Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64, 1279-1282
Published online 2016-08-30

On the Spent Coffee Grounds Biogas Production

Tomáš Vítěz, Tomáš Koutný, Martin Šotnar, Jan Chovanec

Department of Agricultural, Food and Environmental Engineering, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

Due to the strict legislation currently in use for landfilling, anaerobic digestion has a strong potential as an alternative treatment for biodegradable waste. Coffee is one of the most consumed beverages in the world and spent coffee grounds (SCG) are generated in a considerable amount as a processing waste during making the coffee beverage. Chemical composition of SCG, presence of polysaccharides, proteins, and minerals makes from the SCG substrates with high biotechnological value, which might be used as valuable input material in fermentation process. The methane production ranged from 0.271–0.325 m3/kg dry organic matter.


The research was financially supported by the Internal Grant Agency of Faculty of Agronomy at Mendel’s University in Brno – project IP 36/2015 and by Sixth Framework Programme of the European Community for research, technological development and demonstration activities (2007–2017), No. 7AMB14SK033 Control parameters research in the bionic systems for the safe energy production from biomass and waste.


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