CO2 fixation by Chlorella HA-1 cultured in bubble columns

Ki Don Sung, Jin Suk Lee, Chul Seung Shin, Mi Sun Kim, Soon Chul Park, Seung Wook Kim

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Abstract

The characteristics of CO2 fixation by Chlorella HA-1 cultured in bubble columns were studied to achieve high photosynthetic rates per basal area. The influence of experimental conditions such as the diameter of a bubble column and gas flow rate, on photosynthesis of Chlorella HA-1 was investigated. The maximum productivity and the overall CO2 fixation rate obtained in a 0.15 L bubble column was 1.09 g dry biomass/L-day and 1048 g CO2/m2-day, respectively. Light limitation has been observed in the bubble columns having a diameter larger than 3.5 cm. As the reactor volume increased, the decrease of the CO2 fixation rate was remarkable. High gas flow rate was helpful to mitigate the light limitation problem.

Original languageEnglish
Pages (from-to)1-6
Number of pages6
JournalKorean Journal of Applied Microbiology and Biotechnology
Volume26
Issue number1
Publication statusPublished - 1998 Feb 1

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Keywords

  • Aeration rate
  • Bubble column
  • CO fixation
  • Mixing
  • Photoinhibition

ASJC Scopus subject areas

  • Biotechnology
  • Applied Microbiology and Biotechnology

Cite this

Sung, K. D., Lee, J. S., Shin, C. S., Kim, M. S., Park, S. C., & Kim, S. W. (1998). CO2 fixation by Chlorella HA-1 cultured in bubble columns. Korean Journal of Applied Microbiology and Biotechnology, 26(1), 1-6.