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Development and Application of Modified Intermittently Aeration mode for Advanced Phase Isolation Ditch (APID) process at Winter Season  

Kwak, Sung-Keun (Environmental Business Division, Taiwha Lease Industrial Co., Ltd)
An, Sang-Woo (Department of Civil and Environmental engineering, Hanyang University)
Chung, Mu-Keun (Environmental Business Division, Taiwha Lease Industrial Co., Ltd)
Park, Jae-Ro (Construction Environment Research Division, Korea Institute of Construction Technology)
Park, Jae-Woo (Department of Civil and Environmental engineering, Hanyang University)
Publication Information
Journal of Korean Society on Water Environment / v.25, no.6, 2009 , pp. 872-878 More about this Journal
Abstract
Advanced Phase Isolation Ditch (APID) process was studied to develop economic retrofitting technology, for the plants where retrofitting of common activated sludge process is required. In this study, to develop and apply the modified intermittently aeration mode as process control conditions for treating municipal wastewater, a demonstration plant was installed and operated in the existing sewage treatment plant of P city. During this study, the average effluent $BOD_5$, SS, T-N, and T-P concentrations were 6.3, 4.5, 10.0, and 1.3 mg/L. The modified mode decreased the nitrification capability more than the conventional mode in the application period. Nitrate in the anaerobic condition can have a negative effect on biological phosphorus removal. In the decreasing nitrate levels, the modified mode increased the biological ability of removal phosphorus more than the conventional mode in this study. Therefore, newly developed APID process with modified intermittent aeration mode can be one of the useful processes for stable organic matter and nutrients removal.
Keywords
BNR; Intermittently aeration; Nitrogen; Phosphorous; Winter season;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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