Water quality control at Bell Mine for a supernatant discharge to Babine Lake

CIM Bulletin, Vol. 79, No. 885, 1986

E. GOODWIN, Chief Chemist, Babine Mining Division, Maclaren Forest Products Inc.

Lime is commonly used for the neutralization of acid, and the removal of heavy metals in mine waste waters. However, the precipitation of heavy metals as hydroxides must take place under conditions of controlled pH, to produce minimum concentrations of dissolved metals. An account is presented explaining the concepts applied to lime-treatment processes at Bell Mine during the period of a supernatant discharge to Babine Lake; October 18, 1982 to January 25, 1983.
Keywords: Hydrometallurgy, Water treatment, Supernatant discharge, Tailings, Lime treatment, Environmental control