Results 161 to 170 of about 245 (206)

Neutralization of Sulfur-Containing Gases in Mine Atmosphere of Potash Mines

Ecology and Industry of Russia, 2020
The research results of mine atmosphere normalization in potash mines are given.The method of mine air purification from toxic gases through ozonation is proposed. The developed technology of using photochemical method of neutralization hydrogen sulfide and methylmercaptan in mine atmosphere is described.
N.V. Norina, S.A. Chernyi
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Sulfur Biogeochemistry of Circumneutral Mining Wastewaters

2021
Acid mine drainage (AMD) is a major issue for the mining industry and a global environmental concern. It is facilitated heavily by microbially catalyzed sulfur oxidation/ disproportionation reactions involving reduced sulfide components in mine wastes that result in the release of harmful acidity and metals.
openaire   +2 more sources

Orthorhombic sulfur from Cap Garonne, Mine du Pradet

Zeitschrift für Naturforschung B, 2018
Abstract Natural orthorhombic sulfur (α-S8), grown on galena crystals from Cap Garonne, Mine du Pradet, France, were studied by single crystal X-ray diffraction at 150 K: Fddd, a=1036.75(5), b=1273.54(7), c=2437.85(13) pm, wR=0.0380, 1433 F 2 values (all data) and 37 variables.
Jutta Kösters, Valérie Galéa-Clolus, Pierre Clolus, Birgit Heying, Rainer Pöttgen   +4 more
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Acid mine drainage in an Indian high-sulfur coal mining area: Cytotoxicity assay and remediation study

Journal of Hazardous Materials, 2020
Opencast mining causes significant environmental concern due to acid mine drainage (AMD) caused by the oxidation of pyrites and other sulfur-bearing minerals. The present study intends to determine the seasonal variability of AMD in the affected area of the Ledo opencast mining, the cytotoxicity of the AMD, and the AMD remediation process.
Madhulika Dutta, Nazrul Islam, Shahadev Rabha, Bardwi Narzary, Manobjyoti Bordoloi, Durlov Saikia, Luis F.O. Silva, Binoy K. Saikia   +7 more
openaire   +2 more sources

Low temperature removal of inorganic sulfur compounds from mining process waters

Biotechnology and Bioengineering, 2011
AbstractProcess water and effluents from mining operations treating sulfide rich ores often contain considerable concentrations of metastable inorganic sulfur compounds such as thiosulfate and tetrathionate. These species may cause environmental problems if released to downstream recipients due to oxidation to sulfuric acid catalyzed by acidophilic ...
Maria, Liljeqvist, Jan-Eric, Sundkvist, Amang, Saleh, Mark, Dopson   +3 more
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Amelioration and Reforestation of Sulfurous Mine Soils in Lusatia (Eastern Germany)

Water, Air, and Soil Pollution, 1996
In Germany nearly 1.550 km2 have been claimed by brown coal mining until now. Mine soils formed of carboniferous and sulfurous overburden are classified as “sulfurous mine soils”. They remain vegetation-free for decades and may be cultivated only after soil amelioration. The objective of amelioration is a sustained improvement of soil reaction.
J. Katzur, M. Haubold-Rosar
openaire   +1 more source

Microbial oxidation of ferrous iron in acid mine water at sulfur and iron-sulfide mine

Soil Science and Plant Nutrition, 1977
Abstract The microbial oxidation of ferrous iron in the acid mine water from the abandoned Matsuo sulfur and iron-sulfide mine area was investigated. The acid mine water had an extremely low pH value and contained a high concentration of ferrous iron (about 1,000 ppm). The ferrous iron was oxidized rapidly to the ferric form in the acid mine water. The
Norio Wakao, Yonekichi Sakurai, Hideo Shiota   +2 more
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Microbial Activity in High-Sulfur Reclaimed Coal Mine Overburden Sites

Soil and Sediment Contamination: An International Journal, 2012
The high-sulfur containing coalmine overburden (OB) dumping ground of the Tirap colliery under the northeastern coalfields in Assam, India, was reclaimed by phytoremediation techniques. Native plant species were planted with line and field methods and by amending with cow dung and unmined soil.
J. Gogoi, N. Pathak, I. Duarah, H. P. Deka Boruah, N. Saikia, A. K. Handique   +5 more
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Geology of Fort Stockton Sulfur Mine, Pecos County, Texas

AAPG Bulletin, 1972
The Atlantic Richfield Fort Stockton sulfur mine is in north-central Pecos County in the Permian basin of West Texas. Sulfur first was noted at the site in 1900. The first sulfur test was drilled in 1966 and sulfur production started in 1968. Eighty-seven exploratory and production holes have been drilled to date by the operator.
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Geology and Frasch-mining Operations of the Culberson Sulfur Mine, Culberson County, West Texas

1990
Abstract The Pennzoil Sulphur Company's Culberson mine near Orla, Texas, remains the free world's largest producer of native sulfur by the Frasch method. Mining operations commenced on September 30, 1969, under the Duval Corporation, Pennzoil's mining subsidiary at that time.
openaire   +1 more source