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...
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| Format: | Article |
| Language: | English |
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Taylor & Francis
2010
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| Online Access: | http://irep.iium.edu.my/2936/ http://irep.iium.edu.my/2936/1/710041_791900679_923998396.pdf |
| _version_ | 1848776076308774912 |
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| author | Iwata, Masashi Jami, Mohammed Saedi |
| author_facet | Iwata, Masashi Jami, Mohammed Saedi |
| author_sort | Iwata, Masashi |
| building | IIUM Repository |
| collection | Online Access |
| 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. |
| first_indexed | 2025-11-14T14:24:20Z |
| format | Article |
| id | iium-2936 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T14:24:20Z |
| publishDate | 2010 |
| publisher | Taylor & Francis |
| recordtype | eprints |
| repository_type | Digital Repository |
| 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 |
| spellingShingle | TP155 Chemical engineering Iwata, Masashi Jami, Mohammed Saedi Analysis of combined electroosmotic dewatering and mechanical expression operation for enhancement of dewatering |
| title | 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_short | 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 |
| topic | TP155 Chemical engineering |
| 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 |