https://doi.org/10.17113/ftb.59.04.21.7300

Supplement

Biogas Production Systems and Upgrading Technologies: A Review 

Martina Andlar¹, Halina Belskaya², Galina Morzak², Mirela Ivančić Šantek¹, Tonči Rezić¹, Vlatka Petravić Tominac¹ and Božidar Šantek^1*

¹University of Zagreb, Faculty of Food Technology and Biotechnology, Pierottijeva 6, HR-10000 Zagreb, Croatia

²Belarussian National Technical University, Mining Engineering and Engineering Ecology Faculty, Nezavisimosti Ave. 65, BY-220013 Minsk, Belarus

Article history:

Received: 30 April 2021

Accepted: 13 October 2021

Key words:

aanaerobic digestion, biogas production, different anaerobic bioreactor systems, biogas purification and upgrading technologies, digestate

Summary:

The underutilized biomass and different organic waste streams are nowadays in the focus of research for renewable energy production due to the effusive use of fossil fuels and greenhouse gas emission. In addition, one of the major environmental problems is also a constant increase of the number of organic waste streams. In a lot of countries, sustainable waste management, including waste prevention and reduction, has become a priority as a means to reduce pollution and greenhouse gas emission. Application of biogas technology is one of the promising methods to provide solutions for both actual energy-related and environmental problems. This review aims to present conventional and novel biogas production systems, as well as purification and upgrading technologies, nowadays applicable on a large scale, with a special focus on the CO₂ and H₂S removal. It also gives an overview of feedstock and the parameters important for biogas production, together with digestate utilization and application of molecular biology in order to improve the biogas production.