Biogas Potential of Food Waste-Recycling Wastewater after Oil-Water Separationopen access
- Authors
- Han, Gyuseong; Shin, Juhee; Lee, Myoung-Eun; Shin, Seung Gu
- Issue Date
- Sep-2024
- Publisher
- Multidisciplinary Digital Publishing Institute (MDPI)
- Keywords
- anaerobic digestion; food waste leachate; municipal sewage; next-generation sequencing; microbial community
- Citation
- Energies, v.17, no.17
- Indexed
- SCIE
SCOPUS
- Journal Title
- Energies
- Volume
- 17
- Number
- 17
- URI
- https://scholarworks.gnu.ac.kr/handle/sw.gnu/74092
- DOI
- 10.3390/en17174428
- ISSN
- 1996-1073
- Abstract
- This study explores the potential of food waste-recycling wastewater (FRW) for biogas production, emphasizing oil-water separation before anaerobic digestion. Three FRW samples were analyzed: non-treated (FRW), water-oil separated (FRW_sep), and mixed with domestic sewage (FRW_mix). Physicochemical characterization showed a 26% reduction in crude lipid content after oil-water separation. The biochemical methane potential (BMP) tests revealed similar methane yields for FRW_sep and FRW_mix compared to non-treated FRW. Microbial analysis identified Firmicutes and Methanoculleus as active populations. Energy balance suggests that combining biodiesel and biogas production can enhance net energy recovery. This research indicates that oil-water separation in FRW treatment can optimize anaerobic digestion, contributing to sustainable waste management and renewable energy generation.
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