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pro vyhledávání: '"Mark Hellmer"'
Publikováno v:
E3S Web of Conferences, Vol 174, p 01056 (2020)
Quarry wastewater is the main pollutant for the surface and underground natural water bodies during mining operations. Negative impact is expressed in contamination of natural reservoirs with fine suspended particles and salt solutions. To reduce the
Autor:
Mark Hellmer, Eugeny Kurehin
Publikováno v:
E3S Web of Conferences, Vol 105, p 01031 (2019)
Opencast mining of coal deposits is a priority in Russia, while providing coal to the domestic and foreign markets. Despite reasonable concerns about air pollution and greenhouse gas emissions, coal use will continue to be significant in the future.
Publikováno v:
E3S Web of Conferences, Vol 41, p 01034 (2018)
Open mining development is the cheapest method, because it uses powerful production equipment, which allows a large amount of minerals to be excavated during a shift. Working conditions in open development are less dangerous for the health of workers