Al-PAM assisted filtration system for abatement of mature fine tailings

被引：54

作者：

Alamgir, Aurangzeb ^{[2
]}

Harbottle, David ^{[2
]}

Masliyah, Jacob ^{[2
]}

Xu, Zhenghe ^{[1
,2
]}

机构：

[1] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

[2] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada

来源：

CHEMICAL ENGINEERING SCIENCE | 2012年 / 80卷

基金：

加拿大自然科学与工程研究理事会;

关键词：

Filtration; Hybrid polymer; Stackable filter cake; Tailings; Environment; Slurries; OIL SANDS TAILINGS; FLOCCULATION; SUSPENSIONS; RHEOLOGY; POLYMER; HYBRID; PH;

D O I：

10.1016/j.ces.2012.06.010

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

With its potential to produce stackable solids for backfill (land reclamation) and the highest quality and quantity of water (filtrate) for recycle, filtration for treating mature fine tailings (MFT) using an in-house synthesized, organic-inorganic hybrid polymer (flocculant), Al-PAM, as a filtration aid was developed and tested on a MFT from oil sands operations. After proper dilution of the MFT from 30 wt% to 10 wt% solids, Al-PAM was found to be an effective filtration aid. A two-step process: Al-PAM flocculation and thickening of diluted MET, followed by filtration of thickener underflow to produce a stackable filter cake and virtually solids-free filtrate was found to be the most appealing. This study clearly showed that Al-PAM assisted filtration is a viable solution to reduce the inventory of MET and associated liability while maximizing recovery (recycle) of process-affected water. (C) 2012 Elsevier Ltd. All rights reserved.

引用

页码：91 / 99

页数：9

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