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Continuous H-2/CO2 fermentation for acetic acid production under transient and continuous sulfide inhibition

(2021) CHEMOSPHERE. 285.
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Abstract
Waste gas fermentation powered by renewable H-2 is reaching kiloton scale. The presence of sulfide, inherent to many waste gases, can cause inhibition, requiring additional gas treatment. In this work, acetogenesis and methanogenesis inhibition by sulfide were studied in a 10-L mixed-culture fermenter, supplied with CO2 and connected with a water electrolysis unit for electricity-powered H-2 supply. Three cycles of inhibition (1.3 mM total dissolved sulfide (TDS)) and recovery were applied, then the fermenter was operated at 0.5 mM TDS for 35 days. During operation at 0.5 mM TDS the acetate production rate reached 7.1 +/- 1.5 mmol C L-1 d(-1). Furthermore, 43.7 +/- 15.6% of the electrons, provided as H-2, were distributed to acetate and 7.7 +/- 4.1% to butyrate, the second most abundant fermentation product. Selectivity of sulfide as inhibitor was demonstrated by a 7 days lag-phase of methanogenesis recovery, compared to 48 h for acetogenesis and by the less than 1% electrons distribution to CH4, under 0.5 mM TDS. The microbial community was dominated by Eubacterium, Proteiniphilum and an unclassified member of the Eggerthellaceae family. The taxonomic diversity of the community decreased and conversely the phenotypic diversity increased, during operation. This work illustrated the scale-up potential of waste gas fermentations, by elucidating the effect of sulfide as a common gas impurity, and by demonstrating continuous, potentially renewable supply of electrons.
Keywords
CO2 utilization, Gas fermentation, Acetogenesis, Sulfide stress, CONTINUOUS GAS FERMENTATION, HYDROGEN-SULFIDE, ANAEROBIC-DIGESTION, EUBACTERIUM-LIMOSUM, GEN.-NOV., ACETATE, REACTOR, GROWTH, ADAPTATION, INCREASE

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MLA
Ntagia, Eleftheria, et al. “Continuous H-2/CO2 Fermentation for Acetic Acid Production under Transient and Continuous Sulfide Inhibition.” CHEMOSPHERE, vol. 285, 2021, doi:10.1016/j.chemosphere.2021.131536.
APA
Ntagia, E., Chatzigiannidou, I., Carvajal Arroyo, J. M., Arends, J., & Rabaey, K. (2021). Continuous H-2/CO2 fermentation for acetic acid production under transient and continuous sulfide inhibition. CHEMOSPHERE, 285. https://doi.org/10.1016/j.chemosphere.2021.131536
Chicago author-date
Ntagia, Eleftheria, Ioanna Chatzigiannidou, Jose Maria Carvajal Arroyo, Jan Arends, and Korneel Rabaey. 2021. “Continuous H-2/CO2 Fermentation for Acetic Acid Production under Transient and Continuous Sulfide Inhibition.” CHEMOSPHERE 285. https://doi.org/10.1016/j.chemosphere.2021.131536.
Chicago author-date (all authors)
Ntagia, Eleftheria, Ioanna Chatzigiannidou, Jose Maria Carvajal Arroyo, Jan Arends, and Korneel Rabaey. 2021. “Continuous H-2/CO2 Fermentation for Acetic Acid Production under Transient and Continuous Sulfide Inhibition.” CHEMOSPHERE 285. doi:10.1016/j.chemosphere.2021.131536.
Vancouver
1.
Ntagia E, Chatzigiannidou I, Carvajal Arroyo JM, Arends J, Rabaey K. Continuous H-2/CO2 fermentation for acetic acid production under transient and continuous sulfide inhibition. CHEMOSPHERE. 2021;285.
IEEE
[1]
E. Ntagia, I. Chatzigiannidou, J. M. Carvajal Arroyo, J. Arends, and K. Rabaey, “Continuous H-2/CO2 fermentation for acetic acid production under transient and continuous sulfide inhibition,” CHEMOSPHERE, vol. 285, 2021.
@article{8724529,
  abstract     = {{Waste gas fermentation powered by renewable H-2 is reaching kiloton scale. The presence of sulfide, inherent to many waste gases, can cause inhibition, requiring additional gas treatment. In this work, acetogenesis and methanogenesis inhibition by sulfide were studied in a 10-L mixed-culture fermenter, supplied with CO2 and connected with a water electrolysis unit for electricity-powered H-2 supply. Three cycles of inhibition (1.3 mM total dissolved sulfide (TDS)) and recovery were applied, then the fermenter was operated at 0.5 mM TDS for 35 days. During operation at 0.5 mM TDS the acetate production rate reached 7.1 +/- 1.5 mmol C L-1 d(-1). Furthermore, 43.7 +/- 15.6% of the electrons, provided as H-2, were distributed to acetate and 7.7 +/- 4.1% to butyrate, the second most abundant fermentation product. Selectivity of sulfide as inhibitor was demonstrated by a 7 days lag-phase of methanogenesis recovery, compared to 48 h for acetogenesis and by the less than 1% electrons distribution to CH4, under 0.5 mM TDS. The microbial community was dominated by Eubacterium, Proteiniphilum and an unclassified member of the Eggerthellaceae family. The taxonomic diversity of the community decreased and conversely the phenotypic diversity increased, during operation. This work illustrated the scale-up potential of waste gas fermentations, by elucidating the effect of sulfide as a common gas impurity, and by demonstrating continuous, potentially renewable supply of electrons.}},
  articleno    = {{131536}},
  author       = {{Ntagia, Eleftheria and Chatzigiannidou, Ioanna and Carvajal Arroyo, Jose Maria and Arends, Jan and Rabaey, Korneel}},
  issn         = {{0045-6535}},
  journal      = {{CHEMOSPHERE}},
  keywords     = {{CO2 utilization,Gas fermentation,Acetogenesis,Sulfide stress,CONTINUOUS GAS FERMENTATION,HYDROGEN-SULFIDE,ANAEROBIC-DIGESTION,EUBACTERIUM-LIMOSUM,GEN.-NOV.,ACETATE,REACTOR,GROWTH,ADAPTATION,INCREASE}},
  language     = {{eng}},
  pages        = {{11}},
  title        = {{Continuous H-2/CO2 fermentation for acetic acid production under transient and continuous sulfide inhibition}},
  url          = {{http://dx.doi.org/10.1016/j.chemosphere.2021.131536}},
  volume       = {{285}},
  year         = {{2021}},
}

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