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A new method for the theoretical analysis of electroforced sedimentation using Terzaghi-Voigt combined model

Jami, Mohammed Saedi and Iwata, Masashi (2008) A new method for the theoretical analysis of electroforced sedimentation using Terzaghi-Voigt combined model. Separation Science and Technology, 43 (5). pp. 979-995. ISSN 1520-5754 (O), 0149-6395 (P)

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Abstract

In this article a new method for the theoretical analysis of electroforced sedimentation (EFS) by use of the Terzaghi-Voigt combined model is presented. Zinc oxide and a mixture of zinc oxide and KC-flock are used as experimental materials. Both the electro-osmotic pressure gradient Epg and the modified consolidation coefficient Ce of the materials are assumed to be constant. The analytical solution can explain the solid compressive pressure distribution with time and position. The progress of electroforced sedeimentation can be represented by an average consolidation ratio Uc as in mechanical expression. Variations of the effectiveness of EFS with the percentage of KC-flock in the mixture, electric current density, and total solid volume per unit cross-sectional area are investigated. EFS is best applied for materials with permanent charge.

Item Type: Article (Journal)
Additional Information: 5545/40895
Uncontrolled Keywords: Electro‐osmosis, sedimentation, solid‐liquid separation, creep deformation
Subjects: T Technology > TP Chemical technology > TP155 Chemical engineering
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Engineering > Department of Biotechnology Engineering
Depositing User: Associate Dr. Mohammed Saedi Jami, PhD CEng MIChemE
Date Deposited: 05 Mar 2015 15:48
Last Modified: 05 Mar 2015 15:48
URI: http://irep.iium.edu.my/id/eprint/40895

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