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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >ENVIRONMENTAL CONTAMINATION IN THE KEBAN MINING DISTRICT, EASTERN TURKEY
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ENVIRONMENTAL CONTAMINATION IN THE KEBAN MINING DISTRICT, EASTERN TURKEY

机译：东土耳其Keban采矿区的环境污染

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摘要

The present research is focused on the contribution of base-metal mining to heavy-metal contamination of the environment. Mining wastes and unworked oremineral concentrations present in the Keban region (eastern Turkey) are the main sources of environmental contamination in the area via leaching of potentially toxic elements. Total-element concentrations of several different sampling media, such as sediments, waters, and plants, were measured. Analyses of metal and metalloid concentrations of sediment samples indicate high As, F, Mo, and Zn contents, which decrease exponentially with distance from the mine and mineralized zones, mainly due to dilution by water and barren material. The average concentrations of As, Cd, Cr, Pb, and Ta in the water samples are higher than the average natural background values for these heavy metals. The most significant components of the water samples under study are ( >1 mg/l) Ca, Cl, K, Mg, Mn, Na, Zn, and S, and (< 1 mg/l) Ba, Fe, and Mo; these samples are also enriched in some toxic elements, such as As, Cd, Cr, Pb, and Sb. Red algae have a higher capacity for absorption of Cr, Cu, Mn, Ni, Pb, and S, whereas green algae are enriched in Co, Hg, La, Se, and V. However, the highest heavy-metal and toxic-element contents are found in moss collected at the mine adit.
机译：本研究的重点是贱金属开采对环境中重金属污染的贡献。 Keban地区（土耳其东部）存在的采矿废料和未加工的矿物质浓度是通过潜在毒性元素的浸出而造成该地区环境污染的主要来源。测量了几种不同采样介质（例如沉积物，水和植物）的总元素浓度。沉积物样品的金属和准金属浓度分析表明，As，F，Mo和Zn含量较高，这些含量随距矿山和矿化区的距离呈指数下降，这主要是由于水和贫瘠物质的稀释。水样中As，Cd，Cr，Pb和Ta的平均浓度高于这些重金属的平均自然本底值。所研究的水样品中最重要的成分是（> 1 mg / l）Ca，Cl，K，Mg，Mn，Na，Zn和S，以及（<1 mg / l）Ba，Fe和Mo；这些样品还富含一些有毒元素，例如砷，镉，铬，铅和锑。红藻具有较高的吸收Cr，Cu，Mn，Ni，Pb和S的能力，而绿藻则富含Co，Hg，La，Se和V。但是，重金属和毒性元素含量最高矿藏中的青苔中发现了其内含物。

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