Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4)
Carbon composites-immobilized cell was utilized to enhance biohydrogen production. The initial pH, temperature and agitation effect was studied using the one-factor-at-a-time (OFAT) method. The optimal initial pH obtained was at pH 6.0 with hydrogen yield (HY) of 2.66 ± 0.09 mol H2/mol sugar, correl...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2024
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| Online Access: | http://psasir.upm.edu.my/id/eprint/116600/ http://psasir.upm.edu.my/id/eprint/116600/1/116600.pdf |
| _version_ | 1848867046693011456 |
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| author | Mohd Jamaludin, Nina Farhana Engliman, Nurul Sakinah Abdul Manaf, Shareena Fairuz Idrus, Syazwani Abdullah, Luqman Chuah Jamali, Nur Syakina |
| author_facet | Mohd Jamaludin, Nina Farhana Engliman, Nurul Sakinah Abdul Manaf, Shareena Fairuz Idrus, Syazwani Abdullah, Luqman Chuah Jamali, Nur Syakina |
| author_sort | Mohd Jamaludin, Nina Farhana |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Carbon composites-immobilized cell was utilized to enhance biohydrogen production. The initial pH, temperature and agitation effect was studied using the one-factor-at-a-time (OFAT) method. The optimal initial pH obtained was at pH 6.0 with hydrogen yield (HY) of 2.66 ± 0.09 mol H2/mol sugar, correlating with Gompertz constant of Hm = 974.99 mL, Rm = 17.90 mL/h and λ = 1.70 h. At 60 °C, the highest HY was obtained at 2.75 ± 0.11 mol H2/mol sugar. These corresponded to the Gompertz constant of Hm = 934.58 mL, Rm = 18.78 mL/h and λ = 1.89 h. The optimal agitation obtained was at 120 rpm, attaining the highest HY of 3.44 ± 0.54 mol H2/mol sugar, corresponding to the Gompertz constant of Hm = 1054.86 mL, Rm = 24.37 mL/h and λ = 3.90 h. The rRNA sequencing result revealed that the predominant species in the study was Thermoanaerobacterium. This study provides critical insight into process control conditions on biohydrogen production. |
| first_indexed | 2025-11-15T14:30:16Z |
| format | Article |
| id | upm-116600 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T14:30:16Z |
| publishDate | 2024 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-1166002025-07-07T08:26:38Z http://psasir.upm.edu.my/id/eprint/116600/ Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) Mohd Jamaludin, Nina Farhana Engliman, Nurul Sakinah Abdul Manaf, Shareena Fairuz Idrus, Syazwani Abdullah, Luqman Chuah Jamali, Nur Syakina Carbon composites-immobilized cell was utilized to enhance biohydrogen production. The initial pH, temperature and agitation effect was studied using the one-factor-at-a-time (OFAT) method. The optimal initial pH obtained was at pH 6.0 with hydrogen yield (HY) of 2.66 ± 0.09 mol H2/mol sugar, correlating with Gompertz constant of Hm = 974.99 mL, Rm = 17.90 mL/h and λ = 1.70 h. At 60 °C, the highest HY was obtained at 2.75 ± 0.11 mol H2/mol sugar. These corresponded to the Gompertz constant of Hm = 934.58 mL, Rm = 18.78 mL/h and λ = 1.89 h. The optimal agitation obtained was at 120 rpm, attaining the highest HY of 3.44 ± 0.54 mol H2/mol sugar, corresponding to the Gompertz constant of Hm = 1054.86 mL, Rm = 24.37 mL/h and λ = 3.90 h. The rRNA sequencing result revealed that the predominant species in the study was Thermoanaerobacterium. This study provides critical insight into process control conditions on biohydrogen production. Elsevier 2024 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/116600/1/116600.pdf Mohd Jamaludin, Nina Farhana and Engliman, Nurul Sakinah and Abdul Manaf, Shareena Fairuz and Idrus, Syazwani and Abdullah, Luqman Chuah and Jamali, Nur Syakina (2024) Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4). Chemical Engineering Journal, 485. art. no. 149980. pp. 1-11. ISSN 1385-8947; eISSN: 1385-8947 https://linkinghub.elsevier.com/retrieve/pii/S1385894724014669 10.1016/j.cej.2024.149980 |
| spellingShingle | Mohd Jamaludin, Nina Farhana Engliman, Nurul Sakinah Abdul Manaf, Shareena Fairuz Idrus, Syazwani Abdullah, Luqman Chuah Jamali, Nur Syakina Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) |
| title | Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) |
| title_full | Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) |
| title_fullStr | Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) |
| title_full_unstemmed | Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) |
| title_short | Effect of pH, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (GAC-NiFe3O4) |
| title_sort | effect of ph, temperature and agitation on thermophilic biohydrogen production using immobilized cells on carbon composites (gac-nife3o4) |
| url | http://psasir.upm.edu.my/id/eprint/116600/ http://psasir.upm.edu.my/id/eprint/116600/ http://psasir.upm.edu.my/id/eprint/116600/ http://psasir.upm.edu.my/id/eprint/116600/1/116600.pdf |