Related Experiment Video
Updated: May 28, 2026

A Novel Bioreactor for High Density Cultivation of Diverse Microbial Communities
Published on: December 25, 2015
Aerobic, thermophilic, semi-continuous treatment of cattle slurry with whey and jam
Mohammed Mohaibes1, Helena Vuorinen, Helvi Heinonen-Tanski
1Department of Environmental Science, University of Eastern Finland, P.O. Box 1627, FIN-70211 Kuopio, Finland. mohammed.mohaibes@uef.fi
Abstract:
Aerobic thermophilic treatment (ATT) of cattle slurry and industrial food waste (whey and jam) was conducted semi-continuously, with the aim of developing the ATT process. We could improve the final products in terms of hygiene, environmental effects and heat production. In addition we tried to solve the foaming problem mechanically. The trial was done by using a farm-scale bioreactor with a total volume of 12 m3 and a theoretical retention time of some 15 days. Temperature increased to 55 degrees C at the end of the trial. The process could be an efficient method for the control of foam. Using the waste food (whey and jam) improved the process.
Related Concept Videos
Biological Treatment of Effluent and Waste Water
Microbial Wastewater Treatment
Microbes in Food Production
Production of Alcohol
Bioreactor Design and Operational System
Production of Organic Acids

