Brief Report
Jun 1974
Influence of Free CO2 on Q10 for Chlorella Vulgaris
Authors: John T. Novak, AM.ASCE, and H. David SandersAuthor Affiliations
Publication: Journal of the Environmental Engineering Division
Volume 100, Issue 3
Abstract
The effect of temperature on microbial growth rates is frequently expressed in terms of Q10 values in which Q10 equals rate at (T + 10)°C divided by rate at T°C. Considerable data exist suggesting that for algal growth described by the Monod equation, the maximum growth rate varies with temperature. To clarify the relationship between the limiting nutrient concentration and the temperature effect, the specific growth rate of the alga Chlorella vulgaris was determined at three temperatures over a range of free CO2 levels with all other nutrients being provided in excess amounts and light being held constant. The resulting data using a modified Arrhenius equation to describe algal growth as a function of temperature under carbon limiting conditions were evaluated. The Q10 values frequently found in laboratory determinations may be inapplicable under field conditions with natural waters. For biological modeling in natural waters, an equation is presented to describe the influence of the temperature on organism growth rates.
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Published In
Journal of the Environmental Engineering Division
Volume 100 • Issue 3 • June 1974
Pages: 798 - 802
Copyright
© 1974 American Society of Civil Engineers.
History
Published in print: Jun 1974
Published online: Feb 11, 2021
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Affiliations
John T. Novak, AM.ASCE
Assoc. Prof.; Dept. of Civ. Engrg., Univ. of Missouri-Columbia, Columbia, MO, USA
H. David Sanders
Sanitary Engr.; City of Boise, Boise, ID, USA
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ASCE Library Cards let you download journal articles, proceedings papers, and available book chapters across the entire ASCE Library platform. ASCE Library Cards remain active for 24 months or until all downloads are used. Note: This content will be debited as one download at time of checkout.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.
Terms of Use: ASCE Library Cards are for individual, personal use only. Reselling, republishing, or forwarding the materials to libraries or reading rooms is prohibited.