Results 21 to 30 of about 2,853,826 (347)

Layout and Parameter Analysis of the Cooling System with Mine Water as Cold Source in Linglong Gold Mine

open access: yesGeofluids, 2023
As the heat hazard problem in the deep mine becomes more prominent, it is difficult to alleviate the high-temperature problem by increasing the air supply and adjusting the ventilation mode alone.
Chunlong Wang   +7 more
doaj   +1 more source

Mercury Pollution from Artisanal and Small-Scale Gold Mining in Myanmar and Other Southeast Asian Countries

open access: yesInternational Journal of Environmental Research and Public Health, 2022
Mercury (Hg) is one of the most harmful metals and has been a public health concern according to the World Health Organization (WHO). Artisanal and small-scale gold mining (ASGM) is the world’s fastest-growing source of Hg and can release Hg into the ...
Pyae Sone Soe   +4 more
semanticscholar   +1 more source

Recovery of Copper and Cyanide from Copper-cyanide Solution by Direct Electrolysis [PDF]

open access: yesE3S Web of Conferences, 2021
Using direct electrolysis method, the recovery of copper and cyanide from high concentration copper cyanide solution was researched. The distribution of copper cyanide species was calculated by stability constants and balance equation. The results showed
Gao Teng-Yue, Xu Chao, Qin Guang-Lin
doaj   +1 more source

The large footprint of small-scale artisanal gold mining in Ghana.

open access: yesScience of the Total Environment, 2021
Gold mining has played a significant role in Ghana's economy for centuries. Regulation of this industry has varied over time and while industrial mining is prevalent in the country, the expansion of artisanal mining, or Galamsey has escalated in recent ...
Abigail Barenblitt   +10 more
semanticscholar   +1 more source

Analysis of Crustal Stress and Its Influence on the Stability of the Deep Tunnel in the Huanaote Mining Area

open access: yesAdvances in Civil Engineering, 2022
Crustal stress is a critical parameter utilized to analyze the stability of the tunnel in underground hard-rock mining sites. In order to analyze the distribution law of crustal stress and its influence on the stability of the deep tunnel in the Huanaote
Mingde Zhu   +7 more
doaj   +1 more source

Indonesian Artisanal and Small-Scale Gold Mining—A Narrative Literature Review

open access: yesInternational Journal of Environmental Research and Public Health, 2022
Indonesia is host to a long history of gold mining and is responsible for a significant contribution to world gold production. This is true not only with regard to large gold mining companies but also to small-scale mining groups comprised of people and ...
A. A. Meutia   +2 more
semanticscholar   +1 more source

Tropical surface gold mining: A review of ecological impacts and restoration strategies

open access: yesLand Degradation & Development, 2022
Surface gold mining severely degrades landscapes, causing deforestation, soil erosion and displacement, and toxic contamination. The prevalence of both large‐scale and artisanal, small‐scale surface gold mining in the tropics has risen over recent ...
Shrabya Timsina   +6 more
semanticscholar   +1 more source

Efficiency Improvement and Application of the Groundwater Heat Pump Cooling System in Linglong Gold Mine

open access: yesGeofluids, 2022
Deep thermal damage in mines has had a significant impact on mining efficiency and safety. Local cooling technology can effectively mitigate the problem of heat hazard prior to the formation of the return air system.
Chunlong Wang   +5 more
doaj   +1 more source

The outbreak of illegal gold mining in the Brazilian Amazon boosts deforestation

open access: yesRegional Environmental Change, 2021
Increased prices and political pressure are boosting illegal gold mining in the Brazilian Amazon, threatening forests, indigenous people, and conservation of biodiversity in protected areas. The rate of illegal mining deforestation increased more than 90%
Juliana Siqueira-Gay, L. E. Sánchez
semanticscholar   +1 more source

Probabilistic multi-pathway human health risk assessment due to heavy metal(loid)s in a traditional gold mining area in Ecuador.

open access: yesEcotoxicology and Environmental Safety, 2021
Mining operations are important causes of environmental pollution in developing countries where mining waste management is not adequate. Consequently, heavy metal(loid)s are easily released into the environment, being a potential risk to human health ...
S. Jiménez-Oyola   +7 more
semanticscholar   +1 more source

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