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  2. In situ leach - Wikipedia

    en.wikipedia.org/wiki/In_situ_leach

    Since 1970, all commercial-scale ISL mines in the US have used carbonate solutions. [4] [5] ISL mining in Australia uses acid solutions. [6] Ion exchange resin beads. In-situ recovery involves the extraction of uranium-bearing water (grading as low as 0.05%, or 500 ppm, U 3 O 8). The extracted uranium solution is then filtered through resin ...

  3. Surface mining - Wikipedia

    en.wikipedia.org/wiki/Surface_mining

    The Siilinjärvi carbonatite complex, [1] an open-pit mine owned by Yara International, in Siilinjärvi, Finland Coal strip mine in Wyoming. Surface mining, including strip mining, open-pit mining and mountaintop removal mining, is a broad category of mining in which soil and rock overlying the mineral deposit (the overburden) are removed, in contrast to underground mining, in which the ...

  4. Froth flotation - Wikipedia

    en.wikipedia.org/wiki/Froth_flotation

    Diagram of a cylindrical flotation cell with camera and light used in image analysis of the froth surface. Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic. This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining ...

  5. Well drilling - Wikipedia

    en.wikipedia.org/wiki/Well_drilling

    Tricone rock bit. Well drilling is the process of drilling a hole in the ground for the extraction of a natural resource such as ground water, brine, natural gas, or petroleum, for the injection of a fluid from surface to a subsurface reservoir or for subsurface formations evaluation or monitoring.

  6. Borehole mining - Wikipedia

    en.wikipedia.org/wiki/Borehole_mining

    Borehole Mining (BHM) is a remote operated method of extraction (mining) of mineral resources through boreholes based on in-situ conversion of ores into a mobile form (slurry) by means of high pressure water jetting (hydraulicking). This process is carried-out from a land surface, open pit floor, underground mine or floating vessel through pre ...

  7. Water-energy nexus - Wikipedia

    en.wikipedia.org/wiki/Water-energy_nexus

    Hybrid Sankey diagram of 2011 U.S. interconnected water and energy flows. The water-energy nexus is the relationship between the water used for energy production, [1] including both electricity and sources of fuel such as oil and natural gas, and the energy consumed to extract, purify, deliver, heat/cool, treat and dispose of water (and wastewater) sometimes referred to as the energy intensity ...

  8. Mountaintop removal mining - Wikipedia

    en.wikipedia.org/wiki/Mountaintop_removal_mining

    The Clean Water Rule, a 2015 regulation published by EPA and the Army Corps of Engineers, "...more precisely defines waters protected under the Clean Water Act". The Energy Information Administration (EIA) stated that the Office of Surface Mining Reclamation and Enforcement (OSMRE), EPA and the Army are collaborating to prepare an environmental ...

  9. Penstock - Wikipedia

    en.wikipedia.org/wiki/Penstock

    A penstock is a sluice or gate or intake structure that controls water flow, or an enclosed pipe that delivers water to hydro turbines and sewerage systems. The term is of Scots origin, and was inherited from the earlier technology of mill ponds and watermills , with penstocks diverting pond waters to drive the mills.