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http://dx.doi.org/10.11001/jksww.2019.33.5.389

A study on the determination of a representative location for monitoring the dissolved oxygen concentration in a aeration tank of sewage treatment plant  

Bang, Seok-Yong (Department of Civil and Environmental Engineering, Incheon National University)
Bum, Bong-Su (Department of Human and Environmental, Kung-In Women's University)
Kim, Jin-Han (Department of Civil and Environmental Engineering, Incheon National University)
Publication Information
Journal of Korean Society of Water and Wastewater / v.33, no.5, 2019 , pp. 389-394 More about this Journal
Abstract
In order to determine the location of average concentration and distribution status of dissolved oxygen in the rectangular aeration tank of the sewage treatment plant was analyzed and the difference of dissolved oxygen concentration was remarkable at each location. Compared with the computational fluid dynamics analysis, it was found that the results were consistent with the measurement results by showing the difference of dissolved oxygen concentration between the locations. Based on the measured data, the representative location of dissolved oxygen in aeration tank was selected by using statistical analysis method and the representative location was expressed in three-dimensional coordinates(LWH : 25%, 50%, 33%) from flow direction and left wall. Also the difference between the dissolved oxygen concentration at the actual measurement location and the average concentration value of the entire aeration tank was founded, and the equations for calibrating the automatic measurement data considering the actual measurement location were calculated.
Keywords
Dissolved oxygen; Computational fluid dynamics; Monitoring; Calibration equation;
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Times Cited By KSCI : 3  (Citation Analysis)
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