Mesophilic versus thermophilic anaerobic digestion of cattle manure: methane productivity and microbial ecology.

ABSTRACT: In this study, productivity and physicochemical and microbiological (454 sequencing) parameters, as well as environmental criteria, were investigated in anaerobic reactors to contribute to the ongoing debate about the optimal temperature range for treating animal manure, and expand the general knowledge on the relation between microbiological and physicochemical process indicators. For this purpose, two reactor sizes were used (10 m(3) and 16 l), in which two temperature conditions (35°C and 50°C) were tested. In addition, the effect of the hydraulic retention time was evaluated (16 versus 20 days). Thermophilic anaerobic digestion showed higher organic matter degradation (especially fiber), higher pH and higher methane (CH₄) yield, as well as better percentage of ultimate CH₄ yield retrie

SUBMITTER: Moset V 

PROVIDER: S-EPMC4554467 | biostudies-literature | 2015 Sep

REPOSITORIES: biostudies-literature