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CO2-removal characteristics of Anacystis nidulans R2 in airlift bioreactors

Author

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  • Yamada, Hidenao
  • Ohkuni, Narumasa
  • Kajiwara, Susumu
  • Ohtaguchi, Kazuhisa

Abstract

The cyanobacterium Anacystis nidulans R2 is a photosynthetic procaryote grown only under inorganic carbon conditions. We studied cell-growth (CO2-removal) characteristics of this strain, cultivated photoautotrophically at 30°C in 1.1 dm3 in airlift bioreacters. The highest growth rate of 0.046 h−1 was achieved when the culture was illuminated at 8 klx and sparged with 5% CO2 (volume/volume). But, the level of attainable cell mass concentration was not greatly affected by the CO2 concentration between 5% and 30%. These results are suggestive of an opportunity to integrate this bioreactor as a technique for direct CO2 removal from boiler flue gas.

Suggested Citation

  • Yamada, Hidenao & Ohkuni, Narumasa & Kajiwara, Susumu & Ohtaguchi, Kazuhisa, 1997. "CO2-removal characteristics of Anacystis nidulans R2 in airlift bioreactors," Energy, Elsevier, vol. 22(2), pages 349-352.
    • Handle: RePEc:eee:energy:v:22:y:1997:i:2:p:349-352
    DOI: 10.1016/S0360-5442(96)00104-1
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