Analyzing the effect of Akoben programme on the environmental performance of mining in Ghana: A case study of a gold mining company

Bawua, Serwaa Akoto; Owusu, Richmond

doi:10.1016/j.jsm.2018.02.002

Cited by 10 publications

(6 citation statements)

References 8 publications

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“…The X-ray diffraction performed on the heavy and mixed fractions from Brad Ribita and Brad Criscior allowed the mineralogical composition to be determined. In detail, the mineralogical species contained in the heavy fraction Brad Ribita are the following: quartz-(SiO 2 ) (48.3%); pyrite (FeS 2 ) (20.4%); muscovite-(K, Ba, Na) 0.75 (Al, Mg, Cr, V) 2 (Si, Al, V) 4 16 (4.9%); Calcite-CaCO 3 (2.1%) and Chalcopyrite-CuFeS 2 (0.1%).…”

Section: Physical Processmentioning

confidence: 99%

“…Regarding heavy Brad Criscior, the mineralogical composition is constituted by: quartz-(SiO 2 ) (66.2%); pyrite (FeS 2 ) (10.2%); muscovite-(K, Ba, Na) 0.75 (Al, Mg, Cr, V) 2 (Si, Al, V) 4 16 (2.9%); Calcite-CaCO 3 (1.1%) and Chalcopyrite-CuFeS 2 (0.3%).…”

Section: Physical Processmentioning

confidence: 99%

“…Several studies have shown that mining activities can significantly damage, pollute and alter the environment (e.g., soil, sediments, water and air quality) as well as human health [1][2][3][4]. Furthermore, mining involves the creation of surface features that are unstable, prone to landslides and collapses, but, especially, expose the environment to exogenous vast areas of mineralized rocks and byproducts of mineral treatment.…”

Section: Introductionmentioning

confidence: 99%

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Valorization of Mining Waste by Application of Innovative Thiosulphate Leaching for Gold Recovery

Ubaldini

Guglietta

Vegliò

et al. 2019

Metals

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The metals and industrial minerals contained in the tailings of mining and quarrying activities, can degrade natural environments as well as human health. The objective of this experimental work is the application of innovative and sustainable technologies for the treatment and exploitation of mining tailings from Romania. Within this approach, the recovery of high grade raw materials to be placed on the market is achieved and reduction of these wastes volume are achieved. The current study is focused on hydrometallurgical process for the recovery of gold. The innovative treatment chosen is the thiosulphate process that, compared with the conventional cyanide, has several advantages (e.g., it is more ecologically friendly and is not toxic to humans). The conventional cyanidation process shows operating limits in the case of auriferous refractory minerals, such as Romanian wastes, the object of the study. An important characteristic of thiosulphate leaching process it has the best selectivity towards gold; it does not attack the majority of the gangue mineral constituents. Gold extraction of 75% was obtained under ambient conditions of temperature. Moreover, the overall process achieved about 65–67% Au recovery, this being in line with the conventional cyanidation process. As these results are obtained by application of the thiosulfate process on a low gold content ore, they may be considered encouraging. The optimization of process parameters and operating conditions, should permit the best results in terms of process yields to be achieved.

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Section: Physical Processmentioning

confidence: 99%

Section: Physical Processmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Valorization of Mining Waste by Application of Innovative Thiosulphate Leaching for Gold Recovery

Ubaldini

Guglietta

Vegliò

et al. 2019

Metals

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“…A lot of water and chemicals are used to process gold bearing ore. Because of this, water has been called "mining's most common casualty" (Safe Drinking Water Foundation [SWDF] n.d). The use and discharge of water and chemicals such as cyanide and mercury, as well as seepages from the tailings and mining waste, poison freshwater sources (Aboka et al 2018;Bawua and Owusu 2018;Bell et al 2006;Hadzi et al 2015;SWDF n.d;). In their chase for more profits in Ghana, foreign mining companies take advantage of the institutional deficiencies and loopholes in environmental regulations -as well as the inefficient enforcement of these laws -to discharge this toxic brew into rivers and streams (Armah et al 2011: 196-198;Aboka et al 2018: 45).…”

Section: Ravages Of Lsm On the Ecology In Ghana: Pollution Of Streamsmentioning

confidence: 99%

Large-scale mining and ecological imperialism in Africa: the politics of mining and conservation of the ecology in Ghana

