eluviations are.But in the condition of equal amount of rainfall,the eluviations are more obvious with the rainfall amount smaller.The concentration of most components(or ions) exhibit increasing trend at different extents after the eluviations.In the eluviating liquid,the Pb、Mn2+、NO2-、F-、Ca2+、NO3- oxygen uptake filter much more.Comprehensive analysis on the eluviating experimentation and local water environment show that rainfall eluviations causing the concentration of NO2-、Pb hoist is one of the main factors that pollute the local water environment.Finally,on the basis of studying the waste gold mining ore in the Linglong goldfield;we propose a practical,scientific and rational method to prevent pollution and recycle the wastes.

       

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