Cristin-resultat-ID: 1801446
Sist endret: 28. september 2020, 14:55
NVI-rapporteringsår: 2020
Resultat
Vitenskapelig artikkel
2020

Product Inhibition of Biological Hydrogen Production in Batch Reactors

Bidragsytere:
  • Subhashis Das
  • Rajnish K Calay
  • Ranjana Chowdhury
  • kaustav Nath og
  • Fasil Eregno

Tidsskrift

Energies
ISSN 1996-1073
e-ISSN 1996-1073
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2020
Publisert online: 2020
Trykket: 2020
Volum: 13
Hefte: 6
Open Access

Importkilder

Scopus-ID: 2-s2.0-85081984004

Beskrivelse Beskrivelse

Tittel

Product Inhibition of Biological Hydrogen Production in Batch Reactors

Sammendrag

In this paper, the inhibitory effects of added hydrogen in reactor headspace on fermentative hydrogen production from acidogenesis of glucose by a bacterium, Clostridium acetobutylicum, was investigated experimentally in a batch reactor. It was observed that hydrogen itself became an acute inhibitor of hydrogen production if it accumulated excessively in the reactor headspace. A mathematical model to simulate and predict biological hydrogen production process was developed. The Monod model, which is a simple growth model, was modified to take inhibition kinetics on microbial growth into account. The modified model was then used to investigate the effect of hydrogen concentration on microbial growth and production rate of hydrogen. The inhibition was moderate as hydrogen concentration increased from 10% to 30% (v/v). However, a strong inhibition in microbial growth and hydrogen production rate was observed as the addition of H2 increased from 30% to 40% (v/v). Practically, an extended lag in microbial growth and considerably low hydrogen production rate were detected when 50% (v/v) of the reactor headspace was filled with hydrogen. The maximum specific growth rate (µmax), substrate saturation constant (ks), a critical hydrogen concentration at which microbial growth ceased (H2*) and degree of inhibition were found to be 0.976 h−1, 0.63 ± 0.01 gL, 24.74 mM, and 0.4786, respectively

Bidragsytere

Subhashis Das

  • Tilknyttet:
    Forfatter
    ved Institutt for bygg, energi og materialteknologi ved UiT Norges arktiske universitet

Rajnish Kaur Calay

Bidragsyterens navn vises på dette resultatet som Rajnish K Calay
  • Tilknyttet:
    Forfatter
    ved Institutt for bygg, energi og materialteknologi ved UiT Norges arktiske universitet

Ranjana Chowdhury

  • Tilknyttet:
    Forfatter
    ved Jadavpur University

kaustav Nath

  • Tilknyttet:
    Forfatter
    ved Indian Institute of Technology, Kharagpur

Fasil Ejigu Eregno

Bidragsyterens navn vises på dette resultatet som Fasil Eregno
  • Tilknyttet:
    Forfatter
    ved Institutt for bygg, energi og materialteknologi ved UiT Norges arktiske universitet
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