<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The aim of this study was to evaluate the effect of an enzymatic mixture on the increase of biogas production from lignocellulosic materials as rapeseed straw, maize waste, and wheat straw. For efficient application of the enzymatic mixture, conditions of its use were optimized regarding 50 °C, pH 7 and an enzyme dose of 0.25 % w/v. Biogas potential test confirmed positive effect of the enzymatic mixture on anaerobic digestion of already thermally and alkali pre-treated lignocellulosic materials, as significantly higher biogas production was observed after the enzymatic mixture addition for all monitored substrates. Addition of the enzymatic mixture to the most used substrate at biogas plants — maize silage, had also positive effect on biogas production during the biogas potential test. This fact was not proven during long-term operations of the reactors as the values of total cumulative biogas productions for the whole monitored period from reactors for anaerobic digestion of maize silage with and without addition of enzymatic mixture did not differ significantly.</p>
</abstract>

The aim of this study was to evaluate the effect of an enzymatic mixture on the increase of biogas production from lignocellulosic materials as rapeseed straw, maize waste, and wheat straw. For efficient application of the enzymatic mixture, conditions of its use were optimized regarding 50 °C, pH 7 and an enzyme dose of 0.25 % w/v. Biogas potential test confirmed positive effect of the enzymatic mixture on anaerobic digestion of already thermally and alkali pre-treated lignocellulosic materials, as significantly higher biogas production was observed after the enzymatic mixture addition for all monitored substrates. Addition of the enzymatic mixture to the most used substrate at biogas plants — maize silage, had also positive effect on biogas production during the biogas potential test. This fact was not proven during long-term operations of the reactors as the values of total cumulative biogas productions for the whole monitored period from reactors for anaerobic digestion of maize silage with and without addition of enzymatic mixture did not differ significantly.

Pre-treatment of lignocellulosic materials by enzymatic mixture to enhance biogas production

Faculty of Chemical and Food Technology, Department of Environmental Engineering

Acta Chimica Slovaca

This work is licensed under the Creative Commons Attribution 4.0 International License.

The aim of this study was to evaluate the effect of an enzymatic mixture on the increase of biogas production from lignocellulosic materials as rapeseed straw,...

Pre-treatment of lignocellulosic materials by enzymatic mixture to enhance biogas production

Published Online: May 16, 2022

Page range: 36 - 43

DOI: https://doi.org/10.2478/acs-2022-0005

Keywords
anaerobic digestion, biomass, long-term operation, maize silage, methane

© 2022 Barbora Jankovičová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Pre-treatment of lignocellulosic materials by enzymatic mixture to enhance biogas production

Published Online: May 16, 2022

Page range: 36 - 43

DOI: https://doi.org/10.2478/acs-2022-0005

Keywordsanaerobic digestion, biomass, long-term operation, maize silage, methane

© 2022 Barbora Jankovičová et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
anaerobic digestion, biomass, long-term operation, maize silage, methane