Citation
Lam Man Kee, . and Uganeeswary Suparmaniam, . and Lim Jun Wei, . and Tan Inn Shi, . and Teh Huey Ying, . and Kansedo Jibrail, . and Uemura Yoshimitsu, . and Lim Steven, . Harvesting of Chlorella vulgaris biomass by using different bio-flocculants: a comparison study. pp. 17-27. ISSN 2289-1692
Abstract
In the present study several natural flocculants were extracted from natural resources to harvest Chlorella vulgaris. Jar tests were carried out to evaluate the flocculation efficiencies of the extracted flocculants in harvesting C. vulgaris cells. Chitosan and maize seeds were proven to be effective flocculants as they achieved more than 80 efficiency after one(1) hour and four (4) hours of sedimentation time respectively. Under the optimum flocculation conditions of pH 7 2 mg/L dosage 120 rpm of stirring speed for chitosan; and pH 3 450 mg/L of dosage 15 rpm of stirring speed for maize seeds flocculant; the flocculation efficiencies up to 97.9 and 84.7 are able to achieved respectively. A scale-up study was done to test the flocculation ability of chitosan and maize seeds extracts to harvest 1 L of C. vulgaris. Approximately 97 and 82 of flocculation efficiencies were achieved by chitosan and maize seeds flocculants respectively under their optimum flocculation conditions. Comparatively chitosan offer superiority in flocculating C. vulgaris than maize seeds ex-tract in terms of floc size dosage and sedimentation time.
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Abstract
In the present study several natural flocculants were extracted from natural resources to harvest Chlorella vulgaris. Jar tests were carried out to evaluate the flocculation efficiencies of the extracted flocculants in harvesting C. vulgaris cells. Chitosan and maize seeds were proven to be effective flocculants as they achieved more than 80 efficiency after one(1) hour and four (4) hours of sedimentation time respectively. Under the optimum flocculation conditions of pH 7 2 mg/L dosage 120 rpm of stirring speed for chitosan; and pH 3 450 mg/L of dosage 15 rpm of stirring speed for maize seeds flocculant; the flocculation efficiencies up to 97.9 and 84.7 are able to achieved respectively. A scale-up study was done to test the flocculation ability of chitosan and maize seeds extracts to harvest 1 L of C. vulgaris. Approximately 97 and 82 of flocculation efficiencies were achieved by chitosan and maize seeds flocculants respectively under their optimum flocculation conditions. Comparatively chitosan offer superiority in flocculating C. vulgaris than maize seeds ex-tract in terms of floc size dosage and sedimentation time.
Additional Metadata
| Item Type: | Article |
|---|---|
| AGROVOC Term: | Chlorella vulgaris |
| AGROVOC Term: | Aquatic plants |
| AGROVOC Term: | Harvesting |
| AGROVOC Term: | Natural resources |
| AGROVOC Term: | Flocculation |
| AGROVOC Term: | Flocculation tests |
| AGROVOC Term: | Maize |
| AGROVOC Term: | Chitosan |
| AGROVOC Term: | Stirring |
| AGROVOC Term: | Size |
| Depositing User: | Mr. AFANDI ABDUL MALEK |
| Last Modified: | 24 Apr 2025 00:55 |
| URI: | http://webagris.upm.edu.my/id/eprint/9419 |
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