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http://dx.doi.org/10.4491/KSEE.2016.38.6.309

A Study of Sewage Treatment with a Self-Cleaning Filtration Unit  

Mo, Sung-Young (Department of Environmental Engineering, Seoul National University of Science & Technology)
Lee, Pul-Eip (Department of Environmental Engineering, Seoul National University of Science & Technology)
Kim, Bum-Su (Technical Research Team of H-entech)
Lee, Tae-Jin (Department of Environmental Engineering, Seoul National University of Science & Technology)
Publication Information
Journal of Korean Society of Environmental Engineers / v.38, no.6, 2016 , pp. 309-316 More about this Journal
Abstract
In this study, sewage was fed with up flow direction into a reactor equipped with a screw to circulate media that had lower specific gravity than water. It was observed that the media in the reactor could be circulated by a screw with reverse flow of the sewage feeding from the top to the bottom direction. Under these conditions, concentrations of inflow and outflow pollutants were measured at the filtration unit. Experimental results revealed stable circulation of the media with a screw in the reactor. Circulation of the media in the reactor showed more efficiency in removing the pollutants (particulate matters and organics) than no circulation. The maximum removal efficiencies of suspended solid (SS), chemical oxygen demand (CODmn), and total phosphorus (T-P) were 96%, 72% and 65%, respectively. Improvements for SS, CODmn and T-P removals with circulation of media were 52.38%, 43.14% and 118.12% respectively, compared to those without circulation.
Keywords
Self-Cleaning Filteration; Media; Suspended Solid (SS); Media Circulation Time (MCT);
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Times Cited By KSCI : 6  (Citation Analysis)
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