MEND Report 2.13.2b

This work was done on behalf of MEND and sponsored by the Canada Centre for Mineral and Energy Technology (CANMET) through the CANADA/Québec Mineral Development Agreement

March 1994

EXECUTIVE SUMMARY

Acid generating tailings is a problem to be solved in the mining industry. By limiting the available oxygen for the oxidation process, water covers is one of the methods to control the acid generation. This study evaluates the optimum height of water required to prevent the re-suspension of solid particles and thus reducing the environmental impact on a specific site - Solbec Cupra. Based on the experimental results, it has been found that the minimum height of water above the reactive tailing should be 1.341m. However, with a layer of sand on top of the tailings the required level may be reduced to 0.741m. Also, it has been calculated that a layer of sand can reduce the total sediment load from 331.1 to 41.8 m3/m/day.

Last Modified: 2003-11-26		Important Notices

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