Assessment of Safety Status of Open Excavations and Water Quality of Pit Lake at Abandoned Nyala Mine in Limpopo Province of South Africa

摘要：

　　The study focused on assessment of safety status of open pit and suitability of water in Nyala Mine Pit Lake for domestic uses. The approach used in the investigation involved field description of the lake, modelling of surface runoff to the pit and chemical analysis of the water. It was found that the pit accumulates runoff water from high grounds along the northem part of the excavation. The water in the pit was found to be alkaline (pH ±9. 6) with F-(±1. 1 ppm), Cl-(±169. 6 ppm), Mg2+ (±67. 85 ppm) and K+ (±87. 16 ppm) concentrations that were all above the standards permissible for domestic use.

关键词： mine pit lake water quality public safety abandoned mines

作者: Sphiwe Emmanuel Mhlongo Francis Amponsah-Dacosta

作者单位: University of Venda, School of Environmental Sciences, Department of Mining and Environmental Geology,Private Bag x 5050, Thohoyandou 0950 South Africa

会议类型: 国际会议

会议名称: The 12th Congress of International Mine Water Association,IMWA2014(第十二届国际矿井水大会)

会议地点: 徐州

会议语种:英文

页码: 395-399

在线出版日期: 2014-08-18（万方平台首次上网日期，不代表论文的发表时间）