Gold Fields Ghana is committed to the safe and stable design, sustainable development, construction, operation and closure of our tailings storage facilities (TSFs). To ensure this, tailings management at Gold Fields …
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— The research, led by the Church of England (CoE) and fund managers, reveals that at least 166 of 1,635 dams holding mining waste — tailings — have had safety issues in the past.
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Download Table | Levels of As, Cu, Pb and Zn in soils around active and decommissioned gold mine tailings dams at Obuasi, Ghana (mg/kg). from publication: Trace elements contamination of soils ...
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— The density and diversity of the AMF found in this study were relatively high and may have contributed significantly to the revegetation of the storage facility. These findings are important pointers for the adoption of mycorrhization in vegetation establishment and ultimately rehabilitation of decommissioned tailings storage facilities …
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— Pre-mining water quality prediction from non-weathered sulphide ores along the Ashanti metallogenic belt in Ghana using Acid-Base accounting procedure. G. Foli O. B. Apea. ... (As) sorption characteristics in decommissioned tailings dam environment at the Obuasi mine, Ghana was studied. The aim was to outline effective remediation strategy …
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Municipality of Ghana. One active (Sanso tailings dam) and two abandoned (Pompora and Dokyiwa) mine ... decommissioning of the old dam, which was used for several decades. Six spots were selected randomly at each study site for sampling using soil auger and chisel hoe. Mini pits were dug at selected points, the soils were
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Potential intrusions of As from the decommissioned tailings dam was approximately three fold that from the active tailings dams. The mean concentrations of Cu in soils around the active and decommissioned …
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This study investigated the issue of tailings dams as a potential source of trace elements contamination in soils at the Obuasi gold mine in Ghana. Soil samples taken from depths of up to 12 cm and within a radius of 400 m from the tailings dams (active and decommissioned), were analysed for As, Cu, Pb and Zn using atomic absorption …
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Arsenic (As) sorption characteristics in decommissioned tailings dam environment at the Obuasi mine, Ghana was studiedThe aim was to outline effective remediation strategy for As, hence the ...
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— Heavy metal pollution from tailings has become a major global concern due to its toxicity, persistence and accumulative potential with its detrimental effects on public health and environmental receptors. In a bid to determine the contamination status of a decommissioned Tailings Storage Facility (TSF 2) from Chirano Gold Mine limited …
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— Soil samples taken from depths of up to 12 cm and within a radius of 400 m from the tailings dams (active and decommissioned), were analysed for As, Cu, Pb and Zn using atomic absorption...
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For these soil tailings dams to be put into productive use, the levels of heavy metals must be assessed. Therefore, this study seeks to investigate the presence of As, Pb, Cr, Cd, …
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2Department of Earth Science, University of Ghana, Legon-Accra, Ghana Abstract: Arsenic (As) sorption characteristics in decommissioned tailings dam environment at the Obuasi mine, Ghana was studied. The aim was to outline effective remediation strategy for As, hence the objectives were to establish: (1) Arsenic degradation capacity of the ...
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— There are tens of thousands of tailings dams all over the world; China alone has 8,000, while Vale still has 30 upstream dams in Brazil, of which 13 have been decommissioned. "We now know what ...
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— p>The study assessed the impact of an operating Tailings Storage Facility (TSF) of Adamus Resources Limited (Nzema Gold Mine) in the Ellembele District of the Western of Ghana on catchment surface ...
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EQA – Environmental quality / Qualité de l'Environnement / Qualità ambientale, 35 (2019) 33-50 DOI: 10.6092/issn.2281-4485/9060 33 LEVELS OF HEAVY METALS AND CONTAMINATION STATUS OF A DECOMMISSIONED TAILINGS DAM IN GHANA Emmanuel Sey (1)*, Ebenezer J.D. Belford (2) (1) Department of Materials Engineering, …
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Download scientific diagram | Comparative levels of trace elements in soils around tailings dams at the Obuasi gold mine in Ghana. from publication: Trace elements contamination of soils around ...
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The disaster near the small town of Brumadinho in southeastern Brazil occurred shortly after midday on 25 January 2019. At a nearby iron ore mine, the tailings dam—a storage area for the sludgy ...
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— On October 16, 2001, a tailings dam burst at the Tarkwa gold mine in the Wassa West District of Ghana sending thousands of cubic meters of mine waste into the Asuman River and contaminating it with cyanide and heavy metals. The Tarkwa mine is operated by Gold Fields Ghana, a South African gold mining company. The disaster left …
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— Tailings dam is the main heavy metal pollution source in mining areas. In this study, the concentration of heavy metals in soil and water from upstream and downstream of the tailings dam...
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Levels of As, Cu, Pb and Zn in soils around active and decommissioned gold mine tailings dams at Obuasi, Ghana (mg/kg). Trace element Tailings dam sites Total count Mean SE mean St.Dev Min. Median Max. Range Active 9 581 130 389 178 493 1473 1295 As Decommissioned 9 1711 172 517 700 1885 2430 1730 Control 9 84.5 13.7 41 36.8 83.3 …
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— Stava, Italy: In 1985, tailings dams built to store waste from flourite mining failed due to poor design and extreme water pressure. Two hundred thousand cubic meters (186,462 cubic miles) of ...
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Phytoremediation is an environmentally friendly, low cost biotechnological process that is fast gaining prominence in the cleaning of contaminated soils in the tropics. The accumulative potential of indigenous or native plants for heavy metals in mine tailings at the Storage Facility of the Chirano Gold Mine Limited, Ghana was investigated. Plant …
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Arsenic Sorption Characteristics in Decommissioned Tailings Dam Environment at the Obuasi Mine, Ghana . × ... Arsenic Sorption Characteristics in Decommissioned Tailings Dam Environment at the Obuasi Mine, Ghana. Johnson Manu. 2013, Research Journal of Environmental and Earth Sciences.
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Arsenic Sorption Characteristics in Decommissioned Tailings Dam Environment at the Obuasi Mine, Ghana
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Soils in the vicinity of the decommissioned tailings dam registered increased values - 1711 ± 172, 71.44 ± 5.27, 38.67 ± 3.59 and 168.1 ± 36.2 mg/kg for As, Cu, Pb and Zn respectively. ... Some probable factors thought to potentially affect trace Statistical analysis element intrusions from gold mines tailings dams in Ghana were also ...
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Tailings Dams can be built as high as 150m and of area size of tens hundreds of hectares; as well as multiple in numbers on a Mine Site. Tailings Dams should have goal of …
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— Closure and Decommissioning 8-1 ... Ghana's Mining and Environmental Guidelines (1994) and the Company's Policy and Standards (see Annex A-3). Several aspects of site decommissioning and reclamation planning have ... Tailings Storage Facility, Water Storage Facility, mill and process plant, Sediment Control Structures, storm water ...
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Levels of As, Cu, Pb and Zn in soils around active and decommissioned gold mine tailings dams at Obuasi, Ghana (mg/kg). Trace element Tailings dam sites Total count Mean SE mean St.Dev Min. Median Max. Range As Active 9 581 130 389 178 493 1473 1295 Decommissioned 9 1711 172 517 700 1885 2430 1730
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Soils in the vicinity of the decommissioned tailings dam registered increased values - 1711 ± 172, 71.44 ... element intrusions from gold mines tailings dams in Ghana were also highlighted ...
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