Uranium Tailings Mine Backfill

  • Underground Mine Backfilling in Australia Using

    13.05.2015· Underground mine backfilling is a form of ground improvement that has to be carried out in the mine sites. The backfilling provides ground support and regional stability, thus facilitating ore removal from nearby regions. The large underground voids created by the ore removal are backfilled with the waste tailings in the form of paste fills, hydraulic fills, and others.

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  • Thacker Pass Lithium Mine - Draft

    28.08.2020· Bartell has reservations that some of that backfill will contain radioactive elements like Uranium. Chevron looked for Uranium on the proposed mining site in the 1970s. "If you put sulfuric acid on ore, it will leach multiple things out, including the Uranium that Chevron's mining claims were originally seeking," Bartell said. "According to the EIS, when they did sampling,

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  • Characterisation of tailings for paste backfill

    The criticality of determining the physical, chemical, and mechanical characteristics of tailings, which will affect the paste backfill quality and performance, has been illustrated in a case study of paste characterisation test work conducted by the author at a Canadian base metal mine. A number of outstanding issues, primarily technical, related to the reliability of paste backfill systems

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  • Backfill distribution system design -

    This fine material has been, and still is, the preferred source of backfill material although milling technology has resulted in a finer tailings product and backfilling has moved from cyclone classified tailings to full plant tailings and higher solids concentrations as mining activity has resulted in larger cavities underground. These larger cavities, together with the use of non

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  • Preparation and Mechanical Properties of

    Alkali-activated slag, especially sodium silicate activated geopolymer, has become the preferred cementing material for the uranium tailing backfilling system because of its advantages of corrosion resistance and high strength.

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  • mill crusher tailings recycling - hausbau

    Uranium Mills and Disposal Facilities - Utah Department of Tailings is a critical consideration for the design of slurry transportation systems. Mine operators are continually looking for solutions for the safe transport, storage and disposal of tailings, as well as converting tailings into construction materials and mine backfill. Contact Us. portable gold tailing crushing mill. 2) When

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  • -Nuclear fuel cycle Management of wastes from uranium

    from uranium mines and mills by K.T. Thomas* Uranium mining and milling operations have not given rise to much concern about their hazards, and with advancing technologies for mill processing and waste management, the situation will continue to improve. However, the disposal of large quantities of waste produced in mining and milling does have an environmental

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  • Presentations tagged with Backfill - BC ML/ARD

    KEYWORDS: backfill drainage chemistry hydrology McClean Lake prediction segregation underwater uranium waste rock . Mehling P.. Paste Backfill: Influence on Mine Water Quality. Presented at the 2003 workshop. KEYWORDS: backfill cement paste prediction survey tailings . Martin T.E..

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  • Uranium mines and mills waste - Canadian

    There are 12 inactive uranium mine sites and 10 uranium tailings management area in and around Elliot Lake, Ontario. All of the Elliot Lake uranium mines were brought into production between 1955 and 1958. By 1970, five of the mines had been shut down. Two companies – Rio Algom Ltd. and Denison Mines Inc. – operated and decommissioned the

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  • Radon emanation from backfilled mill tailings in

    Coarser mill tailings used as backfill to stabilize the stoped out areas in underground uranium mines is a potential source of radon contamination. This paper presents the quantitative assessment of radon emanation from the backfilled tailings in Jaduguda mine, India using a

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  • Tailings Backfill - Metallurgist & Mineral

    Table of ContentsMix CompositionMix HandlingLaboratory TestingTest AnalysisLaboratory TestsStatistical AnalysisDiscussion of Results This report presents a study of three typical tailings samples as potential cemented backfill in underground mines. The testing series was unique in that the pulp densities of the samples were all above 75 pct solids. Test results included dry density; slump

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  • uranium tailings mine backfill - bhcph.co.za

    Coarser mill tailings used as backfill to stabilize the stoped out areas in underground uranium mines is a potential source of radon contamination. This paper presents the quantitative assessment of radon emanation from the backfilled tailings in Jaduguda mine India using a cylindrical accumulator.

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  • Uranium Tailings Mine Backfill - triskelmassage.be

    Coarser mill tailings used as backfill to stabilize the stoped out areas in underground uranium mines is a potential source of radon contamination. This paper presents the quantitative assessment of radon emanation from the backfilled tailings in Jaduguda mine, India using a cylindrical accumulator.

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  • Uranium Mill Tailings Remediation in the

    Regardless, cases of higher lung cancer rates for uranium mine workers (ASCE 1986) and almost double the rate of leukemia for the county of Grand Junction, CO in comparison to rest of Colorado State (IAEA-TECDOC-1403) indicate that uranium mill tailings are a health risk, especially to those in close proximity. As a result, legislation was enacted to limit the number

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  • Alternative Uses of Tailings | Tailings

    Maxon equipment applications include; processing tailings from mining operation; paste treatment and backfill applications for underground hard rock mines; remediation of existing and closed mine tailing ponds; and tailing processing for coal fired power plants. Equipment includes single and twin shaft mixers, remixers and agitators for processing and placement of thickened tailings or paste

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  • Radon emanation from backfilled mill tailings in

    01.04.2014· Coarser mill tailings used as backfill to stabilize the stoped out areas in underground uranium mines is a potential source of radon contamination. This paper presents the quantitative assessment of radon emanation from the backfilled tailings

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  • Radon emissions during mill tailings backfill

    OSTI.GOV Journal Article: Radon emissions during mill tailings backfill operations in a uranium mine Title: Radon emissions during mill tailings backfill operations in a uranium mine Full Record

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  • Uranium tailings - Wikipedia

    Uranium tailings are a waste byproduct of uranium mining.In mining, raw uranium ore is brought to the surface and crushed into a fine sand. The valuable uranium-bearing minerals are then removed via heap leaching with the use of acids or bases, and the remaining radioactive sludge, called "uranium tailings", is stored in huge impoundments. A short ton (907 kg) of ore yield one to five pounds

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  • Preparation and Mechanical Properties of

    PDF | Backfilling disposal based on cement solidification is one of the ways to solve the environmental and safe problems of uranium tailing surface | Find, read and cite all the research you

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  • Tailings.info Backfill of Tailings to Underground

    The backfill tailings are generally mixed on the surface with the cement in a small processing plant and then piped either down a decline, shaft or surface borehole(s) into the area of the mine that requires backfilling. Figure 2: Paste backfill plant with deep cone thickener, Lisheen Mine, Ireland (© Jon Engels) Advantages: The tailings are stored underground and thus prevent surface

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  • Uranium mill tailings as backfill in underground

    01.10.1983· A study of the effects of backfilling with classified uranium mill tailings in an underground mine was conducted during 1982 at Denison Mines Ltd., Elliot Lake, Ontario.

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