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Flocculation performance of anionic starch in oil sand tailings

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.2166/wst.2018.405
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Affiliation
  1. National Research Council of Canada. Energy, Mining and Environment
FormatText, Article
Subjectcarboxymethyl starch; dewatering; flocculants; oil sand tailings; settling rate
Abstract
A series of carboxymethyl starches (CMSs), with various degrees of substitution from 0.1 to 0.79, were synthesized and selected as a model to study the feasibility of using natural polymers as flocculants for oil sand tailings treatment. The flocculation performance of modified CMS in kaolin clay suspensions and oil sand tailings was evaluated in terms of settling rate, solids content, capillary suction time, and specific resistance to filtration of the sediment phase. It was found that the synthesized CMS effectively accelerates settling of kaolin suspensions and oil sand fine tailings, thus demonstrating the feasibility of this application.
Publication date
PublisherIWA Publishing
In
  • Water Science and Technology 78, no. 6: 1268–1275.
LanguageEnglish
Peer reviewedYes
NRC numberNRC-EME-55960
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Record identifier8e97d5ea-a7b5-48ee-bc72-ee1d8748606d
Record created2019-04-12
Record modified2020-06-03
Date modified: