Constant-current electroosmotic dewatering of superabsorbent hydrogel

The electroosmotic dewatering (EOD) behaviors of gelatinous materials, such as superabsorbent hydrogels or swelling clay, are discussed. The apparent liquid velocity through the materials can be represented in terms of effective-osmotic, electroosmotic and swelling pressure gradients. Taking the cre...

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Main Authors:	Tanaka, Takanori, Fujihara, Kenji, Jami, Mohammed Saedi, Iwata, Masashi
Format:	Article
Language:	English English English
Published:	Elsevier Inc. 2014
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://irep.iium.edu.my/28893/ http://irep.iium.edu.my/28893/ http://irep.iium.edu.my/28893/ http://irep.iium.edu.my/28893/1/Constant-current_electroosmotic.pdf http://irep.iium.edu.my/28893/4/constant-current_electroosmotic.pdf http://irep.iium.edu.my/28893/7/28893_Constant-current%20electroosmotic_SCOPUS.pdf

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recordtype	eprints
spelling	iium-288932017-09-19T07:38:56Z http://irep.iium.edu.my/28893/ Constant-current electroosmotic dewatering of superabsorbent hydrogel Tanaka, Takanori Fujihara, Kenji Jami, Mohammed Saedi Iwata, Masashi TA Engineering (General). Civil engineering (General) The electroosmotic dewatering (EOD) behaviors of gelatinous materials, such as superabsorbent hydrogels or swelling clay, are discussed. The apparent liquid velocity through the materials can be represented in terms of effective-osmotic, electroosmotic and swelling pressure gradients. Taking the creep deformation of the materials into consideration and assuming that the mechanical properties of the materials can be represented by the Terzaghi–Voigt combined model, the basic differential equation expressing EOD of gelatinous materials is solved. The progress of EOD is represented by an average consolidation ratio Uc as in mechanical expression. The agreement between calculated and experimental Uc is satisfactory when the creep deformation of the material is considered. The disagreement between theory and experiment in the latter part of EOD may be due to the change of the property of hydrogel caused by dissolution of Fe(III) from stainless steel electrode. Elsevier Inc. 2014-10-15 Article PeerReviewed application/pdf en http://irep.iium.edu.my/28893/1/Constant-current_electroosmotic.pdf application/pdf en http://irep.iium.edu.my/28893/4/constant-current_electroosmotic.pdf application/pdf en http://irep.iium.edu.my/28893/7/28893_Constant-current%20electroosmotic_SCOPUS.pdf Tanaka, Takanori and Fujihara, Kenji and Jami, Mohammed Saedi and Iwata, Masashi (2014) Constant-current electroosmotic dewatering of superabsorbent hydrogel. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 440. pp. 116-121. ISSN 0927-7757 http://www.sciencedirect.com/science/article/pii/S0927775712006966 http://dx.doi.org/10.1016/j.colsurfa.2012.10.020,
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Tanaka, Takanori Fujihara, Kenji Jami, Mohammed Saedi Iwata, Masashi Constant-current electroosmotic dewatering of superabsorbent hydrogel
description	The electroosmotic dewatering (EOD) behaviors of gelatinous materials, such as superabsorbent hydrogels or swelling clay, are discussed. The apparent liquid velocity through the materials can be represented in terms of effective-osmotic, electroosmotic and swelling pressure gradients. Taking the creep deformation of the materials into consideration and assuming that the mechanical properties of the materials can be represented by the Terzaghi–Voigt combined model, the basic differential equation expressing EOD of gelatinous materials is solved. The progress of EOD is represented by an average consolidation ratio Uc as in mechanical expression. The agreement between calculated and experimental Uc is satisfactory when the creep deformation of the material is considered. The disagreement between theory and experiment in the latter part of EOD may be due to the change of the property of hydrogel caused by dissolution of Fe(III) from stainless steel electrode.
format	Article
author	Tanaka, Takanori Fujihara, Kenji Jami, Mohammed Saedi Iwata, Masashi
author_facet	Tanaka, Takanori Fujihara, Kenji Jami, Mohammed Saedi Iwata, Masashi
author_sort	Tanaka, Takanori
title	Constant-current electroosmotic dewatering of superabsorbent hydrogel
title_short	Constant-current electroosmotic dewatering of superabsorbent hydrogel
title_full	Constant-current electroosmotic dewatering of superabsorbent hydrogel
title_fullStr	Constant-current electroosmotic dewatering of superabsorbent hydrogel
title_full_unstemmed	Constant-current electroosmotic dewatering of superabsorbent hydrogel
title_sort	constant-current electroosmotic dewatering of superabsorbent hydrogel
publisher	Elsevier Inc.
publishDate	2014
url	http://irep.iium.edu.my/28893/ http://irep.iium.edu.my/28893/ http://irep.iium.edu.my/28893/ http://irep.iium.edu.my/28893/1/Constant-current_electroosmotic.pdf http://irep.iium.edu.my/28893/4/constant-current_electroosmotic.pdf http://irep.iium.edu.my/28893/7/28893_Constant-current%20electroosmotic_SCOPUS.pdf
first_indexed	2023-09-18T20:42:27Z
last_indexed	2023-09-18T20:42:27Z
_version_	1777409455061729280

Constant-current electroosmotic dewatering of superabsorbent hydrogel

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