Volume: 2, 2023
2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: T040
DOI: https://doi.org/10.24326/ICDSUPL2.T040
Published online: 19 April 2023
ICDSUPL, 2, T040 (2023)
Management and valorization of digestate from selected Poland biogas plants
Mateusz Nowak1*, Wojciech Czekała1, Wiktor Bojarski1
1 Department of Biosystems Engineering, Faculty of Environmental and Mechanical Engineering, Poznań University of Life Sciences, Wojska Polskiego, 50, 60-637, Poznań, Poland
* Corresponding author: mateusz.nowak@up.poznan.pl
Abstract
he anaerobic digestion process is used to produce renewable energy in the form of biogas. In addition to the main by-product, the second product – digestate is created. The increase in popularity of biogas plants is due to the large amounts residues generation that need to be properly managed. Process of digestate management is fundamental in leading Poland’s circular economy. In the literature, the basic direction of digestate management is use as fertilizer purposes. In the last few years, interest in the technology of processing and management of digestate has increased significantly. The processes of management and valorization of the digestate allow to improve the economic efficiency of selected installations. The study aims to review and discuss methods of processing and valorization raw digestate at selected installations in Poland. An analysis of the available literature related to digestate management with a focus on separation methods was conducted. Among the available solutions, the most popular technology for digestate separation is a screw press, which has the advantage of low operating costs. In addition, some of the plants reuse the separated liquid fraction in the anaerobic digestion process. Regardless of the technology chosen, biogas plants operate in a circular economy and optimize production processes becoming a necessity. Moreover, the separation of the digestate into fractions makes it possible to create new directions for its use. It becomes necessary to develop further research on management and valorization of the digestate.
How to cite
M. Nowak, W. Czekała, W. Bojarski, 2023. Management and valorization of digestate from selected Poland biogas plants. In: 2nd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL2.T040