Seminar - “Flocculation of Mature Fine Tailings: Is there a Solution in Sight for the Canadian Oil Sands Environmental Challenge?” by Joao B.P. Soares, Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB
ABSTRACT: Oil sands are a strategic resource for Canada, but despite technological advances in extraction techniques, the treatment of tailing ponds resulting from bitumen extraction is plagued by many environmental challenges. The crucial technical challenge is to separate bitumen from the sand and clay particles, then flocculate or stack the clay particles to release water that can be recycled to the bitumen extraction process. The clays can then be placed in the mine, giving rapid reclamation without forming tailing ponds that may take decades to be reclaimed.