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http://dx.doi.org/10.15681/KSWE.2011.27.2.9

A Study on the Performance Improvement of Flash-Mixer in Water-Treatment Plant  

Cho, In-Jun (Korea water Resources Corporation)
Oh, Sang Han (School of Mechanical Engineering, University of Ulsan)
Lee, Sang Wook (School of Mechanical Engineering, University of Ulsan)
Son, Chang Ho (School of Mechanical Engineering, University of Ulsan)
Chung, Wui Jun (School of Mechanical Engineering, University of Ulsan)
Publication Information
Journal of Korean Society on Water Environment / v.27, no.2, 2011 , pp. 210-217 More about this Journal
Abstract
In results of accomplishing fundamental study to improve the flocculant-mixing of the Flash-Mixer in Onsan Water-Treatment Plant at the small cost, We obtained 8.9% of mixing-efficiency from the field data and 3.2% of the characteristic flow-ratio as the available maximum volume-ratio in this Water-Treatment Plant. The optimum elements with the deflector diameter of 400 mm and deflector angle of $145^{\circ}$ at the flow ratio of 3.2% could be obtained from the expanded study on the ground of the fundamental study. Finally, the efficiency could be improved about 510% from 8.9% to 45.4% and the average turbidity could be improved about 14%.
Keywords
CFD; Field-data; Flow-Ratio; Mixing-Efficiency; Mixing-Strength; Zeta-Potential;
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