Cristin-resultat-ID: 1965836
Sist endret: 7. desember 2021, 23:49
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Anaerobic digestion affecting nitrous oxide and methane emissions from the composting process

Bidragsytere:
  • Maria Dietrich
  • Monica Fongen og
  • Bente Føreid

Tidsskrift

Bioresource Technology Reports
ISSN 2589-014X
e-ISSN 2589-014X
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Volum: 15
Artikkelnummer: 100752
Open Access

Importkilder

Scopus-ID: 2-s2.0-85109070201

Beskrivelse Beskrivelse

Tittel

Anaerobic digestion affecting nitrous oxide and methane emissions from the composting process

Sammendrag

Composting and anaerobic digestion are the most common ways to treat organic residues. Sometimes the organic rest after anaerobic digestion is also composted. In this study we investigated greenhouse gas emissions from composting raw food waste compared to composting solid digestate of food waste. Cumulative methane emissions over 3 weeks were found to be almost 12 times higher from composting digested food waste than from raw food waste suggesting that the microbial community transferred from the anaerobic digestion to the compost process enhanced these emissions. Cumulative nitrous oxide emissions were also higher when composting solid digestate was compared to composting raw food waste, but the global warming potential was mostly driven by the impact of methane emissions. In conclusion, methane production during digestate composting can be high, therefore eliminating methane producing microbes in digestate before composting could be a promising way to reduce greenhouse gas emissions.

Bidragsytere

Maria Dietrich

  • Tilknyttet:
    Forfatter
    ved Divisjon for miljø og naturressurser ved Norsk institutt for bioøkonomi

Monica Fongen

  • Tilknyttet:
    Forfatter
    ved Divisjon for skog og utmark ved Norsk institutt for bioøkonomi

Bente Føreid

  • Tilknyttet:
    Forfatter
    ved Divisjon for miljø og naturressurser ved Norsk institutt for bioøkonomi
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