title: Vertical profile of algal distribution during aeration prior to intake tower for safe drinking water.
abstract: Blue-green algae or cyanobacteria comprise a diverse group of organisms, all of which generate potent natural toxins, as well as characteristic odours. In particular, blue-green algae, such as Microcystis and Anabaena, are often detected abundantly in surface water used as a drinking water resource. In order to confirm our ability to provide safe drinking water even during a water bloom, we have conducted an investigation into the vertical distribution of algae during aeration prior to entry into the intake tower at a dam site. Our analysis of the vertical algal distribution during aeration indicated that aeration occurring at the intake tower exerts a significant influence on the safety of the drinking water. It was determined that the discontinuation of aeration and an increase in the depth at which water intake is conducted, constitutes a viable strategy for the maintenance of toxin- and odour-free drinking water, particularly during water bloom events.
authors.affiliation: Youngsan River Water Research Lab., National Institute of Environmental Research, 1110-8 Oryong-dong Buk-gu, Gwangju 500-480, Korea. khk228@me.go.kr
authors.forename: H K
authors.initials: HK
authors.lastname: Kim
authors.forename: J M
authors.initials: JM
authors.lastname: Kim
authors.forename: Y J
authors.initials: YJ
authors.lastname: Lee
authors.forename: B I
authors.initials: BI
authors.lastname: Kim
authors.forename: B C
authors.initials: BC
authors.lastname: Lee
authors.forename: N I
authors.initials: NI
authors.lastname: Chang
mesh_terms: D017033:Anabaena / Q000254:growth & development / Q000302:isolation & purification*; D046931:Microcystis / Q000254:growth & development / Q000302:isolation & purification*; D014871:Water Microbiology; D014881:Water Supply