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Growth of microalgae with increased calorific values in a tubular bioreactor

Illman, A. M.; Carden, A.; Shales, S. W.; Scragg, A. H.


A. M. Illman

A. Carden

S. W. Shales

A. H. Scragg


In order to use microalgae as a fuel the algae should be of high calorific value and must be capable of growth in large volumes. Chlorella vulgaris and C. emersonii have been shown to grow in a 230 1 pumped tubular photobioreactor in Watanabe's medium and a low nitrogen medium. The low nitrogen medium induces higher lipid accumulation in both algae, which increased their calorific value. The highest calorific value was obtained with C. vulgaris (28 kJ g-1) grown in low nitrogen medium. However, the biomass productivity was 24 mg dry wt l-1 d-1 in the low nitrogen medium which was lower than in Watanabe's medium (40 mg dry wt l-1 d-1) and represents a reduced energy recovery. © 2002 Elsevier Science Ltd. All rights reserved.


Shales, S. W., Carden, A., Illman, A. M., & Scragg, A. H. (2002). Growth of microalgae with increased calorific values in a tubular bioreactor. Biomass and Bioenergy, 23(1), 67-73.

Journal Article Type Article
Publication Date Jul 10, 2002
Journal Biomass and Bioenergy
Print ISSN 0961-9534
Publisher Elsevier
Peer Reviewed Not Peer Reviewed
Volume 23
Issue 1
Pages 67-73
Keywords biofuel chlorella vulgaris, chlorella emersonii, low nitrogen medium, pumped tubular photobioreactor
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Additional Information Additional Information : Lead author. Initial part of a study on the use of microalgae as a renewable energy source. Microalgae can be either used directly as a fuel or to produce oil for biodiesel. In both cases the microalgae should have a high calorific value and be grown in large volumes.

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