Effect of chlorination on the cell integrity of two noxious cyanobacteria and their releases of odorants

Abstract

Research Article| December 01 2009 Effect of chlorination on the cell integrity of two noxious cyanobacteria and their releases of odorants Tsair-Fuh Lin; Tsair-Fuh Lin 1Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan Tel.: [phone]; E-mail: [e-mail] Search for other works by this author on: This Site PubMed Google Scholar De-Wei Chang; De-Wei Chang 1Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan Search for other works by this author on: This Site PubMed Google Scholar Shao-Kai Lien; Shao-Kai Lien 1Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan Search for other works by this author on: This Site PubMed Google Scholar Yun-Shen Tseng; Yun-Shen Tseng 1Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan Search for other works by this author on: This Site PubMed Google Scholar Yi-Ting Chiu; Yi-Ting Chiu 1Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan Search for other works by this author on: This Site PubMed Google Scholar Yi-Shen Wang Yi-Shen Wang 1Department of Environmental Engineering, National Cheng Kung University, Tainan 70101, Taiwan Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2009) 58 (8): 539–551. https://doi.org/10.2166/aqua.2009.117 Article history Received: February 15 2009 Accepted: August 25 2009 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Tsair-Fuh Lin, De-Wei Chang, Shao-Kai Lien, Yun-Shen Tseng, Yi-Ting Chiu, Yi-Shen Wang; Effect of chlorination on the cell integrity of two noxious cyanobacteria and their releases of odorants. Journal of Water Supply: Research and Technology-Aqua 1 December 2009; 58 (8): 539–551. doi: https://doi.org/10.2166/aqua.2009.117 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex The effect of chlorination on cell integrity and release of metabolites of two noxious cyanobacteria, a β-cyclocitral producer—Microcystis aeruginosa—and a geosmin producer—Anabaena circinalis—was investigated. Photos from a scanning electron microscope revealed that Microcystis cell surfaces were deformed after chlorination, and filamentary Anabaena cells were ruptured at the junction of vegetative cell units. Chlorination experiments indicated that both cyanobacteria are susceptible to attack by chlorine. A first-order decay model was used to simulate the cell-rupture kinetics during chlorination. Using laboratory cultures, the observed rate constants are 670–1,100 M−1 s−1 for M. aeruginosa, which are 1.3–5.0 times as large as those for A. circinalis. For unfiltered Microcystis-laden reservoir waters, a broader range of rate constants, 70–590 M−1 s−1, were obtained. The rate constant was reduced in more eutrophic water, due probably to the competition of chlorine with other cyanobacteria in water. Geosmin was rapidly released into water immediately after the Anabaena cells were ruptured. However, a portion of geosmin remained cell-bound. For Microcystis, the total β-cyclocitral concentration decreased quickly during chlorination in most cases. It is speculated that the enzymes leading to the formation of β-cyclocitral were inhibited by chlorine, thus causing a sudden reduction of β-cyclocitral in the system. Anabaena, β-cyclocitral, cell rupture, chlorination, geosmin, Microcystis This content is only available as a PDF. © IWA Publishing 2009 You do not currently have access to this content.