Related Experiment Video
Updated: Aug 10, 2026

Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation
Published on: July 13, 2012
Biomass stabilization in the anaerobic digestion of wastewater sludges
C Arnaiz1, J C Gutierrez, J Lebrato
1Departamento de Ingeniería Química y Ambiental, Escuela Universitaria Politécnica, Universidad de Sevilla, Virgen de Africa 7, 41011 Sevilla, Spain. mcarnaiz@us.es
Abstract:
Sludge stabilization processes include both volatile solid destruction and biomass stabilization. Traditionally, both processes have been considered together, in such a way that, when volatile solid destruction is achieved, the biomass is considered stabilized. In this study, volatile solids reduction and biomass stabilization in the anaerobic digestion of primary, secondary and mixed sludges from municipal wastewater treatment plants were researched in batch cultures by measurements of suspended solids and suspended lipid-phosphate. The estimated kinetic constants were higher in all sludge types tested for the biomass stabilization process, indicating that volatile solids destruction and biomass stabilization are not parallel processes, since the latter one is reached before the former.
More Related Videos
Related Concept Videos
Bioremediation
Microbes and Methanogenesis
Microbial Bioremediation of Hydrocarbons
Microbial Wastewater Treatment
Biological Treatment of Effluent and Waste Water
Biofuels

