A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield
This study evaluates the performance of molasses (MS) co-digested with palm oil mill effluent (POME) and chicken manure (CM) to enhance methane production. The co-digestion of MS and CM at an optimum ratio of 7:1 yielded the highest biogas (520.2 mL/g VS) and methane (450.0 mL CH4/g VS), with a meth...
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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/2025/36/e3sconf_icsree2025_03002.pdf |
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| author | Aziz Izzah Farhana Ab Man Hasfalina Che Shukery Mohamad Firdza Mohamad Jaffar Mudzaffar Afzan Mohd Shern Hew Yoong Omar Rozita Jamali Nur Syakina |
| author_facet | Aziz Izzah Farhana Ab Man Hasfalina Che Shukery Mohamad Firdza Mohamad Jaffar Mudzaffar Afzan Mohd Shern Hew Yoong Omar Rozita Jamali Nur Syakina |
| author_sort | Aziz Izzah Farhana Ab |
| collection | DOAJ |
| description | This study evaluates the performance of molasses (MS) co-digested with palm oil mill effluent (POME) and chicken manure (CM) to enhance methane production. The co-digestion of MS and CM at an optimum ratio of 7:1 yielded the highest biogas (520.2 mL/g VS) and methane (450.0 mL CH4/g VS), with a methane content of 86.5%, significantly outperforming the co-digestion of MS and POME, which achieved a maximum methane yield of 208.4 mL CH4/g VS and a methane content of 61.1%. Kinetic modelling using the modified Gompertz equation demonstrated a strong correlation between predicted and observed results, with R2 values ranging from 0.986 to 0.996, confirming the model’s reliability for predicting biogas yields. The MS and CM combination also exhibited faster biogas production initiation, shorter lag phases, and more excellent process stability, attributed to the balanced carbon-to-nitrogen ratio and CM’s buffering capacity. These findings highlight the superior performance of the MS and CM combination in anaerobic co-digestion, offering a more efficient approach to biogas production compared to MS and POME. This research contributes to optimising co-digestion systems and provides a foundation for the scaling up of bioreactor designs, enhancing renewable energy production from organic waste. |
| format | Article |
| id | doaj-art-8f7499da5c1b4abe877792d47d5b125c |
| 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-8f7499da5c1b4abe877792d47d5b125c2025-08-20T03:31:33ZengEDP SciencesE3S Web of Conferences2267-12422025-01-016360300210.1051/e3sconf/202563603002e3sconf_icsree2025_03002A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane YieldAziz Izzah Farhana Ab0Man Hasfalina Che1Shukery Mohamad Firdza Mohamad2Jaffar Mudzaffar Afzan Mohd3Shern Hew Yoong4Omar Rozita5Jamali Nur Syakina6Department of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra MalaysiaDepartment of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra MalaysiaDepartment of Biological and Agricultural Engineering, Faculty of Engineering, Universiti Putra MalaysiaGreen Lagoon Technology Sdn Bhd, Pusat Perdagangan BandarGreen Lagoon Technology Sdn Bhd, Pusat Perdagangan BandarDepartment of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra MalaysiaDepartment of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra MalaysiaThis study evaluates the performance of molasses (MS) co-digested with palm oil mill effluent (POME) and chicken manure (CM) to enhance methane production. The co-digestion of MS and CM at an optimum ratio of 7:1 yielded the highest biogas (520.2 mL/g VS) and methane (450.0 mL CH4/g VS), with a methane content of 86.5%, significantly outperforming the co-digestion of MS and POME, which achieved a maximum methane yield of 208.4 mL CH4/g VS and a methane content of 61.1%. Kinetic modelling using the modified Gompertz equation demonstrated a strong correlation between predicted and observed results, with R2 values ranging from 0.986 to 0.996, confirming the model’s reliability for predicting biogas yields. The MS and CM combination also exhibited faster biogas production initiation, shorter lag phases, and more excellent process stability, attributed to the balanced carbon-to-nitrogen ratio and CM’s buffering capacity. These findings highlight the superior performance of the MS and CM combination in anaerobic co-digestion, offering a more efficient approach to biogas production compared to MS and POME. This research contributes to optimising co-digestion systems and provides a foundation for the scaling up of bioreactor designs, enhancing renewable energy production from organic waste.https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/36/e3sconf_icsree2025_03002.pdf |
| spellingShingle | Aziz Izzah Farhana Ab Man Hasfalina Che Shukery Mohamad Firdza Mohamad Jaffar Mudzaffar Afzan Mohd Shern Hew Yoong Omar Rozita Jamali Nur Syakina A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield E3S Web of Conferences |
| title | A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield |
| title_full | A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield |
| title_fullStr | A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield |
| title_full_unstemmed | A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield |
| title_short | A Comparative Study on the Effects of Co-Digesting Molasses with Palm Oil Mill Effluent (POME) or Chicken Manure on Biomethane Yield |
| title_sort | comparative study on the effects of co digesting molasses with palm oil mill effluent pome or chicken manure on biomethane yield |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2025/36/e3sconf_icsree2025_03002.pdf |
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