Original scientific paper
https://doi.org/10.5513/JCEA01/26.4.5036
Enhancing biogas production from perennial energy crops through bioaugmentation with perlite immobilised microbial consortia
Karlo ŠPELIĆ
; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Tomislav IVANKOVIĆ
; University of Zagreb Faculty of Science, Roosveletov trg 6, 10000 Zagreb, Croatia
*
Gabrijel BARČIĆ
; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Ivana TOMIĆ
; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
Le ZHANG
; Biomass Energy Engineering Research Centre, Department of Resources and Environment, School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China of Zagreb Faculty of Science, Roosveletov trg 6, 10000 Zagreb, Croatia
Sabine ROLLAND du ROSCOAT
; Université Grenoble Alpes, Laboratoire 3SR, CNRS UMR 5521, Grenoble INP, 38000 Grenoble, France
Vanja JURIŠIĆ
; University of Zagreb Faculty of Agriculture, Svetošimunska cesta 25, 10000 Zagreb, Croatia
* Corresponding author.
Abstract
With increasing concerns over energy security and environmental sustainability, the search for sustainable alternatives to conventional biogas feedstock has become increasingly important. As part of efforts to reduce dependence on maize silage, perennial energy crops such as Miscanthus x giganteus, Arundo donax, and Panicum virgatum are emerging as promising candidates to meet the increasing demand for biogas production. In this study, these plants were subjected to anaerobic digestion in bioaugmented bioreactors, and the biogas production potential (BPP) was monitored during a 26-day batch anaerobic digestion process. The results showed that bioaugmentation significantly increased the BPP in certain cases. The addition of M. giganteus to bioaugmented reactors increased BPP by 36%, whereas reactors with P. virgatum showed a 73% increase in BPP. Results indicate that bioaugmentation of reactors fed with alternative energy crops represents a viable and sustainable solution to enhance biogas production.
Keywords
bioaugmentation; biogas; perennial energy crops; biodegradation; anaerobic digestion; sustainable bioenergy
Hrčak ID:
342059
URI
Publication date:
19.12.2025.
Visits: 449 *