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TitleImpact of flocculation-based dewatering on the shear strength of oil sands fine tailings
Publication TypeJournal Article
Year of Publication2013
AuthorsBeier, N., Wilson W., Dunmola A., & Sego D.
Volume50
Issue9
Pagination6 pages
PublisherCanadian Geotechnical Journal
Publication Languageeng
Keywordsgeotechnical properties, tailings, tailings treatment, UofA
Abstract

The oil sands in northern Alberta have been mined to produce bitumen over the past five decades. Since the 1980s, technical advances have been made in mining, material handling, and bitumen extraction. However, acquiring practical methods to control and reduce the fluid fine tailings build-up has been an ongoing challenge. Recent regulatory changes have driven the industry to review current tailings-management techniques and investigate numerous alternative technologies and processes to manage and reclaim fine tailings. Many of these fine tailings–management techniques involve some form of polymer or chemical addition to promote dewatering and strength gain to meet the regulatory requirements. Based on the reported data, the chemically amended fine tailings deposits have the characteristics of sensitive, metastable deposits, necessitating additional mitigative measures by oil sands operators beyond the regulatory requirements. This paper explores the geotechnical aspects of meeting regulatory strength performance criteria by employing flocculation-based dewatering of fluid fine tailings.

URLhttps://www.researchgate.net/publication/261855216
Locational Keywords

Athabasca Oil Sands Region (AOSR)

Active Link

http://www.worldcat.org/oclc/5150193509

Group

OSEMB

Citation Key52593

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