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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2015.25.6.524

Transmembrane Pressures with Respect to Backwashing and Sinusoidal Flux Continuous Operation Modes for the Submerged Hollow Fiber Membrane in the Activated Sludge Solution  

Jeong, Doin (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
Jung, Seung Hee (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
Lee, Sohl (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
Chung, Kun Yong (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
Publication Information
Membrane Journal / v.25, no.6, 2015 , pp. 524-529 More about this Journal
Abstract
In this study transmembrane pressure (TMP) was measured with respect to operational time by applying the sinusoidal flux continuous operation (SFCO) for the hollow fiber membrane. The hollow fiber module which has $100cm^2$ of effective area and $0.45{\mu}m$ nominal pore size was submerged in the activated sludge solution of MLSS 5,000 mg/L. The critical permeate flux was measured as $26.6L/m^2{\cdot}hr$ by the method of continuous flux step change. TMPs of the filtration/relaxation (FR), FR with backwashing (FR/BW) and SFCO modes were measured. The SFCO mode was more effective than FR and FR/BW modes below the critical permeate flux such as 15, 20 and $25L/m^2{\cdot}hr$. However, the FR/BW was confirmed as more effectively fouling controlled mode than SFCO mode above the critical permeate flux.
Keywords
MBR; TMP; hollow fiber membrane; critical flux; sinusoidal permeate flux; backwashing;
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Times Cited By KSCI : 6  (Citation Analysis)
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