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Large amounts of water used for mine drainage, mine cooling, aqueous extraction and other mining processes increases the potential for these chemicals to contaminate ground and surface water. As mining produces copious amounts of waste water, disposal methods are limited due to contaminates within the waste water.
Mining can also have an effect on water before the extraction process. During exploration, roads may be poorly built resulting in sedimentation which disrupts water quality. [ 18 ] Overall, water quality can be impacted as a result of acid mine drainage, heavy metal contamination and leaching, processing chemicals pollution, and erosion and ...
United States 1960 postal stamp advocating water conservation. Water conservation aims to sustainably manage the natural resource of fresh water, protect the hydrosphere, and meet current and future human demand. Water conservation makes it possible to avoid water scarcity. It covers all the policies, strategies and activities to reach these aims.
Mine dewatering is the action of removing groundwater from a mine. When a mine extends below the water table groundwater will, due to gravity, infiltrate the mine working. On some projects groundwater is a minor impediment that can be dealt with on an ad-hoc basis.
Download as PDF; Printable version; ... Water management in mining (3 C, 13 P) Pages in category "Mining techniques"
Dual-phase vacuum extraction (DPVE), also known as multi-phase extraction, is a technology that uses a high-vacuum system to remove both contaminated groundwater and soil vapor. In DPVE systems, a high-vacuum extraction well is installed with its screened section in the zone of contaminated soils and groundwater.
Brine treatment is commonly encountered when treating cooling tower blowdown, produced water from steam-assisted gravity drainage (SAGD), produced water from natural gas extraction such as coal seam gas, frac flowback water, acid mine or acid rock drainage, reverse osmosis reject, chlor-alkali wastewater, pulp and paper mill effluent, and waste ...
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 beads. [5] Through an ion exchange process, the resin beads attract uranium from the solution.