Photosynthetic performance of a helical tubular photobioreactor incorporating the cyanobacterium Spirulina platensis
- Univ. of London (United Kingdom)
- Univ. Laval, Quebec City, Quebec (Canada). Dept. of Food Science and Technology
The photosynthetic performance of a helical tubular photobioreactor (``Biocoil``), incorporating the filamentous cyanobacterium Spirulina platensis, was investigated. The photobioreactor was constructed in a cylindrical shape with a 0.25-m{sup 2} basal area and a photostage comprising 60 m of transparent PVC tubing of 1.6-cm inner diameter. The inner surface of the cylinder was illuminated with cool white fluorescent lamps; the energy input of photosynthetically active radiation into the photobioreactor was 2,920 kJ per day. An air-lift system incorporating 4% CO{sub 2} was used to circulate the growth medium in the tubing. The maximum productivity achieved in batch culture was 7.18 g dry biomass per day which corresponded to a photosynthetic (PAR) efficiency of 5.45%. The CO{sub 2} was efficiently removed from the gaseous stream; monitoring the CO{sub 2} in the outlet and inlet gas streams showed a 70% removal of CO{sub 2} from the inlet gas over an 8-h period with almost maximum growth rate.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 78133
- Journal Information:
- Biotechnology and Bioengineering, Vol. 47, Issue 2; Other Information: PBD: 20 Jul 1995
- Country of Publication:
- United States
- Language:
- English
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