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Conversion of sewage sludge to commodity chemicals via syngas fermentation

(2015) WATER SCIENCE AND TECHNOLOGY. 72(3). p.415-420
Author
Organization
Abstract
Gasification of sewage sludge allows the recovery of energy, and produces a mix of CO, CO2 and H-2 called synthesis gas (or syngas), which can be fermented by acetogenic bacteria to added-value products. This work presents the conversion of syngas to organic acids and alcohols using both pure and mixed cultures. Pure culture kinetic experiments with Clostridium carboxidivorans P7 resulted in the production of high concentrations of acetate (454 mgC/L) and ethanol (167 mgC/L). The pH was the main factor driving solventogenesis, with about 50% of the products in the form of alcohols at pH 5. Conversely, laboratory-scale experiments using a carboxydotrophic mixed culture of the genus Clostridium enriched from anaerobic digester sludge of a municipal wastewater treatment plant was capable of producing mainly butyrate, with maximum concentration of 1,184 mgC/L.
Keywords
added-value products, biofuels, mixed cultures, sewage sludge gasification, syngas, Wood-Ljungdahl pathway, CARBON-DIOXIDE, GASIFICATION, PYROLYSIS, ACIDS, GAS

Citation

Please use this url to cite or link to this publication:

MLA
Ganigué, Ramon et al. “Conversion of Sewage Sludge to Commodity Chemicals via Syngas Fermentation.” WATER SCIENCE AND TECHNOLOGY 72.3 (2015): 415–420. Print.
APA
Ganigué, R., Ramio-Pujol, S., Sanchez, P., Baneras, L., & Colprim, J. (2015). Conversion of sewage sludge to commodity chemicals via syngas fermentation. WATER SCIENCE AND TECHNOLOGY, 72(3), 415–420.
Chicago author-date
Ganigué, Ramon, Sara Ramio-Pujol, Patricia Sanchez, Lluis Baneras, and Jesus Colprim. 2015. “Conversion of Sewage Sludge to Commodity Chemicals via Syngas Fermentation.” Water Science and Technology 72 (3): 415–420.
Chicago author-date (all authors)
Ganigué, Ramon, Sara Ramio-Pujol, Patricia Sanchez, Lluis Baneras, and Jesus Colprim. 2015. “Conversion of Sewage Sludge to Commodity Chemicals via Syngas Fermentation.” Water Science and Technology 72 (3): 415–420.
Vancouver
1.
Ganigué R, Ramio-Pujol S, Sanchez P, Baneras L, Colprim J. Conversion of sewage sludge to commodity chemicals via syngas fermentation. WATER SCIENCE AND TECHNOLOGY. 2015;72(3):415–20.
IEEE
[1]
R. Ganigué, S. Ramio-Pujol, P. Sanchez, L. Baneras, and J. Colprim, “Conversion of sewage sludge to commodity chemicals via syngas fermentation,” WATER SCIENCE AND TECHNOLOGY, vol. 72, no. 3, pp. 415–420, 2015.
@article{7208350,
  abstract     = {Gasification of sewage sludge allows the recovery of energy, and produces a mix of CO, CO2 and H-2 called synthesis gas (or syngas), which can be fermented by acetogenic bacteria to added-value products. This work presents the conversion of syngas to organic acids and alcohols using both pure and mixed cultures. Pure culture kinetic experiments with Clostridium carboxidivorans P7 resulted in the production of high concentrations of acetate (454 mgC/L) and ethanol (167 mgC/L). The pH was the main factor driving solventogenesis, with about 50% of the products in the form of alcohols at pH 5. Conversely, laboratory-scale experiments using a carboxydotrophic mixed culture of the genus Clostridium enriched from anaerobic digester sludge of a municipal wastewater treatment plant was capable of producing mainly butyrate, with maximum concentration of 1,184 mgC/L.},
  author       = {Ganigué, Ramon and Ramio-Pujol, Sara and Sanchez, Patricia and Baneras, Lluis and Colprim, Jesus},
  issn         = {0273-1223},
  journal      = {WATER SCIENCE AND TECHNOLOGY},
  keywords     = {added-value products,biofuels,mixed cultures,sewage sludge gasification,syngas,Wood-Ljungdahl pathway,CARBON-DIOXIDE,GASIFICATION,PYROLYSIS,ACIDS,GAS},
  language     = {eng},
  number       = {3},
  pages        = {415--420},
  title        = {Conversion of sewage sludge to commodity chemicals via syngas fermentation},
  url          = {http://dx.doi.org/10.2166/wst.2015.222},
  volume       = {72},
  year         = {2015},
}

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