Removal of emulsion droplets by immobilization in calcium alginate gel
A novel technique utilizing particle immobilization in hydrogels has been proposed for a solid-liquid separation of difficult-to-filter colloidal suspensions. Fundamental aspects of this process are investigated using oil in water (O/W) emulsion as colloidal materials. A mixture of alginate aqueous...
| Main Authors: | , , , , |
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| Format: | Proceeding Paper |
| Language: | English English |
| Published: |
2013
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/34602/ http://irep.iium.edu.my/34602/1/FILTECH_Hayashi_130625_Jami_2.pdf http://irep.iium.edu.my/34602/4/Filtech2013.pdf |
| _version_ | 1848780933168103424 |
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| author | Hayashi, Natsuko Tanaka, Takanori Yamada, Ryuhei Jami, Mohammed Saedi Iwata, Masashi |
| author_facet | Hayashi, Natsuko Tanaka, Takanori Yamada, Ryuhei Jami, Mohammed Saedi Iwata, Masashi |
| author_sort | Hayashi, Natsuko |
| building | IIUM Repository |
| collection | Online Access |
| description | A novel technique utilizing particle immobilization in hydrogels has been proposed for a solid-liquid separation of difficult-to-filter colloidal suspensions. Fundamental aspects of this process are investigated using oil in water (O/W) emulsion as colloidal materials. A mixture of alginate aqueous solution and colloidal suspension is added dropwise to a calcium chloride aqueous solution, resulting in calcium alginate gel. Colloidal oil droplets are immobilized in the gel. The gel suspension is dehydrated gravitationally, followed by mechanical expression of the gel particles. During the expression, the colloidal oil components remain in the gel and the expressed liquid is clear. The expressed gel is then discarded. O/W emulsions are effectively treated by this method; i.e. leakages of oil into a supernatant of gel suspension and into a squeezed liquid were less than 6% and 3% of oil, respectively, both in kerosene-alginate mixture and cyclohexane-alginate mixture. It is confirmed that oil droplets in the gel network behave to interfere with the liquid flow in the gel particles during expression. From numerical analysis of simplex procedure, it is clarified that oil droplets were entrapped in gel network. |
| first_indexed | 2025-11-14T15:41:32Z |
| format | Proceeding Paper |
| id | iium-34602 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English English |
| last_indexed | 2025-11-14T15:41:32Z |
| publishDate | 2013 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-346022014-01-23T07:00:42Z http://irep.iium.edu.my/34602/ Removal of emulsion droplets by immobilization in calcium alginate gel Hayashi, Natsuko Tanaka, Takanori Yamada, Ryuhei Jami, Mohammed Saedi Iwata, Masashi TP155 Chemical engineering A novel technique utilizing particle immobilization in hydrogels has been proposed for a solid-liquid separation of difficult-to-filter colloidal suspensions. Fundamental aspects of this process are investigated using oil in water (O/W) emulsion as colloidal materials. A mixture of alginate aqueous solution and colloidal suspension is added dropwise to a calcium chloride aqueous solution, resulting in calcium alginate gel. Colloidal oil droplets are immobilized in the gel. The gel suspension is dehydrated gravitationally, followed by mechanical expression of the gel particles. During the expression, the colloidal oil components remain in the gel and the expressed liquid is clear. The expressed gel is then discarded. O/W emulsions are effectively treated by this method; i.e. leakages of oil into a supernatant of gel suspension and into a squeezed liquid were less than 6% and 3% of oil, respectively, both in kerosene-alginate mixture and cyclohexane-alginate mixture. It is confirmed that oil droplets in the gel network behave to interfere with the liquid flow in the gel particles during expression. From numerical analysis of simplex procedure, it is clarified that oil droplets were entrapped in gel network. 2013-10 Proceeding Paper PeerReviewed application/pdf en http://irep.iium.edu.my/34602/1/FILTECH_Hayashi_130625_Jami_2.pdf application/pdf en http://irep.iium.edu.my/34602/4/Filtech2013.pdf Hayashi, Natsuko and Tanaka, Takanori and Yamada, Ryuhei and Jami, Mohammed Saedi and Iwata, Masashi (2013) Removal of emulsion droplets by immobilization in calcium alginate gel. In: FILTECH 2013, 22nd-24th Oct. 2013, Wiesbaden, Germany . (Unpublished) https://filtech.de/pdfs/filtech2013_conference_programme.pdf |
| spellingShingle | TP155 Chemical engineering Hayashi, Natsuko Tanaka, Takanori Yamada, Ryuhei Jami, Mohammed Saedi Iwata, Masashi Removal of emulsion droplets by immobilization in calcium alginate gel |
| title | Removal of emulsion droplets by immobilization in
calcium alginate gel
|
| title_full | Removal of emulsion droplets by immobilization in
calcium alginate gel
|
| title_fullStr | Removal of emulsion droplets by immobilization in
calcium alginate gel
|
| title_full_unstemmed | Removal of emulsion droplets by immobilization in
calcium alginate gel
|
| title_short | Removal of emulsion droplets by immobilization in
calcium alginate gel
|
| title_sort | removal of emulsion droplets by immobilization in
calcium alginate gel |
| topic | TP155 Chemical engineering |
| url | http://irep.iium.edu.my/34602/ http://irep.iium.edu.my/34602/ http://irep.iium.edu.my/34602/1/FILTECH_Hayashi_130625_Jami_2.pdf http://irep.iium.edu.my/34602/4/Filtech2013.pdf |