Tailings impoundment
Tailings ponds are used to store the waste made from separating minerals from rocks, or the slurry produced from tar sands mining. Tailings are sometimes mixed with other materials such as bentonite to form a thicker slurry that slows the release of impacted water to the environment. See more In mining, tailings or tails are the materials left over after the process of separating the valuable fraction from the uneconomic fraction (gangue) of an ore. Tailings are different from overburden, which is the waste rock or other … See more Sulfide minerals The effluent from the tailings from the mining of sulfidic minerals has been described as "the largest environmental liability of the mining industry". These tailings contain large amounts of pyrite (FeS2) and See more The fraction of tailings to ore can range from 90 to 98% for some copper ores to 20–50% of the other (less valuable) minerals. The … See more Historically, tailings were disposed of in the most convenient manner, such as in downstream running water or down drains. Because of concerns about these sediments in the … See more Tailings are also called mine dumps, culm dumps, slimes, refuse, leach residue, slickens, or terra-cone (terrikon). See more Early mining operations often did not take adequate steps to make tailings areas environmentally safe after closure. Modern mines, particularly those in jurisdictions with well-developed mining regulations and those operated by responsible mining companies, … See more Tailings deposits tend to be located in rural areas or near marginalized communities, such as indigenous communities. The Global Industry Standard on Tailings … See more Webtailings facility have a clear response procedure in the unlikely event of a dam breach, or similar major dam related incident. ... 2.1.2.3 Excessive or dirty seepage through the impoundment 2.1.2.4 If an uncontrolled discharge is occurring or is imminent 2.1.2.5 Major dam subsidence or cracking 2.1.2.6 Active erosion of the dam structure by ...
Tailings impoundment
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WebWhere tailings slurry is deposited in the facility, the water separates from the heavier sand and silt particles and collects to form a decant/reclaim pond on the surface of the impoundment. The tailings pond water is then recycled back into the milling process for reuse. The tailings are contained within the facility WebTailings in the impoundment are primarily composed of silica sand, with a slightly higher concentration of copper than the general soil in the western United States (Kennecott Utah Copper, 2008). Kennecott tailings impoundment, together with a mining refinery and a smelter, are in close proximity to the Great Salt Lake (Fig. 1B).
Web15 Jun 2015 · reduces the overall volume of tailings to be deposited in the impoundment. Syncrude Tailings Dams. Syncrude Tailings Dam often concerns to the Mildred Lake Settling Basin (MLSB). This is an embankment dam that is, by volume of construction material, the largest hydrotechnic structure in the world to 2001. The dam and the tailings artificial ... WebThe study of the Raibl Pb-Zn tailings impoundment was done using bulk chemical analysis on borehole samples, Electrical Resistivity Tomography surveys, and Ground Penetrating …
WebIn order to maintain the normal mining operations, several methods are proposed for tailing disposal, including disposal of dry or thickened tailings in impoundments or free-standing piles, backfilling underground mine workings, subaqueous disposal, and the most common method, the disposal of tailings slurry in impoundments that involves the … WebUranium mills typically produce slurried tailings which are hydraulically deposited in a tailings impoundment. The slurried tailings contain about 25* solids (75* liquids) by volume and have a low pll. For lined impound-ments, St.aub (1978) estimates that after decanting over half of the input water is stored in the tailings. As
http://mssi.nrs.gov.bc.ca/FordingRiver/FordingRiver_2014_EPRP_tailingsplan.pdf
Web11 Apr 2024 · The structures inventoried, including the tailings impoundments (Fig. 4 a) and the spoil heaps (Fig. 4 b) from metallic mining, coal and industrial minerals are the most suitable to investigate for CRMs recovery potential, due to their high probability of still containing part of the originally exploited minerals. discount beauty stores in spring lake ncWeb19 Aug 2015 · The definition of freeboard in tailings impoundments must consider the specific characteristics of these works that store both solids and water at the same time. These two elements have... four new and emerging classes of softwareWebMany tailings impoundments provide long-term storage for saturated, semi-fluid fine grained materials. Closure of these tailings impoundments represents an ongoing priority and a potential challenge for owners and professionals due to the potentially fluid nature of the impounded tailings in the event of a hypothetical dam breach. discount bed and mattress stores