Ändra sökning
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Comparative characterisation and phytotoxicity assessment of biochar and hydrochar derived from municipal wastewater microalgae biomass
University of Edinburgh, UK.
RISE Research Institutes of Sweden, Bioekonomi och hälsa, Bioraffinaderi och energi. Umeå University, Sweden.ORCID-id: 0000-0003-3252-467X
Umeå University, Sweden.
University of Edinburgh, UK.
2023 (Engelska)Ingår i: Bioresource Technology, ISSN 0960-8524, E-ISSN 1873-2976, Vol. 386, artikel-id 129567Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Microalgae, originating from a tertiary treatment of municipal wastewater, is considered a sustainable feedstock for producing biochar and hydrochar, offering great potential for agricultural use due to nutrient content and carbon storage ability. However, there are risks related to contamination and these need to be carefully assessed to ensure safe use of material from wastewater microalgae. Therefore, this study compared the properties and phototoxicity of biochar and hydrochar produced via pyrolysis and hydrothermal carbonisation (HTC) of microalgae under different temperatures and residence times. While biochar promoted germination and seedling growth by up to 11.0% and 70.0%, respectively, raw hydrochar showed strong phytotoxicity, due to the high content of volatile matter. Two post-treatments, dichloromethane (DCM) washing and further pyrolysis, proved to be effective methods for mitigating phytotoxicity of hydrochar. Additionally, biochar had 35.8–38.6% fixed carbon, resulting in higher carbon sequestration potential compared to hydrochar. © 2023 The Author(s)

Ort, förlag, år, upplaga, sidor
Elsevier Ltd , 2023. Vol. 386, artikel-id 129567
Nyckelord [en]
Carbonization, Dichloromethane, Microorganisms, Pyrolysis, Risk assessment, Wastewater treatment, Agricultural use, Biochar, Carbon storage, Comparative characterizations, Micro-algae, Municipal wastewaters, Nutrient contents, Property, Storage abilities, Tertiary treatment, biomass, carbon sequestration, germination, nutrient, phytotoxicity, wastewater, Microalgae
Nationell ämneskategori
Miljövetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-65929DOI: 10.1016/j.biortech.2023.129567Scopus ID: 2-s2.0-85166234174OAI: oai:DiVA.org:ri-65929DiVA, id: diva2:1791022
Anmärkning

Funding sponsor: Scottish Alliance for Geoscience, Environment and Society.

Tillgänglig från: 2023-08-24 Skapad: 2023-08-24 Senast uppdaterad: 2023-12-28Bibliografiskt granskad

Open Access i DiVA

Fulltext saknas i DiVA

Övriga länkar

Förlagets fulltextScopus

Person

Benavente, Verónica

Sök vidare i DiVA

Av författaren/redaktören
Benavente, Verónica
Av organisationen
Bioraffinaderi och energi
I samma tidskrift
Bioresource Technology
Miljövetenskap

Sök vidare utanför DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetricpoäng

doi
urn-nbn
Totalt: 2 träffar
RefereraExporteraLänk till posten
Permanent länk

Direktlänk
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Annat format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annat språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf