Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM)
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 c...
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| Format: | Article |
| Language: | English |
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Penerbit Universiti Sains Malaysia
2019
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| Online Access: | http://eprints.usm.my/50040/ http://eprints.usm.my/50040/1/Nornazifah_JPS.pdf |
| _version_ | 1848881613384974336 |
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| author | Halim, Nurul Nornazifah Abdul Sam, Suat Peng Ng, Si Ling |
| author_facet | Halim, Nurul Nornazifah Abdul Sam, Suat Peng Ng, Si Ling |
| author_sort | Halim, Nurul Nornazifah Abdul |
| building | USM Institutional Repository |
| collection | Online Access |
| description | 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 |
| first_indexed | 2025-11-15T18:21:48Z |
| format | Article |
| id | usm-50040 |
| institution | Universiti Sains Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T18:21:48Z |
| publishDate | 2019 |
| publisher | Penerbit Universiti Sains Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | usm-500402021-09-24T05:43:54Z http://eprints.usm.my/50040/ Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM) Halim, Nurul Nornazifah Abdul Sam, Suat Peng Ng, Si Ling QD415-436 Biochemistry QD450-801 Physical and theoretical chemistry 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 Penerbit Universiti Sains Malaysia 2019 Article PeerReviewed application/pdf en http://eprints.usm.my/50040/1/Nornazifah_JPS.pdf 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 https://jps.usm.my/biodegradation-kinetics-of-4-chlorophenol/ |
| spellingShingle | QD415-436 Biochemistry QD450-801 Physical and theoretical chemistry Halim, Nurul Nornazifah Abdul Sam, Suat Peng Ng, Si Ling Studies of the Effects of Co-substrates on Biodegradation Kinetics of 4-Chlorophenol Using Response Surface Methodology (RSM) |
| title | Studies of the Effects of Co-substrates on Biodegradation Kinetics of
4-Chlorophenol Using Response Surface Methodology (RSM) |
| title_full | Studies of the Effects of Co-substrates on Biodegradation Kinetics of
4-Chlorophenol Using Response Surface Methodology (RSM) |
| title_fullStr | Studies of the Effects of Co-substrates on Biodegradation Kinetics of
4-Chlorophenol Using Response Surface Methodology (RSM) |
| title_full_unstemmed | Studies of the Effects of Co-substrates on Biodegradation Kinetics of
4-Chlorophenol Using Response Surface Methodology (RSM) |
| title_short | Studies of the Effects of Co-substrates on Biodegradation Kinetics of
4-Chlorophenol Using Response Surface Methodology (RSM) |
| title_sort | studies of the effects of co-substrates on biodegradation kinetics of
4-chlorophenol using response surface methodology (rsm) |
| topic | QD415-436 Biochemistry QD450-801 Physical and theoretical chemistry |
| url | http://eprints.usm.my/50040/ http://eprints.usm.my/50040/ http://eprints.usm.my/50040/1/Nornazifah_JPS.pdf |