Please use this identifier to cite or link to this item: https://doi.org/10.1038/s41598-017-01408-w
Title: Three-stage anaerobic co-digestion of food waste and horse manure
Authors: Zhang, J 
Loh, K.-C 
Lee, J 
Wang, C.-H 
Dai, Y
Wah Tong, Y 
Keywords: anaerobic growth
animal
archaeon
bacterium
bioreactor
biota
classification
food control
growth, development and aging
horse
manure
metabolism
microbiology
procedures
waste disposal
Anaerobiosis
Animals
Archaea
Bacteria
Bioreactors
Biota
Food Microbiology
Horses
Manure
Refuse Disposal
Issue Date: 2017
Publisher: Nature Publishing Group
Citation: Zhang, J, Loh, K.-C, Lee, J, Wang, C.-H, Dai, Y, Wah Tong, Y (2017). Three-stage anaerobic co-digestion of food waste and horse manure. Scientific Reports 7 (1) : 1269. ScholarBank@NUS Repository. https://doi.org/10.1038/s41598-017-01408-w
Abstract: A novel compact three-stage anaerobic digester (HM3) was developed to combine the advantages of high solids anaerobic digestion (AD) and wet AD for co-digestion of food waste and horse manure. By having three separate chambers in the three-stage anaerobic digester, three different functional zones were created for high-solids hydrolysis, acidogenesis and wet methanogenesis. The results showed that the functionalized partitioning in HM3 significantly accelerated the solubilization of solid organic matters and the formation of volatile fatty acids, resulting in an increase of 11~23% in methane yield. VS reduction in the HM3 presents the highest rate of 71% compared to the controls. Pyrosequencing analysis indicated that different microbial communities in terms of hydrolyzing bacteria, acidogenic bacteria and methanogenic archaea were selectively enriched in the three separate chambers of the HM3. Moreover, the abundance of the methanogenic archaea was increased by 0.8~1.28 times compared to controls. © 2017 The Author(s).
Source Title: Scientific Reports
URI: https://scholarbank.nus.edu.sg/handle/10635/174413
ISSN: 2045-2322
DOI: 10.1038/s41598-017-01408-w
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