Book Description

This report contains a review of the measures taken to curtail mercury losses to liquid effluents from chor-alkali plants in Canada. Both mercury consumption and losses have been drastically reduced since 1970, when the significance of discharging inorganic mercury was first realised in Canada. Mercury consumed by the plants, per unit of production, has been reduced by approximately 50%. Mercury losses to liquid effluents have been reduced to less than 1%. Mercury purchases have also declined considerably in Canada. Plants records, and regulatory monitoring by both Federal and Provincial environmental control agencies, all confirm that these reductions are very significant.