Thixotropic strength measurement of oil sand fine tailings

1997 ◽  
Vol 34 (6) ◽  
pp. 974-984 ◽  
Author(s):  
Nagula N Suthaker ◽  
J Don Scott
Keyword(s):  
Oil Sand ◽  
Strength Measurement ◽  
Fine Tailings

Chemical Disequilibrium In Oil Sand Fine Tailings

1991 ◽  
Author(s):  
R. Jonasson ◽  
Z. Zhou ◽  
R. Schutte ◽  
L. Danielson
Keyword(s):  
Oil Sand ◽  
Fine Tailings

Effect of seasonal weather variations on the desiccation behavior of treated oil sand fine tailings

2015 ◽  
Vol 74 (2) ◽  
pp. 1711-1717 ◽  
Author(s):  
John Owolagba ◽  
Shahid Azam
Keyword(s):  
Oil Sand ◽  
Fine Tailings ◽  
Weather Variations ◽  
Seasonal Weather

scholarly journals Flocculation performance of anionic starch in oil sand tailings

2018 ◽  
Vol 78 (6) ◽  
pp. 1268-1275
Author(s):  
Nana Zhao ◽  
Hani Al Bitar ◽  
Yunyin Zhu ◽  
Yuming Xu ◽  
Zhiqing Shi
Keyword(s):  
Specific Resistance ◽  
Kaolin Clay ◽  
Settling Rate ◽  
Oil Sand ◽  
Natural Polymers ◽  
Capillary Suction ◽  
Fine Tailings ◽  
Solids Content ◽  
Clay Suspensions

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.

Hydrodynamics of a large oil sand tailings impoundment and related environmental implications

2009 ◽  
Vol 46 (12) ◽  
pp. 1446-1460 ◽  
Author(s):  
G. P. Ferguson ◽  
D. L. Rudolph ◽  
J. F. Barker
Keyword(s):  
Groundwater Flow ◽  
Environmental Impacts ◽  
Flow Characteristics ◽  
Coarse Sand ◽  
Process Water ◽  
Oil Sand ◽  
Environmental Implications ◽  
Fine Tailings ◽  
Flow Pathways

Oil sand mine tailings are primarily contained by dykes constructed of permeable sand tailings. The environmental impacts of process waters released from these tailings facilities are controlled by groundwater flow within the impoundment structures. Transient groundwater flow characteristics were assessed within the Tar Island Dyke structure at the Suncor Inc. site near Fort McMurray, Alberta, to assist in quantifying potential long-term environmental impacts. A sequence of low-permeability fine tailings underlying the tailings water pond is supported by coarse sand tailings that are connected to and form the containment dyke structure. A clay unit separates the foundation from the underlying limestone that is hydraulically connected to the Athabasca River. The primary groundwater flow pathways are through the toe of the dyke and through the foundation. Field data and numerical simulations indicate that drainage of process water within the structure remains transient yet decreases over time. The fine tailings and pond become perched atop unsaturated coarse tailings, significantly restricting seepage and producing an environmental legacy with reclamation implications. The release of potentially contaminated process water continues to decrease, resulting in diminishing environmental risk. The lowering of pore-water pressures within the main dyke has increased its strength and long-term stability.

Chemical Disequilibrium In Oil Sand Fine Tailings

1991 ◽  
Author(s):  
R.G. Jonasson ◽  
Z. Zhou ◽  
R. Schutte ◽  
L. Danielson
Keyword(s):  
Oil Sand ◽  
Fine Tailings

scholarly journals Short-term dewatering of treated oil sand fine tailings

2017 ◽  
Vol 6 (1) ◽  
Author(s):  
John Owolagba ◽  
Shahid Azam
Keyword(s):  
Oil Sand ◽  
Short Term ◽  
Fine Tailings

Synergy between Dual Polymers and Sand-to-Fines Ratio for Enhanced Flocculation of Oil Sand Mature Fine Tailings

2021 ◽  
Author(s):  
Joe Zhou ◽  
Haihong Li ◽  
Xuehua Zhang
Keyword(s):  
Oil Sand ◽  
Mature Fine Tailings ◽  
Fine Tailings

scholarly journals Shear behvaiour of oil sand fine tailings in simple shear and triaxial devices

2014 ◽  
Author(s):  
Mahsa Gholami
Keyword(s):  
Simple Shear ◽  
Oil Sand ◽  
Fine Tailings
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