The increased fines and the associated mineral enrichment in some key major and minor elements seem to suggest that, the long period of deposition of the decommissioned tailings dams may have resulted in prolonged leaching and weathering to generate clay-sized solid debris that is composed chiefly of chemically resistant …Web

This present study investigated the issue of gold mine tailings dams as a potential source of arsenic and other trace elements contamination and their dissolution into the adjoining environmental media in Obuasi Municipality of Ghana. One active (Sanso tailings dam) and two abandoned (Pompora and Dokyiwa) mine tailings dams in Obuasi gold mine site, …Web

This present study investigated the issue of gold mine tailings dams as a potential source of arsenic and other trace elements contamination and their dissolution into the adjoining …Web

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.Web

After decommissioning, our TSFs are closed and rehabilitated in line with industry good practice. As at end-2019, our 11 operations – including our three JV sites, being the Asanko gold mine (AGM) in Ghana, Gruyere in Australia and Far Southeast (FSE) in the Philippines – contained 34 TSFs, of which 12 were active.Web

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 spectrometry. Average concentrations of As, Cu, Pb and Zn in soils around the active tailings dams wereWeb

Remedial action for heavy metal-contaminated soils is imperative for preventing heavy metal leachability and minimizing environmental risks. This study evaluated the use of limekiln dust (LKD) as a heavy metal stabilization agent for Ghanaian gold mine oxide ore tailing material. Heavy metal-laden tailing material (Fe, Ni, Cu, Cd, …Web

EQA (Aug 2019) . Levels of heavy metals and contamination status of a decommissioned tailings dam in GhanaWeb

Arsenic (As) sorption characteristics in decommissioned tailings dam at Obuasi mine, Ghana was studied. Results followed reducing mass pattern for both sets of observations. ... Trace element contamination of soils around gold mines tailing dams at Obuasi, Ghana African Journal of Environmental Science and Technology Vol. 13 (11) pp ...Web

Levels of heavy metals and contamination status of a decommissioned tailings dam in Ghana. ... In a bid to determine the contamination status of a decommissioned Tailings Storage Facility (TSF 2) from Chirano Gold Mine limited (CGML), scoop of mine tailings were collected down to a depth of 20 cm from nine sampling sites within a 8100 m 2 grid ...Web

Trace elements contamination of soils around gold mine tailings dams at Obuasi, Ghana. Article. Full-text available ... Soils in the vicinity of the decommissioned tailings dam registered ...Web

Earlier reports of gold mine tailings dams in Ghana recorded higher levels of As in soils compared to this study (Mensah et al., 2020; Antwi-Agyei et al., 2009). The levels of As observed in soils ...Web

The Marlu tailings dam is located near Ghana's mining town of Bogoso which was in operation from the pre- colonial era until 1960 when it closed its miningWeb

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 …Web

University of Ghana. P.O. Box LG 58. ... Arsenic sorption characteristics in decommissioned tailings dam environment at the Obuasi Mine, Ghana. Research Journal of Environmental and Earth Sciences, 5(10): 599-610. 24. Agbossoumondé, Y., Ménot, R-P., Nude, P. M. 2013. Geochemistry and Sm-Nd isotopic composition of the Agou Igneous …Web

The active tai- recent implementation of an environmental management 356 Afr. J. Environ. Sci. Technol. Figure 2. Soil profile of Obuasi (Bowell, 1991) (Profile not drawn to scale). Table 1. Levels of As, Cu, Pb and Zn in soils around active and decommissioned gold mine tailings dams at Obuasi, Ghana (mg/kg).Web

on diversity of plants at a gold mine tailings dam in Ghana Emmanuel T. Doku1* and Ebenezer J. D. Belford2 1Department of Pharmaceutical Sciences, Sunyani ... negatively impacted on abundance and diversity of plants at the decommissioned mine tailings dam. Increased concentrations of heavy metals and low nutrient levels in soil …Web

The findings of the present study provide baseline data needed to plan revegetation strategies for mine waste dumpsites and tailings dams in Kitwe and Mufulira (which were decommissioned in the early 1980s and 1950s, respectively) and enable future assessment of potential ecological risks to humans and animals.Web

Gordon Foli. 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 ...Web

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 …Web

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, …Web

Compared to other gold mine tailings dams in Ghana, the levels of Zn and Cd in soil at Marlu tailings are low (Petelka et al., 2019). Despite the toxicity of cadmium of very low concentrations in soil (<2 mg/kg), it is worth mentioning the observed range (2.6 - 3.0 mg/kg) could limit plant growth and therefore reduce plant community abundance ...Web

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 1730Web

Context 1 ... study investigated trace elements content of soils around (i) active and (ii) decommissioned gold mine tailings dams ( Figure 1 ), with soil samples from an undisturbed area...Web

In a bid to determine the contamination status of a decommissioned tailings storage facility (TSF 2) from the Chirano Gold Mine Limited (CGML), scoop of mine tailings samples were collected...Web

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 ...Web

This study investigated the issue of tailings dams as a potential source of trace elements contamination in soils at the Obuasi …Web