نتایج جستجو برای: abandoned mines
تعداد نتایج: 16266 فیلتر نتایج به سال:
Oxidation of sulfide-containing ores is the main cause of Acid Mine Drainage (AMD), which is an environmental problem associated with both the abandoned and active mines. Iron-bearing sulfide minerals can be oxidized and form mine waters with high sulfate content, low pH, high electrical conductivity, high redox potential, and high concentrations of iron, aluminum, and other heavy metals. In th...
Historic mine sites are a major source of contamination to terrestrial and river environments. To demonstrate the importance of determining the significance of point and diffuse metal contamination and the related bioavailability of the metals present from abandoned mines a case study has been carried out. The study provides a quantitative assessment of a historic mine site, Wheal Betsy, southw...
As mineral resources are depleted, most mines are typically abandoned and left unattended, resulting in serious social problems that impede sustainable development of these areas. The mining industry has recently introduced the use of renewable energy systems to solve the problems. This study assessed the photovoltaic (PV) potential of an abandoned mine tailings dam at the Sangdong mine in Sout...
Purpose. To develop an approach for ranking abandoned mines in terms of the efficiency mine water heat recovery by geothermal systems through applying set basic criteria; they allow considering geological and mining conditions first approximation preliminary assessing performance located on them. Methodology. The proposed includes five indicators usually available or easily calculated such as c...
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