Assessment via the modified gompertz-model reveals new insights concerning the effects of ionic liquids on biohydrogen production

Nándor Nemestóthy, Péter Bakonyi, Tamás Rózsenberszki, Gopalakrishnan Kumar, László Koók, Gábor Kelemen, Sang Hyoun Kim, Katalin Bélafi-Bakó

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

Lignocellulosic biofuel, in particular hydrogen gas production is governed by successful feedstock pretreatment, hydrolysis and fermentation. In these days, remarkable attention is paid to the use of ionic liquids to make the fermentable regions of lignocellulose biomass more accessible to the biocatalysts. Although these compounds have great potential for this purpose, their presence during the consecutive fermentation stage may pose a threat on process stability due to certain toxic effects. This, however, has not been specifically elaborated for dark fermentative biohydrogen generation. Hence, in this work, two common imidazolium-type ionic liquids (1-butyl-3-methylimidazolium acetate, ([bmim][Ac]) and 1-butyl-3-methylimidazolium chloride, ([bmim][Cl])) were employed in mixed culture biohydrogen fermentation to investigate the possible impacts related to their presence and concentrations. The batch assays were evaluated comparatively via the modified Gompertz-model based on the important parameters characterizing the process, namely the biohydrogen production potential, maximum biohydrogen production rate and lag-phase time.

Original languageEnglish
Pages (from-to)18918-18924
Number of pages7
JournalInternational Journal of Hydrogen Energy
Volume43
Issue number41
DOIs
Publication statusPublished - 2018 Oct 11

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

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