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Carbon dioxide capture using Escherichia coli expressing carbonic anhydrase in a foam bioreactor.

Publication ,  Journal Article
Watson, SK; Han, Z; Su, WW; Deshusses, MA; Kan, E
Published in: Environmental technology
December 2016

The present study reports CO2 capture and conversion to bicarbonate using Escherichia coli expressing carbonic anhydrase (CA) on its cell surface in a novel foam bioreactor. The very large gas-liquid interfacial area in the foam bioreactor promoted rapid CO2 absorption while the CO2 in the aqueous phase was subsequently converted to bicarbonate ions by the CA. CO2 gas removal in air was investigated at various conditions such as gas velocity, cell density and CO2 inlet concentration. Regimes for kinetic and mass transfer limitations were defined. Very high removal rates of CO2 were observed: 9570 g CO2 m(-3) bioreactor h(-1) and a CO2 removal efficiency of 93% at 4% inlet CO2 when the gas retention time was 24 s, and cell concentration was 4 gdw L(-1). These performances are superior to earlier reports of experimental bioreactors using CA for CO2 capture. Overall, this bioreactor system has significant potential as an alternative CO2 capture technology.

Duke Scholars

Published In

Environmental technology

DOI

EISSN

1479-487X

ISSN

0959-3330

Publication Date

December 2016

Volume

37

Issue

24

Start / End Page

3186 / 3192

Related Subject Headings

  • Escherichia coli
  • Environmental Engineering
  • Carbonic Anhydrases
  • Carbon Sequestration
  • Carbon Dioxide
  • Bioreactors
  • Bicarbonates
  • 41 Environmental sciences
  • 40 Engineering
  • 31 Biological sciences
 

Citation

APA
Chicago
ICMJE
MLA
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Watson, S. K., Han, Z., Su, W. W., Deshusses, M. A., & Kan, E. (2016). Carbon dioxide capture using Escherichia coli expressing carbonic anhydrase in a foam bioreactor. Environmental Technology, 37(24), 3186–3192. https://doi.org/10.1080/09593330.2016.1181110
Watson, Stuart K., Zhenlin Han, Wei Wen Su, Marc A. Deshusses, and Eunsung Kan. “Carbon dioxide capture using Escherichia coli expressing carbonic anhydrase in a foam bioreactor.Environmental Technology 37, no. 24 (December 2016): 3186–92. https://doi.org/10.1080/09593330.2016.1181110.
Watson SK, Han Z, Su WW, Deshusses MA, Kan E. Carbon dioxide capture using Escherichia coli expressing carbonic anhydrase in a foam bioreactor. Environmental technology. 2016 Dec;37(24):3186–92.
Watson, Stuart K., et al. “Carbon dioxide capture using Escherichia coli expressing carbonic anhydrase in a foam bioreactor.Environmental Technology, vol. 37, no. 24, Dec. 2016, pp. 3186–92. Epmc, doi:10.1080/09593330.2016.1181110.
Watson SK, Han Z, Su WW, Deshusses MA, Kan E. Carbon dioxide capture using Escherichia coli expressing carbonic anhydrase in a foam bioreactor. Environmental technology. 2016 Dec;37(24):3186–3192.

Published In

Environmental technology

DOI

EISSN

1479-487X

ISSN

0959-3330

Publication Date

December 2016

Volume

37

Issue

24

Start / End Page

3186 / 3192

Related Subject Headings

  • Escherichia coli
  • Environmental Engineering
  • Carbonic Anhydrases
  • Carbon Sequestration
  • Carbon Dioxide
  • Bioreactors
  • Bicarbonates
  • 41 Environmental sciences
  • 40 Engineering
  • 31 Biological sciences