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Permeation Characteristics of the Submerged Membrane Module Using the Rotating Disks  

Chung Kun-Yong (Department of Chemical Engineering, Seoul National University of Technology)
Cho Young-Su (Department of Chemical Engineering, Seoul National University of Technology)
Kim Jong-Pyo (Department of Chemical Engineering, Yonsei University)
Publication Information
Membrane Journal / v.16, no.1, 2006 , pp. 51-58 More about this Journal
Abstract
The permeation experiments were carried out for the submerged membrane module equipped with self-designed rotating disks in order to determine the effect of fouling reduction and the optimum operating conditions as a function of operating time. Kaolin and bentonite particles were used to prepare various concentrations of feed solution. Every experiment was continued until 60 minutes at various rotating disk speeds up to 120 rpm. The suction pressure for kaolin solutions decreased to 28% by using rotating disk to decrease the fouling. Also, the optimum permeation flux decreased as kaolin concentration increased, and became 60 to 70 LMH for 0.4 wt% of kaolin solution. The suction pressure for bentonite experiment approached to 0 mmHg at 30 LMH and above 80 rpm rotating disk speed.
Keywords
submerged plate membrane; rotating disk module; permeation characteristics; kaolin; bentonite;
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