Results 1 to 10 of about 2,318,568 (392)

Microbiological influences on fracture surfaces of intact mudstone and the implications for geological disposal of radioactive waste [PDF]

, 2011
The significance of the potential impacts of microbial activity on the transport properties of host rocks for geological repositories is an area of active research. Most recent work has focused on granitic environments. This paper describes pilot studies
Aoki, K., Bateman, K., Coombs, P., Harrington, J., Harrison, H., Holyoake, S., Lacinska, A., Milodowski, A.E., Noy, D., Sasaki, Y., Turner, G., Wagner, D., West, J.M., Yoshikawa, H.   +13 more
core   +2 more sources

Bacterial and Archaeal Diversity in Sulfide-Bearing Waste Rock at Faro Mine Complex, Yukon Territory, Canada

, 2020
Acid mine/rock drainage (AMD/ARD) is generated by the microbially-accelerated oxidative dissolution of sulfide minerals in working and abandoned mine sites, and some natural environments.
Eva Pakostova, Barrie Johnson, Zhongwen Bao, P. MacKenzie, C. Ptacek, D. Blowes   +5 more
semanticscholar   +1 more source

Mitigation of Acid Mine Drainage Using Blended Waste Rock in Near-Equatorial Climates—Geochemical Analysis and Column Leaching Tests

Physchem
Acid mine drainage (AMD), wherein acidic water is generated from pyrite-containing waste rock, can be mitigated by encapsulating pyritic waste rock with cover materials to restrict the inflow of oxygen and water.
Akihiro Hamanaka, Takashi Sasaoka, Hideki Shimada, Shinji Matsumoto, Ginting Jalu Kusuma, Mokhamad Candra Nugraha Deni   +5 more
doaj   +1 more source

Recycling Process of Copper and Cobalt Waste Rock in the Democratic Republic of the Congo

Kuangchan zonghe liyong
The copper grade of the waste rock in the Sicomines copper-cobalt mining area in Congo (DRC) is 1.01%, and the cobalt grade is 0.045%, which has the recycling value. However, the waste rock has problems of high oxidation rate and severe mudding.
Jianyun YAO, Lei SUN, Xinghai CHEN, Hongjie WANG, Feng JIANG, Qingqing WANG   +5 more
doaj   +1 more source

Leachate Experiments to Evaluate Weathering of Waste Rock for Backfill Aquifers in Restored Coal Mine Pits, Powder River Basin, USA

Geosciences, 2023
Restoration of open-pit mines may utilize waste rock for landscape reconstruction, which can include the construction of backfill aquifers. Weathering and contaminant transport may be different in backfill aquifers compared to the surrounding aquifer ...
Julianna Martin, Jeff B. Langman
doaj   +1 more source

Review of man-made mineral formations accumulation and prospects of their developing in mining industrial regions in Ukraine [PDF]

, 2019
Purpose. Analysis of the man-made mineral formations of ore mining and smelting, fuel and energy complexes development accumulation, location and prospects amount in the Dnipropetrovsk region. Methods. Comprehensive approach, including analysis of state
Kuzmenko, O, Lozynskyi, V, Petlovanyi, M, Popovych, V, Sai, K, Saik, P   +5 more
core   +1 more source

Use of hazardous barium slag as a supplementary cementitious material in calcium aluminate cement: Evolution of engineering properties and microstructure

Case Studies in Construction Materials
The disposal of barium slag (BS), a hazardous industrial by-product, presents a significant environmental challenge, particularly because of its potential toxicity and underuse.
Chen-xi Dong, Zhao Duan, Jiang-shan Li, Xin Chen, Wei Zhang, Haitao Cao, Nianqin Wang   +6 more
doaj   +1 more source

Effect of manganese-rich solid waste on soil phosphorus availability applied as monopotassium and rock phosphate in two contrasting soils

South African Journal of Science, 2023
Manganese (Mn) mining produces a large amount of Mn-rich solid waste contributing to soil and groundwater pollution. Adding Mn-rich waste to soils could reduce mining pollution by allowing specialised plants to take up this mineral for growth, that is ...
Mohammed A. Elsheikh, Khatab Abdalla, Louis Titshall, Pardon Muchaonyerwa   +3 more
doaj   +1 more source

Unexpected Non-acid Drainage from Sulfidic Rock Waste [PDF]

Scientific Reports, 2019
AbstractMost rock extraction sites, including mine sites and building construction sites, require a plan to assess, and mitigate if present, the risk of acid mine drainage (AMD). AMD is typically the major environmental concern where sulfide minerals are present in the excavated material and AMD prediction and remediation is based on internationally ...
Gerson, Andrea R., Rolley, Peter J., Davis, Catherine, Feig, Sandrin T., Doyle, Stephen, Smart, Roger St. C.   +5 more
openaire   +3 more sources

Development of natural underground ore mining technologies in energy distributed massifs [PDF]

, 2019
The object of research is the technology and facilities for underground mining of ores in the disrupted massifs. One of the most problematic places is the formation of man-made voids; which influence the occurrence and redistribution of stress-strain ...
Golik, V., Khomenko, O., Lyashenko, V., Topolny, F.   +3 more
core   +4 more sources