Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering

This article presents an efficient approach for the analysis of combined electroosmotic dewatering (EOD) and mechanical expression (ME) using the Terzaghi-Voigt combined model by considering creep deformation of the material. The EOD-ME process enhances dewatering because it combines the advantage o...

Full description

Bibliographic Details
Main Authors: Iwata, Masashi, Jami, Mohammed Saedi
Format: Article
Language:English
Published: Taylor & Francis 2010
Subjects:
Online Access:http://irep.iium.edu.my/2936/
http://irep.iium.edu.my/2936/
http://irep.iium.edu.my/2936/
http://irep.iium.edu.my/2936/1/710041_791900679_923998396.pdf
id iium-2936
recordtype eprints
spelling iium-29362011-10-05T03:44:25Z http://irep.iium.edu.my/2936/ Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering Iwata, Masashi Jami, Mohammed Saedi TP155 Chemical engineering This article presents an efficient approach for the analysis of combined electroosmotic dewatering (EOD) and mechanical expression (ME) using the Terzaghi-Voigt combined model by considering creep deformation of the material. The EOD-ME process enhances dewatering because it combines the advantage of electroosmosis and mechanical dewatering, resulting in reduced void ratio compared to individual operation. The basic differential equation based on the model is solved analytically by assuming that both an electroosmotic pressure gradient Epg and a modified consolidation coefficient Ce of the material are constant, resulting in the equation of solid compressive pressure in the material as a function of time and position. The analysis also leads to the equation of the average consolidation ratio Uc, which is a measure of the progress of dewatering; this equation can describe well the empirical results under various conditions. The proposed approach can clearly explain the relationship of the driving forces of individual mode of operation. The large water content of semisolid bentonite–water mixture can effectively be reduced by the EOD-ME combined operation analyzed in this research. Taylor & Francis 2010-07-07 Article PeerReviewed application/pdf en http://irep.iium.edu.my/2936/1/710041_791900679_923998396.pdf Iwata, Masashi and Jami, Mohammed Saedi (2010) Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering. Drying Technology, 28 (7). pp. 881-889. ISSN 0737-3937 http://www.informaworld.com/smpp/title~content=t713597247 10.1080/07373937.2010.490505
repository_type Digital Repository
institution_category Local University
institution International Islamic University Malaysia
building IIUM Repository
collection Online Access
language English
topic TP155 Chemical engineering
spellingShingle TP155 Chemical engineering
Iwata, Masashi
Jami, Mohammed Saedi
Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
description This article presents an efficient approach for the analysis of combined electroosmotic dewatering (EOD) and mechanical expression (ME) using the Terzaghi-Voigt combined model by considering creep deformation of the material. The EOD-ME process enhances dewatering because it combines the advantage of electroosmosis and mechanical dewatering, resulting in reduced void ratio compared to individual operation. The basic differential equation based on the model is solved analytically by assuming that both an electroosmotic pressure gradient Epg and a modified consolidation coefficient Ce of the material are constant, resulting in the equation of solid compressive pressure in the material as a function of time and position. The analysis also leads to the equation of the average consolidation ratio Uc, which is a measure of the progress of dewatering; this equation can describe well the empirical results under various conditions. The proposed approach can clearly explain the relationship of the driving forces of individual mode of operation. The large water content of semisolid bentonite–water mixture can effectively be reduced by the EOD-ME combined operation analyzed in this research.
format Article
author Iwata, Masashi
Jami, Mohammed Saedi
author_facet Iwata, Masashi
Jami, Mohammed Saedi
author_sort Iwata, Masashi
title Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
title_short Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
title_full Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
title_fullStr Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
title_full_unstemmed Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
title_sort analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering
publisher Taylor & Francis
publishDate 2010
url http://irep.iium.edu.my/2936/
http://irep.iium.edu.my/2936/
http://irep.iium.edu.my/2936/
http://irep.iium.edu.my/2936/1/710041_791900679_923998396.pdf
first_indexed 2023-09-18T20:10:38Z
last_indexed 2023-09-18T20:10:38Z
_version_ 1777407453354262528