نتایج جستجو برای: zinc mine
تعداد نتایج: 96898 فیلتر نتایج به سال:
The risks associated with underground mining at Fankou Lead/Zinc Mine in South China are growing due to the large-scale activities there. To recognize mining-induced earthquakes and assess risk per level, a microseismic monitoring system, which is used record events, installed multiple levels Mine. purpose of this study identify evaluate level by analyzing spatiotemporal characteristics In stud...
China holds large-scale lead–zinc mineral resources; however, mining activities often cause severe contamination by heavy metals. This study systemically assessed eight metals (Cu, Zn, Cd, Pb, Cr, Hg, Ni, and As) in mine tailings, soil, groundwater from 27 contaminated sites across China. Regarding 1% of the tailing samples were hazardous waste 20% class II non-hazardous waste. Zn Pb showed hig...
Kushk zinc- lead deposit is located about 167 km east of the city of Yazd, Iran. The geographical location of the mine is 31°, 40' N and 55", 40' E. Different rock types including volcanics and subvolcanics (rhyolites, rhyodacites, dacites, and rhyolitic tuffs) and sedimentary rocks (shale, limestones and dolomites) crop out in the area. Mineralization of the deposit occurs in black shale o...
rehabilitation ofabandoned open excavation forbeneficial use of the pit lake at nyala magnesite mine
abandoned surface mine excavations can be a major environmental, social and/or human healthproblem for the mining industry as well as for the community living nearby. this problem is exacerbated by therapidly growing population encroaching on areas of historic mined lands. the aim of this studywas to assess thesafety status of the historic nyala mine excavation with the purpose of coming up wit...
altogether 20 groundwater samples were collected around the lakan pb and zn mine in iran. samples were analyzed for 8 constituents including fe, pb, hg, mn, zn, cn, so4 and cl using standard method. the results show that the average concentrations of constituents were 0.01, 0.60, 0.10, 0.01, 0.40, 35, 0.01 and 5.95 mg/kg for fe, mn, pb, zn, hg, so4, cn and cl, respectively. the computed contami...
Evaluation of major constraints to revegetation of lead/zinc mine tailings using bioassay techniques
The Lubin underground mine, is one of three mining divisions in the Lubin-Glogow Copper District in Lower Silesia province (Poland). It is the source of polymetallic ore that is rich in copper, silver and several heavy metals. Black shale is also significantly enriched in fossil organic matter in the form of long-chain hydrocarbons, polycyclic aromatic hydrocarbons, organic acids, esters, thiop...
The activities of mining exploitation in Campo de Jales were performed in an uncontrolled way and gave rise to serious environmental contamination: rubbish depositories have been accumulated with no treatment or maintenance. An investigation developed around Jales Mine showed the existence of some chemical impact originated from the waste produced during mining activities. Some "black spots" fo...
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