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About Us
About Us Who We Are African Gold Company is more than just a gold company as it contributes to the economic and social development of the societies in which it operates. We have a commitment to empowering our employees by providing them with a safe working environment. Additionally, we have implemented sustainable mining practices that … About Us Read More »
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The introduction of mercury (Hg) into the environment by anthropogenic activities has resulted in negative implications for ecosystem functions and human health. Unlike the legacy of huge environmental pollution …
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Artisanal and small-scale gold mining is a vital source of income, but it is also very dangerous because miners use toxic mercury to separate …
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Senegal and Guinea Reducing Mercury Use and Release from Artisanal and Small-Scale Gold Mining in Sub-Saharan Africa (2015-2017) As the artisanal and small-scale gold mining (ASGM) sector is a major source of mercury release and environmental pollution in the world, the Minamata Convention requires countries which determine that ASGM activities are more than …
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Journal of Geochemical Exploration, 2013. The impact of historical use of mercury (Hg) for the extraction of gold was assessed in watersheds from an abandoned mine in Randfonetin, a town located at 45 km west of Johannesburg (South …
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In May [2021], the South African Revenue Service arrested a Zimbabwean man trying to smuggle U.S. $780,000 worth of gold into South Africa. As of November, the investigation had not concluded. ... The project then uses those plans to attract financing and install mercury free processing equipment, thus strengthening the market share for mercury ...
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The impact of historical use of mercury (Hg) for the extraction of gold was assessed in watersheds from an abandoned mine in Randfonetin, a town located at 45 km west of Johannesburg (South Africa), which has a long history of gold mining, and its surroundings.The majority of analyzed waters at the site were acidic with pH ranging between 2.9 and 5.0.
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Surveys were conducted to determine Hg concentration in marine samples in Davao del Norte, south of Manila, the Philippines, and near a gold-processing area. At the local market of Apokon, Tagum, seventeen specimens of fish and one seaweed sample were examined to determine the Hg and MeHg concentrations, which ranged between 0.001 and 0.44 μg ...
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First, mercury is mixed with the materials containing gold. A mercury-gold amalgam then is formed because gold will dissolve in the mercury while other impurities will not. The mixture of gold and mercury is then heated to a temperature that will vaporize the mercury, leaving behind the gold. This process does not result in gold that is ...
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Use and Loss of Mercury in Gold Mining . To enhance gold recovery from hydraulic mining, hundreds of pounds of liquid mercury (several 76-lb flasks) were added to riffles and troughs in a typical sluice. The high density of mercury allowed gold and gold-mercury amalgam to sink while sand and gravel passed over the mercury and through the sluice.
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Developed especially for small-scale mining applications for the mercury-free upgrade of gravity gold concentrates to a smeltable grade. ... This Scrubber is paired with the GoldKacha Concentrator to form a complete processing solution for alluvial sands and clays. ... Appropriate Process Technologies, 218 New Market Road, Randburg, GP, 2169 ...
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Historical mercury (Hg) discharged into the environment as a result of gold mining activities plotted as a function of selected geographical locations and time of mining activities.
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