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http://dx.doi.org/10.12652/Ksce.2022.42.4.0493

Application of the Proper Air Supply Amount Based on the Influent Water Quality for the Development of Efficient Blower Control Logic in Sewage Treatment Plants  

Yeo, Wooseok (Shinhan University)
Kim, Jong Kyu (Shinhan University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.42, no.4, 2022 , pp. 493-499 More about this Journal
Abstract
The standards pertaining to the quality of discharged water in sewage treatment plants are strengthening, and accordingly, facilities in sewage treatment plants are being upgraded. In addition, the discharge water quality of sewage treatment plants must be maintained at a high level, and efficient sewage treatment plant operations have thus emerged as a very important issue. For the efficient operation of sewage treatment plants, this study applied a basic blowing amount calculation method based on sewage facilities to evaluate the required oxygen amount and blowing amount according to inflow water quality by logicizing various influencing factors. As a result of calculating the amount of air blown by applying actual April water quality data from sewage treatment plant A to the blower demand calculation developed through this study, it was found that the average amount of air blown was reduced by about 12%. When the blower demand calculation developed here is applied to an actual sewage treatment plant, the amount of air blown can be controlled based on the inflow water quality. This can facilitate the realization of an autonomous control of sewage treatment plants, in contrast to the existing sewage treatment operation method that relies on operational experience of operator. In addition, it is expected that efficient sewage treatment plants can be operated by reducing blowing amounts and power costs, which will contribute to both energy and carbon savings.
Keywords
Influent water quality; Blower control logic; Oxygen demand; Aeration volume;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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