Utilization of Continuous Anaerobic Digesters for Processing Cattle Dung and Cabbage (<i>Brassica oleracea</i>) Waste

The purpose of this work is to explore the addition of cabbage (<i>Brassica oleracea</i>) waste interspersed with cattle dung into a continuous anaerobic digester that normally uses cattle dung as a substrate. In this work, a 200-L continuous anaerobic digester was operated to conduct th...

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Bibliographic Details
Main Authors: Tjokorda Sari Nindhia, I Gusti Nyoman Gde Bidura, I Putu Sampurna, Tjokorda Gde Tirta Nindhia
Format: Article
Language:English
Published: MDPI AG 2025-01-01
Series:Fermentation
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Online Access:https://www.mdpi.com/2311-5637/11/2/50
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Summary:The purpose of this work is to explore the addition of cabbage (<i>Brassica oleracea</i>) waste interspersed with cattle dung into a continuous anaerobic digester that normally uses cattle dung as a substrate. In this work, a 200-L continuous anaerobic digester was operated to conduct the research. The digester was filled fully with a mixture of cattle dung and water (50%:50%). The digester was then operated by continuously adding a 5-L mixture of cattle dung and water (50%:50%) every day for 1 month. Subsequently, the digester was operated for 1 month with an additional 5-L mixture of cabbage waste and water (50%:50%) for odd-numbered days and a mixture of cattle dung and water (50%:50%) for even-numbered days. The methane composition was higher (in the range of 41–78%) with only the cattle dung in the system. With the addition of cabbage waste, the methane composition became lower (in the range of 20–60%).
ISSN:2311-5637