Results 331 to 340 of about 2,318,568 (392)

The Diavik Waste Rock Project: Persistence of contaminants from blasting agents in waste rock effluent

Applied Geochemistry, 2013
Abstract During mining operations, explosives are used to fragment rock into workable size fractions. Mine-water chemistry can be affected by blasting agent residuals, including NH3, NO 2 - , NO 3 - , Cl−, and ClO 4 - .
Brenda L. Bailey, Lianna J.D. Smith, David W. Blowes, Carol J. Ptacek, Leslie Smith, David C. Sego   +5 more
openaire   +1 more source

The Diavik waste rock project: Initial geochemical response from a low sulfide waste rock pile

Applied Geochemistry, 2013
Abstract Three large-scale experimental waste rock piles (test piles) were constructed and instrumented at the Diavik Diamond Mine in the Northwest Territories, Canada, as part of an integrated field and laboratory study to measure and compare physical and geochemical characteristics of experimental, low sulfide waste rock piles at various scales ...
Lianna J.D. Smith, Brenda L. Bailey, David W. Blowes, John L. Jambor, Leslie Smith, David C. Sego   +5 more
openaire   +1 more source

The Diavik waste rock project: Water flow through mine waste rock in a permafrost terrain

Applied Geochemistry, 2013
Abstract A field experiment is being carried out at the Diavik diamond mine in northern Canada to investigate the influence of unsaturated flow behavior on the quality of drainage from mine waste rock piles in a region of continuous permafrost. This paper is part of a series describing processes affecting the weathering of waste rock and transport of
Matthew Neuner, Leslie Smith, David W. Blowes, David C. Sego, Lianna J.D. Smith, Nathan Fretz, Michael Gupton   +6 more
openaire   +1 more source

Microbial community structure within a weathered waste-rock pile overlain by a monolayer soil cover

, 2020
A historic waste-rock stockpile (WRS) at the Detour Lake Mine (DLM), covered with a thin layer (
Brayden J. McNeill, Eva Pakostova, J. Bain, W. D. Gould, R. Amos, G. Wilson, C. Ptacek, D. Blowes   +7 more
semanticscholar   +1 more source

Chemical precipitation within pyritic waste rock

Hydrometallurgy, 2005
Abstract Pyritic waste rock piles generate acid rock drainage (ARD). If the chemical precipitation of metals could be induced within waste rock piles by the weathering products of phosphate and carbonate minerals, seepage metal loads–and treatment costs–could be reduced.
Margarete Kalin, Bryn Harris
openaire   +1 more source

Diavik waste rock project : thermal transport in a covered waste rock test pile

2011
Covers are widely used in the management of mine tailings and waste rock and most current cover designs and constructions are in temperate regions. However in cold regions, certain features and processes are unique and they can be utilized to reduce the production of acid rock drainage (ARD).
Pham, Nam, Sego, David, Blowes, David, Amos, Richard, Smith, Leslie   +4 more
openaire   +1 more source

A texture fused superpixel algorithm for coal mine waste rock image segmentation

International Journal of Coal Preparation and Utilization, 2019
In coal production, it is necessary to separate waste rock from raw coal. With the development of computer vision technology, the image recognition method with simple equipment and high efficiency has become a research hotspot.
Zhiyuan Sun, Pengcheng Xuan, Zhiqiang Song, Hao Li, Ruiqing Jia   +4 more
semanticscholar   +1 more source

Waste Rock and Tailings Mixtures as a Possible Seal for Potentially Acid Forming Waste Rock

2003
Potentially acid forming (PAF) waste rock contained in dumps formed as a result of open cut mining of metalliferous orebodies are conventionally sealed or covered using a near-saturated, low permeability compacted clay layer, protected with a mulch layer and/or vegetated growth medium.
Williams, D. J., Wilson, G. W., Panidis, C.   +2 more
openaire   +1 more source

Probabilistic Slope Stability Analysis of Coal Mine Waste Rock Dump

Geotechnical and Geological Engineering, 2023
Ashutosh Kumar, Soumen Kumar Das, L. Nainegali, K. Raviteja, K. Reddy   +4 more
semanticscholar   +1 more source

Strategy for Radioactive Waste Disposal in Crystalline Rocks

Science, 1981
A strategy for waste disposal is proposed in which the repository would be situated in a crystalline rock mass beneath a blanket of sedimentary rocks whose ground-water flow characteristics are well understood. Such an approach exemplifies the concept of multiple barriers to the isolation of radioactive wastes from the biosphere.
J D, Bredehoeft, T, Maini
openaire   +2 more sources