Diana Anne Bernard Dorai Raj (2007) Coagulation of turbid water by chitosan and alum. Universiti Malaysia Sabah. (Unpublished)
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Abstract
Coagulation efficiency of a biopolymer (i.e. chitosan) was investigated at different coagulant dosage, initial turbidity, mixing time and pH conditions using kaolin suspension as the test water. For comparison, a similar experiment was carried out using alum as the coagulant. The final turbidity was measured in each experiment using a turbidity meter. The results showed that chitosan was a more effective coagulant at low dosage compared to alum. Efficiency of turbidity removal increases as mixing time increased while alum, efficiency was not effect significantly affected. Both alum and chitosan efficiency increased as initial turbidity increased until a certain specific optimum level. Chitosan showed higher efficiency in alkaline condition compared to alum. The optimum pH for chitosan was in the range between pH 7-8.
| Item Type: | Academic Exercise |
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| Keyword: | coagulation, biopolymer, chitosan, initial turbidity, mixing time, pH, coagulant dosage, water, alum |
| Subjects: | Q Science > QD Chemistry |
| Department: | SCHOOL > School of Science and Technology |
| Depositing User: | SITI AZIZAH BINTI IDRIS - |
| Date Deposited: | 20 Jun 2013 11:45 |
| Last Modified: | 23 Oct 2017 12:46 |
| URI: | https://eprints.ums.edu.my/id/eprint/6333 |
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