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Mercury in soils impacted by alluvial gold mining in the Peruvian Amazon
Journal of Environmental Management, 2021 Gold mining is the largest source of mercury (Hg) pollution worldwide. The discharge of mercury in the environment bears direct human health risks and is likely to increase cascading effects throughout local food chains. In the Peruvian Amazon the mining
Evert Thomas +2 more
exaly +2 more sources
The Mercury Problem in Artisanal and Small-Scale Gold Mining
Chemistry - A European Journal, 2018 Mercury‐dependent artisanal and small‐scale gold mining (ASGM) is the largest source of mercury pollution on Earth. In this practice, elemental mercury is used to extract gold from ore as an amalgam.
Justin M. Chalker, Louisa J Esdaile
exaly +2 more sources
Experimental study on thiosulfate leaching of gold from a high copper gold concentrate [PDF]
E3S Web of Conferences, 2021 The conventional cyanide leaching process is used to extract gold from a high copper gold concentrate. Because the copper associated minerals consume sodium cyanide in large quantities, the cost of the reagents is high and the economic benefit is not ...
Yanbo Chen +10 more
doaj +1 more source
Study on Technological Process Innovation of Non-Cyanide Leaching [PDF]
E3S Web of Conferences, 2021 Nowadays, there are many gold leaching processes, and the dominant one is cyanidation, but the virulence of cyanidation seriously endangers the environment and human health. In order to reduce environmental pollution and improve the recovery rate of gold,
Chao Xu +10 more
doaj +1 more source
Research on the Increase of Mineral Dissociation Degree by High Pressure Water Jet [PDF]
E3S Web of Conferences, 2021 The traditional grinding technology of ball mill has many problems, such as high energy consumption, unable to maintain the original crystal shape, and it is difficult to obtain high quality and high purity ultrafine powder.
Cai Mingming +8 more
doaj +1 more source
Study on recovery of copper and zinc from cyanide lean solution in a smelting company [PDF]
E3S Web of Conferences, 2021 In the process of cyanidation of gold concentrate from a smelting company, the content of copper and zinc in the liquid gradually increased. In production, acidizing process is used to treat the lean solution from high copper concentrate, and mixed ...
Guanglin Qin +10 more
doaj +1 more source
Experimental Study on Efficient Recovery of High-Grade Sulfide Ore [PDF]
E3S Web of Conferences, 2023 A gold mine is a typical broken zone altered rock type gold deposit, with some high grade primary sulfide ore at 20~30m from the surface, and the ore grade is about 5g/t.
Li Guangsheng +4 more
doaj +1 more source
Study on the Influence of Underground Filling Body on Flotation Index of Beneficiation in Gold Mine [PDF]
E3S Web of Conferences, 2023 The processing capacity of a gold concentrator in Shandong mine is 10000 t/d, and the production process of one-stage grinding + one roughing, two sweeping and one finishing is adopted. The grinding fineness is 50%-55% of -200 mesh content, the flotation
Zhang Xiaoguang +3 more
doaj +1 more source
Environmental Impacts of Gold Mining—With Special Reference to South Africa
Mining, 2023 Gold mining has serious negative environmental impacts, especially due to pollution emanating from tailings storage facilities (TSFs, tailings dams, slimes dams).
M. Laker
semanticscholar +1 more source
Ambio, 2023 Artisanal and small-scale gold mining (ASGM) is present in over 80 countries, employing about 15 million miners and serving as source of livelihood for millions more. The sector is estimated to be the largest emitter of mercury globally.
S. Keane +9 more
semanticscholar +1 more source