This bulletin describes various methods of tailings transport (slurries vs. dry tailings), tailings placement (cyclone, spigot, paddock, mechanical placement), and decant systems. The bulletin is intended to provide advice for design of these elements based on project-specific characteristics. The bulletin also provides guidance for assessing the water balance of a tailings impoundment.
The objective of this report is intended to be a technology deployment roadmap for "end to end" solutions for oil sands tailings. This technology deployment roadmap and action plan that will assist regulators and industry to create and implement technology solutions that will meet the goals of Alberta Environment (AEW) Directive 047. The report is broken into 4 components that includes a review of current technologies used in the oil sands industry, evaluation of these technologies, and highlights technologies to improve upon existing methods.
Results of Component 1 of the Oil Sands Tailings Technology Deployment Roadmap. This report gathered available information on oil sands tailings, summarized the current state of knowledge and practice, and identified and described tailings management technologies used in the oil sands and around the world. Component 1 identified 101 unique technologies, broken into 8 main tailings schemes and categorized as pre-commercial or in commercial use.
Copmonent 4 of the Oild Sands Tailings Technology Deployment Roadmap. This report intends to identify technologies and/or suites of technologies which could improve the ability of tailings management practices to meet the previously defined goals, and the pathways by which they could be brought through the research and development process to commercial implementation.
Paste thickening represents a proven and effective method for the safe disposal of tailings and maximises water recovery. The optimum density for disposal is often at the limits of that achievable in commercially available thickeners. This paper looks at the options available to increase paste density to meet the disposal requirements and to stabilise paste properties through blending filtered tailings with thickened tailings, supported by experimental data and case studies.