liu.seSearch for publications in DiVA
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • oxford
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Counteracting Ammonia Inhibition in Anaerobic Digestion using Wood Residues: Evaluating Ammonium Adsorption Capacity of Fibres from Pulp and Paper Mills
Linköpings universitet, Institutionen för tema, Tema Miljöförändring. Linköpings universitet, Biogas Research Center.
2021 (engelsk)Independent thesis Advanced level (degree of Master (Two Years)), 20 poäng / 30 hpOppgave
Abstract [en]

One of the main interests in commercial methane production is to maximize the gas yield, and it is thus appealing to use material with relative high methane potential. However, such material often results in process instability whereas ammonia inhibition is common. Removal of ammonia through adsorption is a fairly unexplored method in the field of biogas production, and could prove to be cost-effective.The adsorption capacity of pulp fibres from the paper making industry were investigated through batch adsorption experiments. Additionally, the fibres effect on small scale batch digesters in terms of methane production and cellulase activity was explored. Overall, the adsorption capacity of the pulp fibres was low, whereas Kraft hardwood had the highest adsorption capacity in both an aqueous ammonium solution and digester fluid at 11±3 and 60±20 mg g-1, respectively. The initial total ammonium nitrogen concentration had the highest effect on the adsorption capacity with a positive correlation. The pulp fibres seemingly had no effect on the ammonia inhibited anaerobic digestion systems. However, the cellulase activity was higher after day 5 in the anaerobic digestion systems with a high ammonia concentration.In essence, the overall results showed that the adsorption of the fibres was relatively low and most likely not suitable as a material to prevent ammonia inhibition in an AD.

sted, utgiver, år, opplag, sider
2021. , s. 43
Emneord [en]
Anaerobic digestion, Ammonia inhibition, Fibres, Biogas
HSV kategori
Identifikatorer
URN: urn:nbn:se:liu:diva-177891OAI: oai:DiVA.org:liu-177891DiVA, id: diva2:1589218
Fag / kurs
Biotechnology
Veileder
Examiner
Tilgjengelig fra: 2021-09-01 Laget: 2021-08-30 Sist oppdatert: 2021-09-15bibliografisk kontrollert

Open Access i DiVA

fulltext(1001 kB)466 nedlastinger
Filinformasjon
Fil FULLTEXT01.pdfFilstørrelse 1001 kBChecksum SHA-512
fe5f03abbc1f79f20432580b24db0733faa7010a117465d1d29aa0485778cb9fae83289e88d1c0591903fd78a396e87500054d6383a62ada46521a57127d1ceb
Type fulltextMimetype application/pdf

Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 467 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

urn-nbn

Altmetric

urn-nbn
Totalt: 221 treff
RefereraExporteraLink to record
Permanent link

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