標題: Dark fermentation production of volatile fatty acids from glucose with biochar amended biological consortium
作者: Lu, Jia-Hsun
Chen, Chuan
Huang, Chihpin
Zhuang, Huichuan
Leu, Shao-Yuan
Lee, Duu-Jong
環境工程研究所
Institute of Environmental Engineering
關鍵字: Biochar;Volatile fatty acids;DIET;Fermentative consortium;Property
公開日期: 1-五月-2020
摘要: Effects of adding biochars on dark fermentation production of volatile fatty acids (VFAs) from glucose were investigated. Nine biochars were synthesized and applied, together with an activated carbon, as the testing amendment to enhance preferable fermentation. Biochars were porous materials with internal pores and excess surface functional groups, which would lead to enrichment of acetate over butyrate in the VFA production. Biochar coconut and biochar longan shell showed excess functional groups and high bulk internal crystallinity, presented 109.6% and 71.8% enrichments of acetate production, respectively. The syntrophic growth of fermentative bacteria and homoacetogens on biochar surfaces via direct interspecies electron transfer mechanism was assumed to interpret the noted enhanced acetate production. The excess functional groups on biochar surface to facilitate biofilm development and the high crystallinity of biochar bulk to ease electron transfer favored the production of acetate.
URI: http://dx.doi.org/10.1016/j.biortech.2020.122921
http://hdl.handle.net/11536/153950
ISSN: 0960-8524
DOI: 10.1016/j.biortech.2020.122921
期刊: BIORESOURCE TECHNOLOGY
Volume: 303
起始頁: 0
結束頁: 0
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