precipplant

Montana Resources copper precipitation plant adjacent to the Berkeley Pit. A 2013 slough of material from the Pit wall into the water knocked out the 'precip' pump, and precip operations have since ceased. In precipitation, the copper-rich water is pumped over scrap iron, and, in a replacement reaction, the copper solidifies as sludge, while iron takes its place in the water. The water was returned to the Pit by gravity flow, thus not increasing or decreasing the total volume of Pit water. Photo by Justin Ringsak.

Montana Resources copper precipitation plant adjacent to the Berkeley Pit. A 2013 slough of material from the Pit wall into the water knocked out the ‘precip’ pump, and precip operations have since ceased. In precipitation, the copper-rich water is pumped over scrap iron, and, in a replacement reaction, the copper solidifies as sludge, while iron takes its place in the water. The water was returned to the Pit by gravity flow, thus not increasing or decreasing the total volume of Pit water. Photo by Justin Ringsak.

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