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Showing 1 to 20 of 197 for “"Tailings"”.
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Shear and consolidation behavior of slurry-deposited, desiccated tailings and compacted filtered tailings
… behavior of slurry-deposited and desiccated tailings versus compacted filtered tailings. In general, the evaluation supports the hypothesis that desiccation and resaturation of a hard rock mine tailings yield higher peak undrained shear strengths relative to compacted filtered tailings when …
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Characterizing tailings professional labor demand
… damage and recent catastrophic failures of tailings (mine waste) facilities. To regain social trust and environmental credibility, the mining industry must do better at managing tailings. The recently issued Global Industry Standard on Tailings Management (GISTM) places significant demand on …
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Geotechnical Investigation of Uranium Tailings
… of existing facilities. The management of tailings, generated as a by-product of ore beneficiation, in containment structures is particularly important to minimize the environmental footprint. A clear understanding of slurry behavior is required at the onset of deposition in the containment …
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Electrokinetic Dewatering of Oil Sands Tailings
Oil sands tailings are the final product of oil sands processing and in the form of slurry with very low solid content. After sedimentation, due to a low hydraulic conductivity of the tailings, both dewatering and consolidating the tailings are difficult. Since electrokinetic (EK) is an effective …
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Physical Modelling of Tailings Dam Breach
Tailings dams are constructed in stages, exhibit sediment deposits located in the reservoir upstream of the dam crest (beaches) generated from slurry deposition, and are commonly designed with shallower upstream slopes in contrast with conventional water storage dams. Current breach models for the …
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HYDRAULIC PERFORMANCE OF GEOSYNTHETIC LINERS IN TAILINGS STORAGE FACILITIES
… compressibility and permeability of the cyclone tailings, and to quantify leakage through a GMB hole overlain by saturated tailings. The effect of hole shapes, hole sizes, GMB thicknesses, tailings thicknesses, tailings homogeneity, applied stresses, water heads, subgrade grain-size distributions …
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Sulfide immobilization with taconite tailings: products, capacity, and stability
… via reactions with Fe-bearing minerals in tailings from the local mining industry. This dissertation presents studies of the reaction between aqueous sulfide and Fe2+-rich minerals found in taconite tailings and the stability of the reaction products. Chapter 1 introduces the importance of …
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Hydrogeochemical and radiometric investigation of the uranium tailings Schneckenstein
… of the environmental contamination risk from the tailings materials. In order to achieve this task, hydrogeological, mineralogical, geochemical, hydrochemical, and isotope studies were conducted at the uranium tailings Schneckenstein. Four cores were taken at the tailing sites by drilling to …
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Desulphurisation of fine coal waste tailings using algal lipids
… developed for desulphurisation of hard rock tailings and coal fines, developed at the University of Cape Town. On desulphurising coal, the first stage produces an upgraded coal product that may be sold, with the second stage used to separate the tailings from the first stage into targeted …
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The spatiotemporal evolution of fine tailings in sand-bed rivers
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2025-12-01
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Geo-tiles: manufacturing tiles from copper mine tailings using geopolymerisation
… of using aluminosilicate-rich mine waste, termed tailings, as the primary raw material to produce tiles using the low-energy geopolymerisation process. Traditional efforts to increase sustainability of ceramic tile manufacturing include waste valorisation to reduce virgin raw material consumption …
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Engineering properties of iron mine slimes for tailings dam stability
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1997.
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A study on chemical stabilization of Oil Sands Mature Fine Tailings
Oil Sands Mature Fine Tailings (MFT) are generated from extraction of bitumen from oil sands. Fine tailings contain significant fraction of clay minerals, which makes dewatering and consolidation difficult and time-consuming. In this thesis, chemical stabilization of MFT is investigated in an …
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Mechanisms of groundwater contamination at a fluvial tailings site, Leadville, Colorado
Includes bibliographical references (pages 151-154).
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An integrated approach to AMD mitigation through sulfide removal from tailings
… of sulfides from potentially acid generating tailings prior to disposal.
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Seismic reponse and post-liquefaction analysis of the 1990 Dashihe Tailings Dam
… study of the seismic safety of the Dashihe Tailings Dam in its 1990 condition using state-of-the-art analytical and empirical procedures. The study involves an analysis of the seismic response and post-liquefaction behavior of the dam using the 1976 Tangshan and Luanxian earthquake records …
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The hydraulic transport of high concentration stabilized flow full plant mineral tailings
… of high concentration stabilized mineral tailings used as backfill material. At high solids concentrations "anomalous" behaviour occurs and is indicated by diameter dependancy on rheogram curves. These curves are not coincident in the laminar flow region. The anomalous behaviour is …
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