Influence of the Parameters of Used Biochar on the Dark Fermentation Process

Kamil Kozłowski (), Jacek Dach, Wojciech Czekała, Krystyna Malińska, Kacper Świechowski, Jakub Pulka and Andrzej Lewicki
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Kamil Kozłowski: Department of Biosystems Engineering, Poznan University of Life Sciences, Wojska Polskiego 50, 60-637 Poznan, Poland
Jacek Dach: Department of Biosystems Engineering, Poznan University of Life Sciences, Wojska Polskiego 50, 60-637 Poznan, Poland
Wojciech Czekała: Department of Biosystems Engineering, Poznan University of Life Sciences, Wojska Polskiego 50, 60-637 Poznan, Poland
Krystyna Malińska: Institute of Environmental Engineering, Czestochowa University of Technology, Brzeznicka 60A, 42-200 Czestochowa, Poland
Kacper Świechowski: Department of Applied Bioeconomy, Wroclaw University of Environmental and Life Sciences, Chełmońskiego 37a, 51-630 Wroclaw, Poland
Jakub Pulka: Department of Biosystems Engineering, Poznan University of Life Sciences, Wojska Polskiego 50, 60-637 Poznan, Poland
Andrzej Lewicki: Department of Biosystems Engineering, Poznan University of Life Sciences, Wojska Polskiego 50, 60-637 Poznan, Poland

Energies, 2023, vol. 16, issue 22, 1-17

Abstract: The aim of the work was to analyze the impact of biochar produced under various production conditions on the course of the dark (hydrogen) fermentation process. A series of experiments were planned, in which the starting material was digestate from a functioning agricultural biogas plant. Changes in the physicochemical properties and microstructure of biochar obtained in the manufacturing process with different parameters were also analyzed. Another issue analyzed was the size and dynamics of the gas production during dark fermentation with the use of various types of auxiliary material. This work showed that increasing the temperature and holding time during the production of biochar from digestion pulp improved the dynamics of biohydrogen production during the process of dark fermentation. The results of this research can be used in industrial research to optimize the process of biohydrogen production using biochar.

Keywords: biochar; dark fermentation; hydrogen production; biogas production (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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