acid mine drainage

(redirected from Acid rock drainage)
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acid mine drainage

[′as·əd ′mīn ‚drā·nij]
(mining engineering)
Drainage from bituminous coal mines containing a large concentration of acidic sulfates, especially ferrous sulfate.
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2001, "Assessment of acid rock drainage pollutants release in the uranium mining site of Pocos de Caldas-Brazil," Journal of Environmental Radioactivity, 54, pp.
Naturally occurring acid rock drainage can produce a trickle of acidic water that stains rock faces red.
Yanful EK, Shikatani KS (1995) Compatibility of a sand-bentonite mixture with acid rock drainage.
For more information about the I-99 acid rock drainage problem in Centre County, visit DEP's Web site at http://www.
The property is highway accessible year-round; is not a wild or scenic area; does not drain into any sensitive streams; has ample fuel, water and power available; is within commuting distance of work force towns and has no acid rock drainage problems.
A Naturalization Potential Ratio ("NPR") greater than 2 has a low possibility of generating Acid Rock Drainage ("ARD") while an NPR value greater than 4 is deemed to have no potential to generate ARD.
It is not a wild or scenic area, does not drain into sensitive streams and exhibits no acid rock drainage problems.
Coal Harbour -- Hankin Point on Vancouver Island covers silica, alumina and limestone, providing tested potential for manufacture of Portland cement and production of acid rock drainage neutralizing agent.
The material in the Wanagon basin includes the byproduct of treating acid rock drainage from the overburden in the basin with lime as approved by DOME in PT-FI's mine plan.
The property is highway accessible year around, is not in a wild or scenic area, does not drain into sensitive rivers, has no fish in its streams and no acid rock drainage problems.