Red mud pilling method

Abstract

The invention relates to a red mud stockpiling method, in particular to a stockpiling treatment method for industrial waste residue exhausted during the process of production of alumina. The stockpiling treatment method is characterized in that the bottom of a red mud storage yard comprises a sand filter layer, a mounting plate layer which is made of cellular materials, a collecting conduit layerand a vertical recharging well which is communicated with the collecting conduit layer. When red mud is stored, wastewater from the red mud is infiltrated through a red mud layer and arrives at a collecting conduit through the sand filter layer, and water of the collecting conduit is gathered inside the recharging well through a communicating pipe, pumped out by a pump, and sent back to an aluminafactory, so that the wastewater from the red mud can be recovered to the maximum degree for a long time, and environmental pollution of alkaliferous waste from the red mud is eliminated.

Description

technical field [0001] The invention relates to a red mud stockpiling method, which relates to a stockpiling and treatment method of industrial waste residue discharged from the process of producing alumina. Background technique [0002] A large amount of red mud will be discharged in the production of alumina. Except for a small part that is used, most of the red mud needs to be piled up. Because a large amount of alkali-containing liquid attached to red mud pollutes the surface and underground water sources, the anti-seepage requirements of red mud storage yards are relatively high, so the cost of building red mud storage yards is relatively high. The current storage yard design and anti-seepage treatment are not reliable, because even after the storage yard is abandoned, it still needs to protect the environment for a long time, and the safe storage of red mud is very difficult. The stockpiling of red mud has become a restrictive factor for the development of alumina ind...

AI Technical Summary

Problems solved by technology

Because a large amount of alkali-containing liquid attached to red mud pollutes surface and underground water sources, the anti-seepage requirements of red mud stockyards are relatively high, so the cost of building red mud stockpiles is relatively high

The current storage yard design and anti-seepage treatment are not reliable, because even after the storage yard is abandoned, it still needs to protect the environment for a long time, and the safe storage of red mud is very difficult.

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