Higher anaerobic digester performance by the strategical increase in the feeding rate of cow manure in laboratory continuous stirred tank reactor.

ABSTRACT: Improper management of dairy cow manure poses a major risk of environmental pollution. In contrast, anaerobic digestion provides a sustainable pathway by transforming manure into renewable biogas while reducing environmental burdens compared with conventional handling methods. This study examined the operational adaptation and performance of a continuous stirred-tank anaerobic digester fed with dairy cow manure, where the daily organic loading rate (kgVS/m³ reactor volume) was gradually increased to maximize biogas generation. The loading was progressively raised until clear signs of process instability appeared. The experiment was conducted over 98 days under mesophilic conditions, with pH maintained between 7.10 and 7.40. Initially, the digesters were supplied with 20 g of fresh manure p

SUBMITTER: Negahban V 

PROVIDER: S-EPMC12533837 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature