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Hybrid Water Treatment of Tubular Ceramic MF and Photocatalyst Loaded Polyethersulfone Beads : Effect of Organic Matters, Adsorption and Photo-oxidation at Nitrogen Back-flushing  

Hong, Sung Taek (Department of Environmental Sciences & Biotechnology, Hallym University)
Park, Jin Yong (Department of Environmental Sciences & Biotechnology, Hallym University)
Publication Information
Membrane Journal / v.23, no.1, 2013 , pp. 61-69 More about this Journal
Abstract
The effect of humic acid (HA), and the roles of microfiltration (MF), PES (polyethersulfone) beads adsorption, and photo-oxidation were investigated in hybrid process of ceramic MF and PES beads loaded with titanium dioxide ($TiO_2$) photocatalyst for advanced drinking water treatment. Those were compared and studied in viewpoints of membrane fouling resistance ($R_f$), permeate flux (J), and total permeate volume ($V_T$). Because membrane fouling increased dramatically as decreasing HA, $R_f$ increased and J decreased, and finally $V_T$ was the highest at 2 mg/L HA. In the experiment to investigate the roles of photo-oxidation and adsorption at humic acid 4 mg/L and 6 mg/L. In both conditions, $R_f$ was the lowest and $V_T$ was the highest in MF + $TiO_2$ + UV process. The average treatment efficiencies of turbidity and dissolved organic matters were the highest in MF + $TiO_2$ + UV process, too.
Keywords
ceramic membrane; photocatalyst; hybrid process; microfiltration; water treatment;
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Times Cited By KSCI : 2  (Citation Analysis)
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