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Skip to Search Results- 1Aggregation
- 1Carboxymethyl chitosan
- 1Depressant
- 1Dewatering
- 1Differential flotation
- 1Differential settling
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Spring 2015
In many applications, it is desired to separate unwanted fine particulates from a liquid by gravity settling. An efficient separation, however, will be feasible only if a combination of aggregation and sedimentation occurs. To understand the kinetics of such a process, a mathematical model that...
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Carboxymethyl Chitosan as a Selective Depressant in Differential Flotation of Galena and Chalcopyrite
DownloadSpring 2015
Toxic inorganic depressants are routinely used in the differential flotation of polymetallic sulfide ores and it is desirable that they be replaced with environmentally benign chemicals. Chitosan, as a natural and non-toxic polymer, has been proven to be an efficient depressant for copper sulfide...
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Flocculation and dewatering of kaolinite suspensions and oil sands mature fine tailings using dual polymers
DownloadSpring 2015
The development of a method to consolidate and dewater Athabasca oil sands mature fine tailings (MFT) is one of the major challenges facing Alberta’s oil sands industry. This thesis presents studies performed on the flocculation and dewatering of kaolinite suspensions (the major clay component...
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Using Surface Geopolymerisation Reactions to Strengthen Athabasca Oil Sands Mature Fine Tailings
DownloadFall 2015
Bitumen extraction from oil sands operation in Fort McMurray, Canada produces an immense quantity of slurry waste that is discharged to tailings ponds. These ponds now stretch over a region which is roughly 1.5 times the area occupied by Vancouver city mainly due to slow consolidation process of...