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http://dx.doi.org/10.17137/Korrae.2013.21.3.82

Evaluation of Biological Organic and Nutrient Removal Performance in Intermittent MBR Systems by Computer Simulation  

Yoo, Hosik (Dept. of Environmental Energy Eng., Kyonggi University)
Rhee, Seung-Whee (Dept. of Environmental Energy Eng., Kyonggi University)
Publication Information
Journal of the Korea Organic Resources Recycling Association / v.21, no.3, 2013 , pp. 82-92 More about this Journal
Abstract
The Intermittent Aeration MBR systems have the advantage of controlling reaction time by changing aeration period and are one of economic BNR systems since these processes do not require MLSS recirculation that demands capital and operation costs. In this study, two intermittent aeration MBR systems were studied by computer simulation: an intermittent aeration MBR system that had both 1hr/1hr and 4hr/4hr aeration/unaeration periods at intermittent reactor and NEW INTERMITTENT-process that was an energy saving process and certified as a new process by Korean government. Since DO concentration reached only at 0.23mg/L at intermittent reactor when it was aerated, the Intermittent aeration MBR system having 1hr/1hr aeration/unaeration period showed simultaneous nitrification/denitrification and had the highest nitrogen and phosphorus removal efficiencies that were 57% and 55%, respectively. Since this study was based on the constant influent flow and characteristics, more studies are needed to define the operational characteristics of intermittent aeration MBR systems under dynamic influent conditions.
Keywords
Intermittent Aeration; MBR(Menbrane BioReactor); SND(simultaneous nitrification/denitrification); BNR(Biological Nutrient Removal);
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Times Cited By KSCI : 3  (Citation Analysis)
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