Ayelazuno

Mawuko-Yevugah

2019

Journal of Political Ecology

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The article draws on the insights of political ecology to illuminate the politics shaping the enforcement of environmental regulation in the mining sector of Ghana. We argue that the Ghanaian state uses strong-arm measures against artisanal and small-scale mining (ASM) operators, particularly, the subaltern classes engaged in the industry for survival. Periodically, the state deploys the military and the police to clamp down on ASM for destroying the environment, but treats with kid gloves foreign companies engaged in large-scale mining (LSM), wreaking similar disastrous ecological effects on mining communities. The state believes that LSM by foreign companies is a source of foreign direct investment (FDI) and foreign mining companies should be incentivized to come and stay in the country. Presented in broad-brush strokes as illegal (galamsey), the Ghanaian state sees ASM as an environmental menace to be fought with all the coercive apparatuses that it can command. Disputing this claim, the article argues that mining-FDI is essentially ecological imperialism, wreaking havoc on the ecosystem of mining communities whose livelihood strategies are in conflict with the accumulation and political interests of foreign mining companies and the Ghanaian political class respectively. The article demonstrates that concerns over the harmful impacts of mining on the ecology of Ghana are neither class-neutral nor free of politics. They are rather highly imbricated in power structures and relations, in which the interest of the ruling class is supreme in the enforcement of environmental regulations in Ghana. The paradox of the biases of the Ghanaian state against ASM, particularly ASM operated by its own citizens for survival, and in favor of foreign mining companies engaged in LSM for profits, is explained with the insights of ecological imperialism.Keywords: Large-scale mining, artisanal and small-scale mining, Operation Vanguard, Ghanaian state biases, ecological imperialism

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“…Mining activities could be bene cial to the economic growth of countries if managed properly. However, there is always a trade-off between economic growth and environmental sustainability, because of the excessive exploitation of natural resources (Awan, 2013;Bawua & Owusu, 2018).…”

Section: Introductionmentioning

confidence: 99%

The Impact of Bouxite Mining On The Semanduk Lake Environment: A Case Study In Tayan Hilir, Sanggau District, West Kalimantan Province, Indonesia Country

Purwanto¹,

Andrasmoro²,

Eviliyanto³

2021

Preprint

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Background: Several mining activities, especially bauxite, have been carried out in several areas in West Kalimantan. The areas most widely carried out bauxite mining are Sanggau and Ketapang districts. Bauxite mining is included in the classification of surface mining or often referred to as open mining. This is characterized by the demolition of the upper layers of soil and taking the results of weathering rocks, namely granite rocks. The demolition of topsoil is done with the clearing of vegetation above. In this condition, the land still has the same morphology when clearing has not been done and the soil has not been much disturbed. But after mining there is a lot of clay, sandstone, topsoil materials, of course, this will have a negative impact on the environment.Result: The results showed that the gradient of the slope has an important role in land conservation. The greater gradient of the slope will automatically increase the surface runoff, so the greater the energy of run-off. The soil depth is shallow on average and has poor deep soil drainage. Soil is easily eroded, so a lot of rocks and gravel are exposed on the surface, plants cannot develop properly. Floods often occur, in areas of alluvial plains with a range of more than 24 hours. The water availability capacity is also very low. Rainwater in the area mostly becomes runoff. The nutrient content in the ex-mining area is also low. Therefore it is necessary to improve efforts by means of reforestation of the former land so that in the future it can be used for certain uses, especially for agriculture, plantations, and forests.Conclusion: Slopes have an important role in land conservation. Slope affects runoff, effective soil depth, erosion rate, plant growth, waterlogging. Nutrient content in ex- Bauxite mining areas is also low.

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Analyzing the effect of Akoben programme on the environmental performance of mining in Ghana: A case study of a gold mining company

Cited by 10 publications

References 8 publications

Valorization of Mining Waste by Application of Innovative Thiosulphate Leaching for Gold Recovery

Valorization of Mining Waste by Application of Innovative Thiosulphate Leaching for Gold Recovery

Large-scale mining and ecological imperialism in Africa: the politics of mining and conservation of the ecology in Ghana

The Impact of Bouxite Mining On The Semanduk Lake Environment: A Case Study In Tayan Hilir, Sanggau District, West Kalimantan Province, Indonesia Country

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