Stimulation of Batch Mesophilic Anaerobic Digestion by Cellulose- and Polysaccharide-Derived Polymers in Landfill Leachates

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dc.contributor.authorMuter, Olga
dc.contributor.authorGudrā, Dita
dc.contributor.authorŽorža, Laura
dc.contributor.authorSelga, Tūrs
dc.contributor.authorRoga, Ance
dc.contributor.authorSkinderskis, Edmunds
dc.contributor.authorEismonts, Uģis
dc.contributor.authorVonda, Kārlis
dc.contributor.authorKalniņa, Ineta
dc.contributor.authorFridmanis, Dāvids
dc.contributor.authorGrīnbergs, Andrejs
dc.date.accessioned2024-11-22T10:45:01Z
dc.date.available2024-11-22T10:45:01Z
dc.date.issued2024-11
dc.descriptionPublisher Copyright: © 2024 by the authors.
dc.description.abstractThe fate of biobased and biodegradable cellulose-derived plastics in landfills represents an important topic from economic and environmental points of view. Anaerobic digestion is a cost-effective waste-to-energy technology. The behaviour of six polymer types—that is, cellulose (C), cellulose acetate (CA), viscose (V), nanocellulose (NC), acetate textile (AT), and heteropolysaccharide pectin (P)—was studied under anaerobic batch mesophilic conditions in a landfill leachate for 147 days. The cumulative biogas production was as follows: C>V=CA>>AT>>NC=P. Metagenomic analysis revealed notable variations in the proportion of bacterial and archaeal domains with the highest archaeal abundance in the presence of CA (80.2%) and C (78.5%). At the end of digestion, cellulolytic, hydrolytic, and dehydrogenase activities were measured in the intact samples, as well as the liquid and solid fractions, under aerobic and anaerobic conditions. Cellulolytic activity in P was detected only in the pellet, while in NC, activity was mostly in the supernatant under both aerobic and anaerobic conditions. Scanning electron microscopy and confocal scanning laser microscopy showed a defragmentation and degradation of polymeric substrates as well as microbial colonisation. Based on the results, landfill leachate is appropriate for the anaerobic biodegradation of cellulose-derived polymers; however, the process is polymer specific.en
dc.description.statusPeer reviewed
dc.format.extent4720626
dc.identifier.citationMuter, O, Gudrā, D, Žorža, L, Selga, T, Roga, A, Skinderskis, E, Eismonts, U, Vonda, K, Kalniņa, I, Fridmanis, D & Grīnbergs, A 2024, 'Stimulation of Batch Mesophilic Anaerobic Digestion by Cellulose- and Polysaccharide-Derived Polymers in Landfill Leachates', Energies, vol. 17, no. 21, 5384. https://doi.org/10.3390/en17215384
dc.identifier.doi10.3390/en17215384
dc.identifier.issn1996-1073
dc.identifier.urihttps://dspace.rsu.lv/jspui/handle/123456789/16913
dc.identifier.urlhttp://www.scopus.com/inward/record.url?scp=85208586842&partnerID=8YFLogxK
dc.language.isoeng
dc.relation.ispartofEnergies
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectbiogas
dc.subjectcellulase
dc.subjectcellulose acetate
dc.subjectlandfill leachate
dc.subjectscanning electron microscopy
dc.subjectshotgun sequencing
dc.subjectviscose
dc.subject1.5 Earth and related Environmental sciences
dc.subject2.2 Electrical engineering, Electronic engineering, Information engineering
dc.subject2.8 Environmental biotechnology
dc.subject1.1. Scientific article indexed in Web of Science and/or Scopus database
dc.subjectRenewable Energy, Sustainability and the Environment
dc.subjectFuel Technology
dc.subjectEngineering (miscellaneous)
dc.subjectEnergy Engineering and Power Technology
dc.subjectEnergy (miscellaneous)
dc.subjectControl and Optimization
dc.subjectElectrical and Electronic Engineering
dc.subjectSDG 7 - Affordable and Clean Energy
dc.titleStimulation of Batch Mesophilic Anaerobic Digestion by Cellulose- and Polysaccharide-Derived Polymers in Landfill Leachatesen
dc.type/dk/atira/pure/researchoutput/researchoutputtypes/contributiontojournal/article

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