Approaches to acid and metalliferous drainage management-implications of short-term trials for long-term remediation

摘要

Several waste rock (WR) acid and metalliferous drainage (AMD) management options have been tested at Brukunga Mine site for their long-term ability to suppress or minimise acidity loads emanating from the WR. A 12-24 month field demonstration assessed alkaline caps (enhanced caustic magnesia, and natural limestone), and limestone blends in their long-term capacity to control acidity loads.