Biomineralization-based acidic mine wastewater treatment system and treatment method
An acid mine wastewater, biological mineralization technology, applied in mining wastewater treatment, biological water/sewage treatment, multi-stage water treatment, etc. volume reduction effect
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[0028] In order to enable those skilled in the art to better understand that the technical solutions of the present invention can be implemented, the present invention will be further described below in conjunction with the accompanying drawings and specific examples, but the given examples are not intended to limit the present invention.
[0029] Acid mine wastewater is a type of extremely strong acid formed during the mining and utilization of coal mines and various metal mines, with a pH of 2.0 to 3.5, rich in Fe and SO 4 2- and a variety of heavy (class) metal ions Cu, As, etc.; Fe present in the liquid phase system in acidic mine wastewater 3+ Can greatly increase the amount of lime needed for neutralization. Therefore, in order to reduce the subsequent lime consumption, the system Fe 3+ Secondary iron minerals are biosynthesized under the action of microorganisms, and the pH of the acid mine wastewater system is usually between 2 and 3. And the neutralization residue ...
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