文章基本信息

标题：Value Proposition of Untapped Wet Wastes: Carboxylic Acid Production through Anaerobic Digestion
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作者：Arpit H. Bhatt ; Zhiyong (Jason) Ren ; Ling Tao 等
期刊名称：iScience
印刷版ISSN：2589-0042
出版年度：2020
卷号：23
期号：6
页码：1-29
DOI：10.1016/j.isci.2020.101221
语种：English
出版社：Elsevier
摘要：Although traditional anaerobic digestion (AD) process to produce methane-rich biogas from wet waste is deep-rooted, high carbon footprint and its low value as compared with other renewable sources demand advanced strategies to avoid its production. An emerging conversion pathway to arrest methanogenesis for producing value-added fuels and chemicals instead of biogas is sought as a sustainable alternative. This research provides a comprehensive analysis on current technology development, process challenges, applications, and economics for producing high-value short-chain carboxylic acids from AD of wet wastes. We show that (1) the theoretical energy yields of acids equal or exceed biogas, and (2) the cost of these acids is competitive with those produced from chemical markets, making this economically viable for mass production. With global abundance of wet waste feedstocks, this process of short-chain acid production provides a promising alternative to conventional biogas production technology, while achieving waste management and carbon mitigation goals.Graphical AbstractDisplay OmittedEnvironmental Chemistry; Energy Resources; Energy Sustainability.