chemical reactions to remediate environments affected by copper mining

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Jul 26, 2018 · The chemical reactions that form AMD are sped up greatly by the activity of iron- and sulfur-oxidizing microbes, including bacteria and Archaea (formerly known as archaebacteria). AMD also further dissolves other heavy metals that are present at Iron Mountain (copper, zinc and cadmium) into ground or surface water

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The resulting chemicals in the water are sulfuric acid and dissolved iron. Some or all of this iron can come out as solids to form the red, orange, or yellow sediments in the bottom of streams containing mine drainage. The acid runoff further dissolves heavy metals such as copper, lead, mercury into groundwater or surface water. The rate and degree by which acid-mine drainage proceeds can be increased by the …

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Hardrock mining is a large-scale industrial activity that takes place in the natural environment, potentially disturbing large amounts of material and land area. Hardrock mining generates large volumes of mining waste because of the high waste-to-product ratios associated with producing most ores

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