Unveiling the synergy of Chlorella sp. and cattle manure co-digestion under high feeding load

Rui Chen, Jialiang Zhou, Xin Zheng, Lingwei Jiang and Na Duan

Energy, 2023, vol. 270, issue C

Abstract: The synergy in anaerobic co-digestion (AcoD) of cattle manure (CM) and Chlorella sp. (Ch) Under high feeding loads (50 g VS/L) was investigated with different mixing gradients in terms of organic constitute, process parameters, and microbial community structure. AcoD enhanced the methane yield of CM by 9.3%–22.8% and Ch by 3.9%–16.7%, compared with their mono-digestion. The suitable protein/carbohydrates ratio was the important reason for having such a synergetic effect between carbohydrates-rich and protein-rich feedstock. AcoD of CM and Ch at the ratio of 8:2 showed a high methane yield enhanced, the fastest methane production rate, and a high relative abundance of Methanosaeta, which may be an available matching strategy for further application. The relative abundance of acetoclastic methanogen decreased with the increase of total ammonia nitrogen (TAN), and the fast methane production rate is associated with the syntrophism and high relative abundance of Syner-01 and Methanosaeta.

Keywords: Co-digestion; Cattle manure; Microalgae chlorella; Synergistic effect; Organic component (search for similar items in EconPapers)
Date: 2023
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/S0360544223002712
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:270:y:2023:i:c:s0360544223002712

DOI: 10.1016/j.energy.2023.126877

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 ().