Unionized Acetate Degradation at 45ºC Anaerobic Digestion: Kinetics and Inhibition

Inhibition of Thermophilic Anaerobic Digestion of Waste Food by Long Chain Fatty Acids and Propionate

Anaerobic digestion of brewery spent grain in a semi-continuous bioreactor: inhibition by phenolic degradation products.

In this study anaerobic digestion of selected lignocellulosic substrate, namely brewery spent grain (BSG), was studied. In order to facilitate anaerobic digestion several types of pretreatment methods were tested such as: mechanical, chemical (alkali and acid) and thermo-chemical. The anaerobic digestion experiments were carried out in a semi-continuous stirred bioreactors with the organic load...

Kinetics of inactivation of indicator pathogens during thermophilic anaerobic digestion.

Thermophilic anaerobic sludge digestion is a promising process to divert waste to beneficial use, but an important question is the required temperature and holding time to achieve a given degree of pathogen inactivation. In this study, the kinetics of inactivation of Ascaris suum and vaccine strain poliovirus type 1 (PVS-1), selected as indicators for helminth ova and enteric viruses respective...

Background on Anaerobic Digestion at the Farm

Introduction Over the past several years there has been significant interest in adopting on-farm manure anaerobic digesters in Ontario. The potential for sustainable energy production, while reducing greenhouse gas (GHG) emissions, mitigating pathogens and odours, and increasing ionized nutrients in the digestate, has made anaerobic digestion an attractive option for manure management. The biog...

Carbon isotope fractionation during the anaerobic degradation of acetate

In methanogenic environments Methanosarcinaceae are beside Methanosaetaceae the only acetate-consuming family of archaea and thus important contributors to the formation of the greenhouse gases methane and carbon dioxide. In this study, the carbon isotope fractionation during this process was determined for two species of the Methanosarcinaceae family, M. barkeri and M. acetivorans. The calcula...