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Design and performance of an α-type tubular photobioreactor for mass cultivation of microalgae
Journal - Journal of Applied Phycology
Publisher - Springer Netherlands
Issue -
Volume 7, Number 1 / February, 1995
DOI - 10.1007/BF00003549
SpringerLink Date - Saturday, July 29, 2006
Design and performance of an α-type tubular photobioreactor for mass cultivation of microalgae
Yuan-Kun Lee1, Sun-Yeun Ding1, Chin-Seng Low1, Yoon-Ching Chang2, Wayne L. Forday2 and Poo-Chin Chew3
(1)
Department of Microbiology, National University of Singapore, Kent Ridge, Singapore, 0511
(2)
Department of Biotechnology, Ngee Ann Polytechnic, 535 Clementi Road, Singapore, 2159
(3)
Gold Coin Services Singapore Pte Ltd, 14 Jalan Tepong, Singapore, 2261
Received: 25 April 1994 Revised: 28 September 1994 Accepted: 2 October 1994
Abstract
A α-shape tubular photobioreactor was designed and constructed based on knowledge of algal growth physiology using sunlight. The algal culture is lifted 5 m by air to a receiver tank. From the receiver tank, the culture flows down parallel polyvinyl-chloride tubes of 25 m length and 2.5 cm internal diameter, placed at an angle of 25 ° with the horizontal to reach another set of air riser tubes. Again the culture is lifted 5 m to another receiver tank, then flows down parallel tubes connected to the base of the first set of riser tubes. Thus, the bioreactor system looks like the symbol α. As there is no change in the direction of the liquid flow, high liquid flow rate and Reynolds Number can be achieved at relatively low air flow rate in the riser tubes. Due to the high area-volume ratio of the bioreactor, and equable photosynthetically available radiance and culture temperature, biomass density of exceeding 10 g dry weight L-1 and daily output rate of 72 g dry weight m-2 land d-1 were achieved.
Key words photobioreactor - microalgae - design performance
Original Springer Link here
Nature gave us oil from algae; perhaps we should try Nature's way again
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About Oilgae - Oilgae - Oil & Biodiesel from Algae has a focus on biodiesel production from algae while also discussing alternative energy in general. Algae present an exciting possibility as a feedstock for biodiesel, and when you realise that oil was originally formed from algae - among other related plants - you think "Hey! Why not oil again from algae!"
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