Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant
The clarification method by using composite flocculants in powder form has been proposed in the literature. In this study, fundamental aspects of the mechanism of turbidity removal using a composite dry powdered flocculant were investigated. The model composite flocculant comprises a mixture of ino...
| Main Authors: | , , , |
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| Format: | Proceeding Paper |
| Language: | English |
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2016
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| Online Access: | http://irep.iium.edu.my/52594/ http://irep.iium.edu.my/52594/1/52594_ROLE%20OF%20FLOCCULATION.pdf |
| _version_ | 1848784084975747072 |
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| author | Iwata, Masashi Shimo, Takayuki Tanaka, Takanori Jami, Mohammed Saedi |
| author_facet | Iwata, Masashi Shimo, Takayuki Tanaka, Takanori Jami, Mohammed Saedi |
| author_sort | Iwata, Masashi |
| building | IIUM Repository |
| collection | Online Access |
| description | The clarification method by using composite flocculants in powder form has been proposed in the literature. In this study, fundamental aspects of the mechanism of
turbidity removal using a composite dry powdered flocculant were investigated. The model composite flocculant comprises a mixture of inorganic flocculant (aluminum sulfate), anionic polymer flocculant, and a flocculation aid (calcium carbonate powder of 10 μm median diameter). A suspension of polymethyl methacrylate particle (PMMA, 0.15 or 0.4 μm in diameter) was used as a colloidal material. When the composite dry powdered flocculant is added to the colloidal suspension, the inorganic flocculant dissolves immediately. The polymer flocculant particles disperse well in the
suspension with the help of flocculation aid particles and dissolve moderately. Flocculation aid particles play an important role; i.e. they accelerate flocculation of
PMMA particles and attenuate the ability of the polymer flocculant particles to produce undissolved lumps. Since flocculation aid particles are much bigger than the colloidal particles, the aid particles act as targets for heterocoagulation of all suspended particles.
The existence of flocculation aid particles in the flocculation system seems to stabilize the flocculation process. It was observed that by the usage of composite flocculant which results in clear supernatant, percentages of adsorbed polymer flocculant were nearly constant; this implies that the adsorption of polymer flocculant onto solid particles is diffusion-limited. |
| first_indexed | 2025-11-14T16:31:38Z |
| format | Proceeding Paper |
| id | iium-52594 |
| institution | International Islamic University Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T16:31:38Z |
| publishDate | 2016 |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | iium-525942016-11-24T08:48:41Z http://irep.iium.edu.my/52594/ Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant Iwata, Masashi Shimo, Takayuki Tanaka, Takanori Jami, Mohammed Saedi TP155 Chemical engineering The clarification method by using composite flocculants in powder form has been proposed in the literature. In this study, fundamental aspects of the mechanism of turbidity removal using a composite dry powdered flocculant were investigated. The model composite flocculant comprises a mixture of inorganic flocculant (aluminum sulfate), anionic polymer flocculant, and a flocculation aid (calcium carbonate powder of 10 μm median diameter). A suspension of polymethyl methacrylate particle (PMMA, 0.15 or 0.4 μm in diameter) was used as a colloidal material. When the composite dry powdered flocculant is added to the colloidal suspension, the inorganic flocculant dissolves immediately. The polymer flocculant particles disperse well in the suspension with the help of flocculation aid particles and dissolve moderately. Flocculation aid particles play an important role; i.e. they accelerate flocculation of PMMA particles and attenuate the ability of the polymer flocculant particles to produce undissolved lumps. Since flocculation aid particles are much bigger than the colloidal particles, the aid particles act as targets for heterocoagulation of all suspended particles. The existence of flocculation aid particles in the flocculation system seems to stabilize the flocculation process. It was observed that by the usage of composite flocculant which results in clear supernatant, percentages of adsorbed polymer flocculant were nearly constant; this implies that the adsorption of polymer flocculant onto solid particles is diffusion-limited. 2016-10-11 Proceeding Paper NonPeerReviewed application/pdf en http://irep.iium.edu.my/52594/1/52594_ROLE%20OF%20FLOCCULATION.pdf Iwata, Masashi and Shimo, Takayuki and Tanaka, Takanori and Jami, Mohammed Saedi (2016) Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant. In: FILTECH 2016, 11th-13th Oct. 2016, Cologne, Germany. (Unpublished) |
| spellingShingle | TP155 Chemical engineering Iwata, Masashi Shimo, Takayuki Tanaka, Takanori Jami, Mohammed Saedi Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| title | Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| title_full | Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| title_fullStr | Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| title_full_unstemmed | Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| title_short | Role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| title_sort | role of flocculation aid particles in clarification of colloidal suspension using composite dry powdered flocculant |
| topic | TP155 Chemical engineering |
| url | http://irep.iium.edu.my/52594/ http://irep.iium.edu.my/52594/1/52594_ROLE%20OF%20FLOCCULATION.pdf |