Stability and Neutralisation Capacity Of Mine Backfill Formed by Neutralisation of Acid Mine Drainage With Fly Ash

Dense medium cyclones on the fine coal fraction lifted product yield well above the spiral circuit they were compared against and gave closer control of product quality. Cut point density control proved the hardest part of running the plant, medium properties being critical. Magnetic separator capacity had to match the duty, and a basement was needed to contain and recover medium spillage.

Grazing trials on tall fescue pasture irrigated with gypsiferous mine water on rehabilitated mined land, run over several seasons. The work covers steer stocking rates, dry matter intake by cattle, and the factors that control pasture quality and intake, among them nitrogen fertilisation, stage of growth, sward structure and grazing intensity. Findings are reported study by study.

Mines already provide substantial training and their junior managers were found motivated and committed, yet development at this level remains problematic. Gaps sat in commercial exposure, financial and accounting skills, industrial relations, quality standards, administration and project management. The report sets out the attributes to screen for at appointment and a framework that makes candidates responsible for their own development.