Trace element and temperature effects on microbial communities and links to biogas digester performance at high ammonia levels.

ABSTRACT:

Background

High levels of ammonia and the presence of sulphide have major impacts on microbial communities and are known to cause operating problems in anaerobic degradation of protein-rich material. Operating strategies that can improve process performance in such conditions have been reported. The microbiological impacts of these are not fully understood, but their determination could help identify important factors for balanced, efficient operation. This study investigated the correlations between microbial community structure, operating parameters and digester performance in high-ammonia conditions.

Method

Continuous anaerobic co-digestion of household waste and albumin was carried out in laboratory-scale digesters at high ammonia concentrations (0.5-0.9 g NH3/L). The di

SUBMITTER: Westerholm M 

PROVIDER: S-EPMC4578335 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature