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http://dx.doi.org/10.4491/KSEE.2016.38.9.482

Decision Algorithm of Natural Algae Coagulant Dose to Control Algae from the Influent of Water Works  

Jang, Yeo-Ju (E.D.R Landscaping Industry Co., LTD.)
Jung, Jin-Hong (Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Lim, Hyun-Man (Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Yoon, Young H. (Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Ahn, Kwang-Ho (Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Chang, Hyang-Youn (University of Science & Technology)
Kim, Weon-Jae (Environmental and Plant Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korean Society of Environmental Engineers / v.38, no.9, 2016 , pp. 482-496 More about this Journal
Abstract
Algal blooms of cyanobacteria (blue-green Algae) due to the eutrophication of rivers and lakes can cause not only the damage by its biological toxins but also the economic loss in drinking water treatment. The natural algae coagulant, a commercial product known as W.H. containing the algicidal and allelopathic material derived from oak, can control algal problems proactively through the coagulation flotation process. However, because there have been no applications of the process for pre-treatment in drinking water plants, we could find no report on the optimum injection dose of W.H.. In this study, we have conducted several sets of jar-tests while changing W.H. dose and concentration of chl-a for (1) Han-river samples and (2) subcultured cyanobacteria samples, and monitored the removal mechanisms of algae intensively. Based on these jar-test results, two linear equations with variables of chl-a and turbidity have been deduced to predict the optimal W.H. dose after the multiple regression analysis using IBM-SPSS. Also, prototypes of automatic control logic have been suggested to inject the optimal W.H. dose promptly in response to the variation of water quality.
Keywords
Natural Algae Coagulant; Coagulation.Flotation Process; Optimal Dose; Algae; Cyanobacteria;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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