Vertical profile of algal distribution during aeration prior to intake tower for safe drinking water.
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.
Kim
H K
HK
Youngsan River Water Research Lab., National Institute of Environmental Research, 1110-8 Oryong-dong Buk-gu, Gwangju 500-480, Korea. khk228@me.go.kr
Kim
J M
JM
Lee
Y J
YJ
Kim
B I
BI
Lee
B C
BC
Chang
N I
NI
D017033:Anabaena / Q000254:growth & development / Q000302:isolation & purification*; D046931:Microcystis / Q000254:growth & development / Q000302:isolation & purification*; D014871:Water Microbiology; D014881:Water Supply