Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion
Anaerobic digestion (AD) is a promising technology for biogas production, but optimizing feedstock composition is still a key challenge. The present study investigated invasive macroalgae Sargassum polycystum as co-feedstock source combined with pig dung to enhance methane production. Three feedstoc...
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Davao Oriental State University
2025-03-01
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| Series: | Davao Research Journal |
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| Online Access: | https://davaoresearchjournal.ph/index.php/main/article/view/347 |
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| author | Earl Francis A Busilaoco Wendyl M Aligato Jan Nico R Gaslang Hyrn G Almoroto Kristine Yhuri A Libreta Mervy Aretha Deon L Loon Camella A Redulla Darius Miguel Pederes Angela Glaiza B Pingcas Rovie Joice M Durante Ricksterlie C Verzosa |
| author_facet | Earl Francis A Busilaoco Wendyl M Aligato Jan Nico R Gaslang Hyrn G Almoroto Kristine Yhuri A Libreta Mervy Aretha Deon L Loon Camella A Redulla Darius Miguel Pederes Angela Glaiza B Pingcas Rovie Joice M Durante Ricksterlie C Verzosa |
| author_sort | Earl Francis A Busilaoco |
| collection | DOAJ |
| description | Anaerobic digestion (AD) is a promising technology for biogas production, but optimizing feedstock composition is still a key challenge. The present study investigated invasive macroalgae Sargassum polycystum as co-feedstock source combined with pig dung to enhance methane production. Three feedstock groups were assessed: (1) mechanically pretreated S. polycystum + pig dung, (2) untreated S. polycystum + pig dung, and (3) pig dung alone. Seaweed feedstocks were collected in Dahican beachline, and pig manure was sourced from a livestock auction market in the City of Mati, Davao Oriental, the Philippines. Feedstocks were loaded and inoculated in improvised biodigester. Methane concentrations were measured using a gas analyzer, and flammability test was conducted to evaluate biogas quality. Kruskal-Wallis test revealed significant differences in methane production across treatments (H(2) = 9.116, p = 0.010). The pretreated group exhibited the highest methane concentration (>9,999.00 ppm), followed by the untreated group (8,931.75 ppm), while the control group produced the lowest yield (3,644.25 ppm). Post hoc analysis confirmed a significant difference in methane yield in the pretreated group compared to the control (p = 0.010). Only biogas from pretreated group ignited, producing a blue flame indicating methane-rich, high-quality biogas. These findings highlight the dual benefit of using Sargassum macroalgae as co-feedstock, mitigating seaweed overgrowth in coastal areas and improving biogas production efficiency in pig manure. The study underscores the potential of seaweed-based co-digestion as an accessible, sustainable energy solution. Future research may explore long-term process stability, gas composition analysis, and the economic viability of large-scale applications. |
| format | Article |
| id | doaj-art-e538933d040544108bf101f82d3fa4e3 |
| institution | DOAJ |
| issn | 2244-4432 2984-7125 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Davao Oriental State University |
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| series | Davao Research Journal |
| spelling | doaj-art-e538933d040544108bf101f82d3fa4e32025-08-20T03:03:46ZengDavao Oriental State UniversityDavao Research Journal2244-44322984-71252025-03-0116110.59120/drj.v16i1.347347Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic DigestionEarl Francis A Busilaoco0https://orcid.org/0009-0002-1168-8085Wendyl M Aligato1https://orcid.org/0009-0008-7897-5736Jan Nico R Gaslang2https://orcid.org/0009-0001-3675-7174Hyrn G Almoroto3https://orcid.org/0009-0004-9075-2376Kristine Yhuri A Libreta4https://orcid.org/0009-0003-9327-5432Mervy Aretha Deon L Loon5https://orcid.org/0009-0002-4134-7433Camella A Redulla6https://orcid.org/0009-0001-1450-8708Darius Miguel Pederes7https://orcid.org/0009-0000-5301-413XAngela Glaiza B Pingcas8https://orcid.org/0009-0005-3231-5191Rovie Joice M Durante9https://orcid.org/0009-0000-5443-9885Ricksterlie C Verzosa10https://orcid.org/0000-0003-1872-6232Immaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, PhilippinesImmaculate Heart of Mary Academy, Manuel L. Quezon St., Central, City of Mati, 8200, Davao Oriental, Philippines.Faculty of Agriculture and Life Sciences. Davao Oriental State University, Dahican, City of Mati, 8200 Davao Oriental, PhilippinesAnaerobic digestion (AD) is a promising technology for biogas production, but optimizing feedstock composition is still a key challenge. The present study investigated invasive macroalgae Sargassum polycystum as co-feedstock source combined with pig dung to enhance methane production. Three feedstock groups were assessed: (1) mechanically pretreated S. polycystum + pig dung, (2) untreated S. polycystum + pig dung, and (3) pig dung alone. Seaweed feedstocks were collected in Dahican beachline, and pig manure was sourced from a livestock auction market in the City of Mati, Davao Oriental, the Philippines. Feedstocks were loaded and inoculated in improvised biodigester. Methane concentrations were measured using a gas analyzer, and flammability test was conducted to evaluate biogas quality. Kruskal-Wallis test revealed significant differences in methane production across treatments (H(2) = 9.116, p = 0.010). The pretreated group exhibited the highest methane concentration (>9,999.00 ppm), followed by the untreated group (8,931.75 ppm), while the control group produced the lowest yield (3,644.25 ppm). Post hoc analysis confirmed a significant difference in methane yield in the pretreated group compared to the control (p = 0.010). Only biogas from pretreated group ignited, producing a blue flame indicating methane-rich, high-quality biogas. These findings highlight the dual benefit of using Sargassum macroalgae as co-feedstock, mitigating seaweed overgrowth in coastal areas and improving biogas production efficiency in pig manure. The study underscores the potential of seaweed-based co-digestion as an accessible, sustainable energy solution. Future research may explore long-term process stability, gas composition analysis, and the economic viability of large-scale applications.https://davaoresearchjournal.ph/index.php/main/article/view/347anaerobic digestionbiogas systemsmethane productionpig dungsargassum |
| spellingShingle | Earl Francis A Busilaoco Wendyl M Aligato Jan Nico R Gaslang Hyrn G Almoroto Kristine Yhuri A Libreta Mervy Aretha Deon L Loon Camella A Redulla Darius Miguel Pederes Angela Glaiza B Pingcas Rovie Joice M Durante Ricksterlie C Verzosa Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion Davao Research Journal anaerobic digestion biogas systems methane production pig dung sargassum |
| title | Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion |
| title_full | Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion |
| title_fullStr | Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion |
| title_full_unstemmed | Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion |
| title_short | Utilizing Sargassum polycystum as Co-Feedstock to Enhance Methane Yield from Pig Dung in Anaerobic Digestion |
| title_sort | utilizing sargassum polycystum as co feedstock to enhance methane yield from pig dung in anaerobic digestion |
| topic | anaerobic digestion biogas systems methane production pig dung sargassum |
| url | https://davaoresearchjournal.ph/index.php/main/article/view/347 |
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