Anaerobic Digestion of High-Solid Chicken Manure (CM) at Different Temperature: Intestinal Microbiome Efficiency, Inhibition, and Microbial Community Evolution DOI Creative Commons
Xuyu Chen, Qigui Niu, Jingyi Li

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(4), P. 724 - 724

Published: March 24, 2025

Anaerobic digestion (AD) of high-solid mono-chicken manure (CM) holds great promise for resource utilization. However, the effects substrate overload (high-solid mixture inside reactor) on AD performance at various temperatures are still unclear, moreover, metabolic processes with and without inoculation also seldom reported. In this study, three key impact factors different (4 °C, 35 55 °C 75 °C), total solids (TS) inside, were conducted to comprehensively explore process variation. EEM-FRI results revealed that high temps boost coenzyme F420, while TS predominately driver microbial production. High temperature synthetically result in free ammonia (FA) (>600 mg/L) associated volatile fatty acid (FVFA) (>450 mg/L), reducing CH4 production but increasing VFAs accumulation (12 g/L °C). Notably, intestinal microbiota alone even achieved 11 VFA. The cross-feeding symbiosis between fermentative bacteria (Caldicoprobacter, Bacteroidetes, Tepidimicrobium) hydrogenotrophic Methanobacterium enhanced (68 mL/gVS Moreover, reduced diversity made heat-resistant hydrolytic dominant. This study precisely analyzes acidification efficiency CM digestion, providing a crucial scientific basis optimizing utilization waste.

Language: Английский

Anaerobic Digestion of High-Solid Chicken Manure (CM) at Different Temperature: Intestinal Microbiome Efficiency, Inhibition, and Microbial Community Evolution DOI Creative Commons
Xuyu Chen, Qigui Niu, Jingyi Li

et al.

Microorganisms, Journal Year: 2025, Volume and Issue: 13(4), P. 724 - 724

Published: March 24, 2025

Anaerobic digestion (AD) of high-solid mono-chicken manure (CM) holds great promise for resource utilization. However, the effects substrate overload (high-solid mixture inside reactor) on AD performance at various temperatures are still unclear, moreover, metabolic processes with and without inoculation also seldom reported. In this study, three key impact factors different (4 °C, 35 55 °C 75 °C), total solids (TS) inside, were conducted to comprehensively explore process variation. EEM-FRI results revealed that high temps boost coenzyme F420, while TS predominately driver microbial production. High temperature synthetically result in free ammonia (FA) (>600 mg/L) associated volatile fatty acid (FVFA) (>450 mg/L), reducing CH4 production but increasing VFAs accumulation (12 g/L °C). Notably, intestinal microbiota alone even achieved 11 VFA. The cross-feeding symbiosis between fermentative bacteria (Caldicoprobacter, Bacteroidetes, Tepidimicrobium) hydrogenotrophic Methanobacterium enhanced (68 mL/gVS Moreover, reduced diversity made heat-resistant hydrolytic dominant. This study precisely analyzes acidification efficiency CM digestion, providing a crucial scientific basis optimizing utilization waste.

Language: Английский

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