Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia
Food processing wastewater poses significant environmental challenges due to high pollutant levels, necessitating effective treatment methods. While Chlorella vulgaris has shown promise in wastewater treatment, the optimal light/dark photoperiod regimes for maximizing biomass growth, nutrient remova...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01003.pdf |
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| author | Abdul Ghani Syamimi Afiqah Chng Lee Muei Yeap Swee Pin Chan Derek Juinn Chieh Geng Jing Leong Sim Siong Toh Pey Yi |
| author_facet | Abdul Ghani Syamimi Afiqah Chng Lee Muei Yeap Swee Pin Chan Derek Juinn Chieh Geng Jing Leong Sim Siong Toh Pey Yi |
| author_sort | Abdul Ghani Syamimi Afiqah |
| collection | DOAJ |
| description | Food processing wastewater poses significant environmental challenges due to high pollutant levels, necessitating effective treatment methods. While Chlorella vulgaris has shown promise in wastewater treatment, the optimal light/dark photoperiod regimes for maximizing biomass growth, nutrient removal efficiency, and COD reduction remain underexplored. This study evaluates the effects of 12H:12H light/dark and 24H light photoperiods on the performance of C.vulgaris in treating food processing wastewater. The 12H:12H photoperiod achieved 73% COD removal with a biomass yield of 0.44 g/L, while the 24H light achieved 75% COD removal with a biomass yield of 1.02 g/L. Both photoperiods fully removed ammonia by day 12. Although the 24H light period increased biomass production, it is energy-intensive, whereas the 12H:12H photoperiod is more energy-efficient but requires further evaluation. These findings highlight the importance of optimizing photoperiod regimes to enhance the efficacy of microalgae-based wastewater treatment. This research supports sustainable wastewater management in the food industry and aims to meet regulatory standards through tailored photoperiod strategies. |
| format | Article |
| id | doaj-art-fb9446f8823646d796d31437f627f29e |
| institution | Kabale University |
| issn | 2267-1242 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj-art-fb9446f8823646d796d31437f627f29e2025-02-05T10:47:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016030100310.1051/e3sconf/202560301003e3sconf_isgst2024_01003Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in MalaysiaAbdul Ghani Syamimi Afiqah0Chng Lee Muei1Yeap Swee Pin2Chan Derek Juinn Chieh3Geng Jing4Leong Sim Siong5Toh Pey Yi6Department of Petrochemical Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul RahmanDepartment of Petrochemical Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul RahmanDepartment of Chemical & Petroleum Engineering, Faculty of Engineering, Technology & Built Environment, UCSI UniversitySchool of Chemical Engineering, Universiti Sains MalaysiaAcademician Workstation of Zhai Mingguo, University of SanyaDepartment of Petrochemical Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul RahmanDepartment of Petrochemical Engineering, Faculty of Engineering and Green Technology, Universiti Tunku Abdul RahmanFood processing wastewater poses significant environmental challenges due to high pollutant levels, necessitating effective treatment methods. While Chlorella vulgaris has shown promise in wastewater treatment, the optimal light/dark photoperiod regimes for maximizing biomass growth, nutrient removal efficiency, and COD reduction remain underexplored. This study evaluates the effects of 12H:12H light/dark and 24H light photoperiods on the performance of C.vulgaris in treating food processing wastewater. The 12H:12H photoperiod achieved 73% COD removal with a biomass yield of 0.44 g/L, while the 24H light achieved 75% COD removal with a biomass yield of 1.02 g/L. Both photoperiods fully removed ammonia by day 12. Although the 24H light period increased biomass production, it is energy-intensive, whereas the 12H:12H photoperiod is more energy-efficient but requires further evaluation. These findings highlight the importance of optimizing photoperiod regimes to enhance the efficacy of microalgae-based wastewater treatment. This research supports sustainable wastewater management in the food industry and aims to meet regulatory standards through tailored photoperiod strategies.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01003.pdf |
| spellingShingle | Abdul Ghani Syamimi Afiqah Chng Lee Muei Yeap Swee Pin Chan Derek Juinn Chieh Geng Jing Leong Sim Siong Toh Pey Yi Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia E3S Web of Conferences |
| title | Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia |
| title_full | Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia |
| title_fullStr | Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia |
| title_full_unstemmed | Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia |
| title_short | Optimizing photoperiods for enhanced microalgae-based phycoremediation of food wastewater in Malaysia |
| title_sort | optimizing photoperiods for enhanced microalgae based phycoremediation of food wastewater in malaysia |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/03/e3sconf_isgst2024_01003.pdf |
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