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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| Format: | Article |
| Language: | English English English |
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Elsevier Inc.
2014
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| Online Access: | 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 |
| _version_ | 1848780029346971648 |
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| 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 |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T15:27:10Z |
| format | Article |
| id | iium-28893 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English English |
| last_indexed | 2025-11-14T15:27:10Z |
| publishDate | 2014 |
| publisher | Elsevier Inc. |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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, |
| spellingShingle | TA Engineering (General). Civil engineering (General) Tanaka, Takanori Fujihara, Kenji Jami, Mohammed Saedi Iwata, Masashi Constant-current electroosmotic dewatering of superabsorbent hydrogel |
| title | 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_short | Constant-current electroosmotic dewatering of superabsorbent hydrogel |
| title_sort | constant-current electroosmotic dewatering of superabsorbent hydrogel |
| topic | TA Engineering (General). Civil engineering (General) |
| 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 |