Disposal of untreated and treated mining wastes and tailings exerts a significant threat and
hazard for environmental contamination including groundwater, surface water, wetlands …

Oxidation of pyrrhotite-bearing aggregates is one of the major causes of concrete damage in
numerous buildings in Trois-Rivières in Canada and Connecticut in the USA. In the …

Mine backfill has become a common practice in many modern mining operations around the
world. Pastefill is an innovative tailings management method that returns much of this waste …

Molecular diffusion is an important mechanism for gas transport in various natural and man-
made systems. This is particularly the case with soil covers installed on acid-generating …

Covers with capillary barrier effects (CCBE) have been recently proposed as a viable option
for gas migration barriers. However, the effect of geometry on CCBE performance has not …

Covers installed over waste disposal sites are used to control water and gas exchanges with
the surrounding environment. One example involves covers built to limit oxygen flux to …

Covers with capillary barrier effects (CCBE) are considered to be one of the most effective
ways to control acid mine drainage (AMD) production from mine wastes. The use of low …

Metal sulfide oxidation is an important process in the past and present global
biogeochemical sulfur cycles. In this process, various sulfur compounds, namely elemental …

Acid mine drainage (AMD) is often treated using active lime treatment, which generates a
significant amount of sludge that contains mainly metal hydroxide precipitates, calcium …

A field study was conducted to assess the rates of oxygen consumption in the vadose zone
of sulphide mine tailings. Oxygen uptake rates were measured directly at the ground surface …