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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2018.28.1.62

Transmembrane Pressures for the Submerged Flat Membrane in the Activated Sludge Solution by Circulation of the Cleaning Spherical Beads  

Jeong, Doin (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
Min, Ji Su (Department of Chemical and Biomolecular Engineering, Seoul National University of Science and Technology)
Lee, Soo Min (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.28, no.1, 2018 , pp. 62-66 More about this Journal
Abstract
In this study the cleaning spherical beads with same density as water were fabricated. Bead moving velocity was measured with respect to the aeration rate and bead concentration in water reservoir. The permeation experiments for FR (filtration and relaxation) and SFCO (sinusoidal filtration continuous operation) modes were simultaneously carried out under the condition of 1 to 3% cleaning spherical bead concentration, 20 LMH and 500 mL/min aeration rate in the MLSS 8,000 mg/L activated sludge solution. The used membrane was the $90cm^2$ effective area and $0.4{\mu}m$ nominal pore size flat membrane. The TMP (transmembrane pressure) decreased as the bead concentration increased, and was shown most effective in FR mode with 2% bead concentration.
Keywords
MBR; TMP; flat membrane; spherical beads; cleaning;
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Times Cited By KSCI : 4  (Citation Analysis)
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