Filter Cake, which contains leachable nickel and vanadium above the criteria in the
Alberta Waste Control Regulation, is produced at an oil sands facility operated by Nexen Inc.
and is currently being disposed in a landfill. Bench scale and field tests were performed with
stabilization/solidification (S/S) treatment reagents such as Portland cement, fly ash, elemental
sulphur, and CETCO Oilfield Service’s proprietary reagents to assess their efficacy at reducing
leachable metals in Filter Cake. The CETCO reagents were the most effective treatment for
reducing leachable nickel and vanadium in Filter Cake. Treatments with Portland cement were
successful in bench scale tests, but inconsistent in field tests. The inconsistent results obtained
for Portland cement may have been due to interferences of the cement reactions from factors
such as fine particulates. S/S treatments of Filter Cake present a viable waste management
option. However, the associated reduced cost and environmental impacts were not substantial.
| Identifer | oai:union.ndltd.org:LACETR/oai:collectionscanada.gc.ca:BRC.10170/499 |
| Date | 22 May 2012 |
| Creators | Bower, Charles |
| Contributors | Dodd, Matt, Noble, Michael-Anne |
| Source Sets | Library and Archives Canada ETDs Repository / Centre d'archives des thèses électroniques de Bibliothèque et Archives Canada |
| Detected Language | English |
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