Cristin-resultat-ID: 1567884
Sist endret: 11. mai 2018 10:54
NVI-rapporteringsår: 2018
Resultat
Vitenskapelig artikkel
2018

Biotransformation in water and soil of nitrosamines and nitramines potentially generated from amine-based CO2 capture technology

Bidragsytere:
  • Odd Gunnar Brakstad
  • Lisbet Sørensen
  • Kolbjørn Zahlsen
  • Kristin Bonaunet
  • Astrid Hyldbakk og
  • Andy Booth

Tidsskrift

International Journal of Greenhouse Gas Control
ISSN 1750-5836
e-ISSN 1878-0148
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2018
Publisert online: 2018
Trykket: 2018
Volum: 70
Sider: 157 - 163
Open Access

Importkilder

Scopus-ID: 2-s2.0-85044444413

Klassifisering

Vitenskapsdisipliner

Miljøteknologi

Beskrivelse Beskrivelse

Tittel

Biotransformation in water and soil of nitrosamines and nitramines potentially generated from amine-based CO2 capture technology

Sammendrag

Nitrosamines (NSAs) and nitramines (NAs) are identified as possible degradation products from amine-based post-combustion CO2-capture (PCCC). Selected NSAs and NAs were subjected to aerobic and anaerobic biodegradation studies. In a screening study with 20 μg/L NSAs and NAs at 20 °C, only NSAs and NAs containing hydroxyl groups (alkanol compounds) exhibited aerobic biotransformation >10% after incubation in 28 days. Extending the biodegradation period to 56 days resulted in ≥80% biotransformation of the examined alkanol NSAs and NAs at 20 °C. Biotransformation (20 °C; 56 days) of the NSA NDELA at different concentrations (1–100 μg/L) did not differ significantly, but both water sources and temperatures affected biotransformation of the tested compounds. Anaerobic biotransformation (20 °C; 56 days) occurred rapidly  with alkanol NSAs and NAs, but not with alkyl compounds. Interestingly, 1st order rate coefficients and half-lives indicated comparable or even faster anaerobic than aerobic biotransformation at the same temperature. Predictions of biotransformation pathways suggested that the -OH substituent of alkanol NSAs and NAs was more susceptible to degradation than nitroso- and nitro-substituents.

Bidragsytere

Odd Gunnar Brakstad

  • Tilknyttet:
    Forfatter
    ved Miljø og nye ressurser ved SINTEF Ocean

Lisbet Sørensen

  • Tilknyttet:
    Forfatter
    ved Miljø og nye ressurser ved SINTEF Ocean

Kolbjørn Zahlsen

  • Tilknyttet:
    Forfatter
    ved Bioteknologi og nanomedisin ved SINTEF AS

Kristin Bonaunet

  • Tilknyttet:
    Forfatter
    ved Miljø og nye ressurser ved SINTEF Ocean

Astrid Hyldbakk

  • Tilknyttet:
    Forfatter
    ved Bioteknologi og nanomedisin ved SINTEF AS
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