Halim, Nurul Nornazifah Abdul and Sam, Suat Peng and Ng, Si Ling (2019) Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM). Journal of Physical Science, 30 (supp 2). pp. 141-151. ISSN 1675-3402
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Abstract
This study aimed to investigate the effect of glucose or sucrose as cosubstrate on the kinetics of 4-chlorophenol (4-CP) biodegradation by 4-CP-acclimated activated sludge. The performance of 4-CP biodegradation was enhanced in the presence of co-substrate with greater values of zero-order rate constant observed for sucrose compared to glucose at higher 4-CP concentration. The interaction effects of two factors, namely initial 4-CP and co-substrate concentrations ranging from 100–500 mg l–1 and 0–1000 mg l–1, respectively, on the biodegradation kinetics were examined by using response surface methodology (RSM). For glucose, the kinetics was found dependent on the 4-CP initial concentration. The optimised condition for 4-CP biodegradation in the presence of glucose was: 200 mg l–1 4-CP and 750 mg l–1 glucose with rate constant of 7.630 mg l–1 h–1
| Item Type: | Article |
|---|---|
| Subjects: | Q Science > QD Chemistry > QD415-436 Biochemistry Q Science > QD Chemistry > QD450-801 Physical and theoretical chemistry |
| Divisions: | Pusat Pengajian Sains Kimia (School of Chemical Sciences) > Article Zoom Profil Pakar (Expert Profile) > Ng Si Ling (Chemical Sciences) |
| Depositing User: | Administrator Automasi |
| Date Deposited: | 24 Sep 2021 05:43 |
| Last Modified: | 24 Sep 2021 05:43 |
| URI: | http://eprints.usm.my/id/eprint/50040 |
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