Sentences with phrase «fine tailings»

Mature fine tailings are the big problem for oil sands extraction.

This time the company dredged up the stubborn mature fine tailings after just three years of settling in the pond, added a polymer and pumped it onto a sloping beach to dry — which it now did, to a chunky clay, in a matter of weeks.

Not exact matches

Conventional asphalt works fine, but Kjellberg is working with the Natural Resources Research Institute in Duluth to make a microwave - specific mix from recycled shingles and taconite tailings, especially since improved oil - refining technology is reducing asphalt supplies.

Shell Canada has started its commercial - scale Atmospheric Fines Drying field demonstration for managing tailings from its oil sands operations.

Tailings are a mixture of fine clay, sands, water and residual bitumen produced through... Read more →

However, the ERCB notes that all operators have committed significant resources towards managing their tailings in accordance with the objectives of Directive 074, made material progress in developing and implementing fines capture technologies as part of their tailings management plans...