Modular acid mine wastewater treatment equipment

Abstract

The invention discloses modular acid mine wastewater treatment equipment, and belongs to the technical field of wastewater treatment. The modular acid mine wastewater treatment equipment comprises a flocculation sedimentation tank, an adjusting tank, a clean water tank and a control chamber communicated with each treatment tank; the flocculation sedimentation tank is communicated with a water inlet, the adjusting tank is connected behind the flocculation sedimentation tank, the clean water tank is connected behind the adjusting tank, a first adjusting module is arranged in the adjusting tank, the first adjusting module comprises a mounting frame, a first storage piece is arranged in the mounting frame, the first storage piece is filled with a first mixture, the first mixture is a mixture of sludge carbon, organic fertilizer and palygorskite, and a second adjusting module is arranged below the first adjusting module; the second adjusting module comprises a second storage piece, the second storage piece is filled with a second mixture, and the second mixture is a mixture of limestone, zero-valent iron and a biological agent; a third water lifting pump is arranged in the clean water tank, and a water outlet pipe of the third water lifting pump is communicated with the flocculation sedimentation tank.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a modular acid mine waste water treatment equipment, which is suitable for efficient treatment of acid mine waste water and treatment of acid mine water inrush. Background technique [0002] Acid mine wastewater is a wastewater with a low pH that is formed when the metal sulfides in the ore are oxidized under the combined action of air, water, and microorganisms during mining or ore accumulation. Acid mine drainage is extremely acidic and can leach a variety of metal ions such as manganese, magnesium, aluminum, copper, lead, sodium, nickel, calcium and trace metals from residual ore bodies, waste rock piles, soils and sediments The concentration is very high, the pH value is about 2, the iron content is more than 6000 mg / L, and the sulfate content is more than 24000 mg / L. When acid mine wastewater comes into contact with underground aquifers, lakes, rivers, or othe...

AI Technical Summary

Problems solved by technology

There are still many problems in the treatment of acid mine wastewater: (1) For abandoned mines, the cost of restoration and treatment is particularly prominent because they cannot generate new economic benefits; (2) The treatment measures for most mine acid wastewater are slightly ineffective. Single, unable to fully reduce the impact of acid mine wastewater on the surrounding environment; (3) The implementation of the restoration project lacks a comprehensive preliminary investigation, and there is no comprehensive understanding of the hydrogeological background of the mine, which makes the restoration effect of the restoration project unsatisfactory. Unable to meet expectations

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