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A study of the energetics and economics of microalgal mass culture with the marine chlorophyte Tetraselmis suecica : Implications for use of power plant stack gases

A study of the energetics and economics of microalgal mass culture with the marine chlorophyte... 10.1002/bit.260371007.abs The marine phytoplankter Tetraselmis suecica was grown in shallow outdoor flumes for a period of approximately 6 months at the Natural Energy Laboratory of Hawaii. In full sunlight, gross production rates were 15–20 g C m−2 d−1. The corresponding photosynthetic efficiencies (PE's) were 9–10%. Respiration losses removed about half the gross production. The CO2 utilization efficiencies of 96 ± 11% were achieved by bubbling CO2 into the culture with the use of a counterflow sump system. Adding the CO2 in the form of carbonated water resulted in utilization efficiencies of 81 ± 11%. Archimedes screws proved superior to both paddle wheels and propellers as a means of circulating the water in the flumes. Insertion of foil arrays into the flumes to effect systematic mixing of the culture significantly enhanced production. The enhancement was greater when the foils were oriented at a small angle relative to the horizontal than when they were oriented at the same angle relative to the vertical. Light modulation effects are implicated as the probable cause of most of the enhancement. Substitution of electric power plant stack gases for pure CO2 resulted in no significant change in the production of T. suecica grown in chemostat culture. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Biotechnology and Bioengineering Wiley

A study of the energetics and economics of microalgal mass culture with the marine chlorophyte Tetraselmis suecica : Implications for use of power plant stack gases

Biotechnology and Bioengineering , Volume 37 (10) – Apr 25, 1991

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References (30)

Publisher
Wiley
Copyright
Copyright © 1991 John Wiley & Sons, Inc.
ISSN
0006-3592
eISSN
1097-0290
DOI
10.1002/bit.260371007
pmid
18597318
Publisher site
See Article on Publisher Site

Abstract

10.1002/bit.260371007.abs The marine phytoplankter Tetraselmis suecica was grown in shallow outdoor flumes for a period of approximately 6 months at the Natural Energy Laboratory of Hawaii. In full sunlight, gross production rates were 15–20 g C m−2 d−1. The corresponding photosynthetic efficiencies (PE's) were 9–10%. Respiration losses removed about half the gross production. The CO2 utilization efficiencies of 96 ± 11% were achieved by bubbling CO2 into the culture with the use of a counterflow sump system. Adding the CO2 in the form of carbonated water resulted in utilization efficiencies of 81 ± 11%. Archimedes screws proved superior to both paddle wheels and propellers as a means of circulating the water in the flumes. Insertion of foil arrays into the flumes to effect systematic mixing of the culture significantly enhanced production. The enhancement was greater when the foils were oriented at a small angle relative to the horizontal than when they were oriented at the same angle relative to the vertical. Light modulation effects are implicated as the probable cause of most of the enhancement. Substitution of electric power plant stack gases for pure CO2 resulted in no significant change in the production of T. suecica grown in chemostat culture.

Journal

Biotechnology and BioengineeringWiley

Published: Apr 25, 1991

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