Photosynthetic performance of a helical tubular photobioreactor incorporating the cyanobacterium spirulina platensis

Biotechnology and Bioengineering - Tập 47 Số 2 - Trang 261-269 - 1995
Yoshitomo Watanabe1, J. de la Noüe2, David O. Hall1
1Division of Life Science, King's College London, University of London, Campden Hill Road, London W8 7AH, United Kingdom
2Department of Food Science and Technology, Université Laval, Québec G1K 7P4, Canada

Tóm tắt

AbstractThe photosynthetic performance of a helical tubular photobioreactor (“Biocoil”), incorporating the filamentous cyanobacterium Spirulina platensis, was investigated. The photobioreactor was constructed in a cylindrical shape (0.9 m high) with a 0.25‐m2basal area and a photostage comprising 60 m of transparent PVC tubing of 1.6‐cm inner diameter (volume = 12.1 L). The inner surface of the cylinder (area = 1.32 m2) was illuminated with cool white fluorescent lamps; the energy input of photosynthetically active radiation(PAR, 400 to 700 nm) into the photobioreactor was 2920 kJ per day. An air‐lift system ncorporating 4%CO2 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 [0.51 g · d biomass/L · day, or 5.44 g · d biomass/m2(inner surface of cylindrical shape)/day] which corresponded to a photosynthetic (PAR) efficiency of 5.45%. The CO2 was efficiently removed from the gaseous stream; monitoring the CO2 the outlet and inlet gas streams showed a 70% removal of CO2 from the inlet gas over an 8‐h period with almost maximum growth rate. © 1995 John Wiley & Sons, Inc.

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Biotechnology and Bioengineering

Tập 47 Số 2

261-269

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