Selective Algicidal Activity of Surfactant and Its Mechanism1
Publication: Journal of Hazardous, Toxic, and Radioactive Waste
Volume 15, Issue 1
Abstract
Cetyltrimethyl ammonium chloride (CTAC), linear alkylbenzene sulfonate (LAS), and t-octylphenoxypolyethoxyethanol (Triton X-100) were selected to investigate their ability and corresponding physiological mechanisms to control turbulent biofilm formed by Chlorella vulgaris. Significant algicidal activity of CTAC was observed, in contrast to the minor inhibition on algae biomass generated by LAS and Triton X-100. CTAC-treated sample appeared to plasmolyze the algae cell, while LAS treated and Triton X-100-treated sample did not show obvious alteration. The increase in surfactant concentration led to the inhibition efficiency increase in acid phosphatase (ACP) activity. The ACP activities of CTAC-treated sample were restrained most among the tested surfactants. These results indicated the possible mechanisms of surfactants on the growth of algae and the potential application of cationic surfactants in controlling algae blooms.
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Acknowledgments
We would like to acknowledge financial support from the Research Foundation of National Natural Science Foundation of China (No. 20877065), Program for New Century Excellent Talents in University of China (NECT-10-0148), Excellent Youth Project of Education Committee of Hunan Province of China (Grant No. UNSPECIFIED07B077) and Specialized Research Fund for the Doctoral Program of Xiangtan University. The writers would also like to thank for their technology support the State Key Library of Life Sciences in Hunan Normal University in the form of a transmission electron microscope.
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Information & Authors
Information
Published In
Journal of Hazardous, Toxic, and Radioactive Waste
Volume 15 • Issue 1 • January 2011
Pages: 21 - 25
Copyright
© 2011 ASCE.
History
Received: Mar 13, 2010
Accepted: Jul 23, 2010
Published online: Jul 26, 2010
Published in print: Jan 2011
Notes
The paper is from the 6th International Conference on Urban Watershed Management Nanchang Meeting.
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