Effect of biochar addition on biogas production using konjac waste through mesophilic two-phase anaerobic digestion

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dc.contributor.authorSugiarto, Yusron
dc.contributor.authorAhmad, Ary Mustofa
dc.contributor.authorSetyaningsih, Yeni Ika
dc.contributor.authorMaharsih, Inggit Kresna
dc.contributor.authorSunyoto, Nimas Mayang Sabrina
dc.contributor.authorSetyawan, Hendrix Yulis
dc.contributor.authorZhu, Mingming
dc.date.accessioned2024-09-17T15:43:01Z
dc.date.available2024-09-17T15:43:01Z
dc.date.freetoread2024-09-17
dc.date.issued2024-08-29
dc.date.pubOnline2024-08-29
dc.description.abstractPurpose: This study aimed to investigate the influence of biochar supplementation in the mesophilic two-phase anaerobic digestion process for konjac waste. Methods: Reactors with a working volume of 60 mL were utilised to incubate cultures containing biochar. In the first phase, the cultures were maintained at 32 °C and a pH of 5 to facilitate the production of hydrogen. In the second phase, the cultures were adjusted to 37 °C and a pH of 7 to promote methane production. The concentration of konjac flour waste varied between 0 and 500 g/L, while the ratio of biochar addition ranged from 0 to 25 g/L. Biogas production was measured daily using the volume displacement method, and the pH of the cultures was monitored both before and after the experiment. Results: The findings show that using biochar has a beneficial effect on biogas production from konjac flour waste. During the initial phase of the experiment, incorporating biochar with a concentration of 15 g/L led to substantial improvements, elevating the maximum H2 production rates by 9.6%. Furthermore, the addition of biochar led to an 84% increase in H2 yield during the initial phase. Similarly, in the second phase, introducing biochar with a concentration of 15 g/L resulted in a 22.2% increase in the maximum CH4 production rates and a 2.5 times increase in CH4 yield. Conclusions: Overall, this work confirms the beneficial effects of biochar on the H2 and CH4 production from konjac flour waste using the mesophilic two-phase anaerobic digestion method for sustainable energy.
dc.description.journalNameJournal of Biosystems Engineering
dc.description.sponsorshipPartial financial support for this research was received from the Institute of Research and Community Services Universitas Brawijaya (LPMM UB) and the Faculty of Agricultural Technology, Universitas Brawijaya.
dc.identifier.citationSugiarto Y, Ahmad AM, Setyaningsih YI, et al., (2024) Effect of biochar addition on biogas production using konjac waste through mesophilic two-phase anaerobic digestion. Journal of Biosystems Engineering, Available online 29 August 2024
dc.identifier.eissn2234-1862
dc.identifier.elementsID552648
dc.identifier.issn1738-1266
dc.identifier.urihttps://doi.org/10.1007/s42853-024-00232-1
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/22952
dc.languageEnglish
dc.language.isoen
dc.publisherSpringer Science and Business Media LLC
dc.publisher.urihttps://link.springer.com/article/10.1007/s42853-024-00232-1
dc.rightsAttribution 4.0 Internationalen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subject31 Biological Sciences
dc.subject41 Environmental Sciences
dc.subject3106 Industrial Biotechnology
dc.subject7 Affordable and Clean Energy
dc.titleEffect of biochar addition on biogas production using konjac waste through mesophilic two-phase anaerobic digestion
dc.typeArticle
dc.type.subtypeJournal Article
dcterms.dateAccepted2024-08-14

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