Spatial modelling of contamination in a catchment area impacted by mining: a case study of the Recsk copper mine, Hungary

Land Contamination & Reclamation Pub Date : 2009-11-01 DOI:10.2462/09670513.987

G. Jordan, A. Rompaey, A. Somody, U. Fügedi, A. Farsang

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引用次数: 8

Abstract

The metals and metal compounds that have been exposed by mining or have been discarded in mine wastes tend to become chemically more available, generating acid mine drainage as well as releasing toxic metals into soils, surface waters and groundwater in the affected catchment area. Here we present a case study of the spatial assessment of contamination in a catchment area impacted by mining. A detailed statistical analysis was performed in order to identify geochemically homogeneous areas, including those contaminated by mining. A distributed model is also presented. This assesses the mean annual export of heavy metals from a catchment area, taking into account the spatial pattern of metal concentration and the topological relationships between sediment sources and sinks. Results show that the spatial pattern of background geology, mineralization and mines is important for understanding and assessing the geochemistry of contamination in the affected catchment. Moreover, certain spatial configurations of land use can minimize the total amount of sediment exported and the volume of polluted waste and sediments that is exported.

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受采矿影响的集水区污染的空间模拟:匈牙利resk铜矿的案例研究

采矿所暴露的金属和金属化合物或在矿山废物中丢弃的金属和金属化合物往往在化学上变得更容易获得，从而产生酸性矿山排水，并将有毒金属释放到受影响集水区的土壤、地表水和地下水中。在这里，我们提出了一个受采矿影响的集水区污染空间评估的案例研究。进行了详细的统计分析，以确定地球化学均匀的地区，包括受采矿污染的地区。提出了一种分布式模型。考虑到金属浓度的空间格局以及沉积物源和汇之间的拓扑关系，该研究评估了集水区重金属的年平均出口量。结果表明，背景地质、矿化和矿山的空间格局对认识和评价受影响流域的污染地球化学具有重要意义。此外，一定的土地利用空间配置可以使出口的泥沙总量和污染的废物和沉积物的体积最小化。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Land Contamination & Reclamation

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