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首页> 外文会议>Proceedings of the 3rd IASTED international conference on environmental management and engineering; Proceedings of the 1st IASTED international conference on unconventional oils and the environment. >DISPERSION OF HEAVY METALS AT KLEIN LETABA GOLD TAILINGS DAM, LIMPOPO PROVINCE, SOUTH AFRICA
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DISPERSION OF HEAVY METALS AT KLEIN LETABA GOLD TAILINGS DAM, LIMPOPO PROVINCE, SOUTH AFRICA

机译：南非林波波省克莱因莱塔巴金矿尾矿坝中重金属的扩散

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摘要

The study focused on the distribution of Pb, Zn, Cu, As,rnNi, Co, Cd and Mn within the Klein Letaba tailings damrnand the dispersion of these metals in the surrounding area.rnThe work involved sampling and analysis of tailingsrnmaterial, soil, sediments and water by atomic absorptionrnspectrometry. The concentrations of Zn, Cu, As, Ni, Co,rnCd and Mn were found to be high in both tailings materialrnand soil with maximum values of (ppm) 143 and 126 Zn;rn102 and 60 Cu; 2.488 and 1958 As; 757 and 570 Ni; 75rnand 51 Co and 186 and 831 Mn in tailings material andrnsoil respectively. Concentrations of some metals in thernriver sediments were also high. For example, Ni, Mn, As,rnCu, and Zn registered maximum values of (ppm) 111,rn379, 50, 41 and 44 respectively. Such high concentrationsrnof heavy metals can lead to metal poisoning through dustrninhalation and ingestion. The study therefore recommendsrnrehabilitation of the tailings dam so as to stop water andrnwind erosion of the tailings material and dispersion ofrnheavy metals to the environment.
机译：这项研究的重点是克莱恩莱塔巴尾矿坝中铅，锌，铜，砷，rnNi，Co，Cd和Mn的分布以及这些金属在周围地区的分布.rn该工作涉及对尾矿的材料，土壤，沉积物进行采样和分析。和水通过原子吸收光谱法测定。在两种尾矿和土壤中，锌，铜，砷，镍，钴，rnCd和锰的含量均较高，最大值为（ppm）143和126 Zn； rn102和60 Cu。 2.488和1958 As； 757和570 Ni；尾矿物质和土壤中分别为75rn和51 Co和186和831 Mn。河流沉积物中某些金属的浓度也很高。例如，Ni，Mn，As，rnCu和Zn分别记录了（ppm）111，rn379、50、41和44的最大值。如此高浓度的重金属可通过粉尘吸入和食入导致金属中毒。因此，该研究建议对尾矿坝进行修复，以阻止尾矿物质的水和风蚀以及重金属向环境的扩散。

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