Performance on a novel rotating bioreactor for dry anaerobic digestion: Efficiency and biological mechanism compared with wet fermentation

Xiaoli Pan, Yuxuan Wang, Haiyin Xie, Hui Wang, Lei Liu, Hongxia Du, Tadayuki Imanaka, Yasuo Igarashia and Feng Luo

Energy, 2022, vol. 254, issue PB

Abstract: To strengthen mass heat transfer in dry fermentation and avoid the high shear forces breaking microbial flora. A reactor is designed to rotate itself instead of mechanical stirring. Its performance was verified by comparing it with the common stirring of dry digestion and wet digestion. The results showed that the designed reactor could effectively overcome the existing problems of stirring dry digestion. The total solids removal rate was up to 68.74%, which was 18% higher than that of wet digestion. Acetic acid and propionic acid were the main volatile fatty acids in dry digestion, and acetic acid and butyric acid were higher in wet digestion. The high diversity of fermentation bacteria integrated with hydrotrophic methanogens in the designed dry reactor resulted in its better performance. The information provided will be useful to research the anaerobic treatment of solid municipal waste.

Keywords: Kitchen waste; Anaerobic digestion; Reactor; Methane; Microbial community (search for similar items in EconPapers)
Date: 2022
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://www.sciencedirect.com/science/article/pii/S036054422201307X
Full text for ScienceDirect subscribers only

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:254:y:2022:i:pb:s036054422201307x

DOI: 10.1016/j.energy.2022.124404

Access Statistics for this article

Energy is currently edited by Henrik Lund and Mark J. Kaiser

More articles in Energy from Elsevier
Bibliographic data for series maintained by Catherine Liu ().