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Metals

Dissolved metals in mine water are coming under increasing regulatory scrutiny. Regulations are evolving to include: stricter limits; constituents not previously regulated; and more mine sites subject to regulation.

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Sulphate

Sulphate is a common by-product from mining activities. Coal and most metals are recovered from ore bodies containing sulphur based minerals that oxidize to sulphate when exposed to air.

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Selenium

Growing awareness of the environmental impact of selenium has resulted in selenium removal becoming an important issue for mining operations.

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Cyanide/SART

Cyanide leaching is widely used to extract gold from ore. This process is negatively impacted by the presence of cyanide-soluble base metals such as copper and zinc.

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