Applying Side-Stream Gas Recirculation to Promote Anaerobic Digestion of Food Waste under Ammonia Stress: Overlooked Impact of Gaseous Atmospheres on Microorganisms

Water Research, Год журнала: 2025, Номер unknown, С. 123571 - 123571

Опубликована: Март 1, 2025

Язык: Английский

Enhancing Methane Production in Anaerobic Digestion of Food Waste Using Co-Pyrolysis Biochar Derived from Digestate and Rice Straw

Molecules, Год журнала: 2025, Номер 30(8), С. 1766 - 1766

Опубликована: Апрель 15, 2025

Anaerobic digestion (AD) is a preferred method for food waste (FW) treatment due to its sustainability and potential production of renewable bioenergy. However, the accumulation volatile fatty acids (VFAs) ammonia often destabilizes AD process, managing digestate byproduct poses additional challenges. This study investigates use co-pyrolysis biochar synthesized from rice straw (DRB) enhance methane efficiency. DRB addition increased cumulative yield by 37.1%, improved VFA conversion efficiency, achieved 42.3% higher NH3-N-removal rate compared control group. The COD-removal was 68.7% throughout process. Microbial analysis revealed that selectively enriched Fastidiosipila Methanosarcina, promoting direct interspecies electron transfer (DIET) yield. These findings highlight DRB’s efficiency support closed-loop resource utilization.

Язык: Английский

Struvite crystallization eliminates ammonia inhibition in thermal hydrolysis of waste activated sludge: Role of Mg/P ratio

Journal of Water Process Engineering, Год журнала: 2024, Номер 68, С. 106349 - 106349

Опубликована: Окт. 20, 2024

Язык: Английский