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Advanced Water Treatment of High Turbidity Source by Hybrid Process of Multi-channels Ceramic Microfiltration and Activated Carbon Adsorption  

Park, Jin-Yong (Department of Environmental Sciences & Biotechnology, Hallym University)
Lee, Hyuk-Chan (Department of Environmental Sciences & Biotechnology, Hallym University)
Publication Information
Membrane Journal / v.18, no.4, 2008 , pp. 325-335 More about this Journal
Abstract
In this study, we used multi-channels ceramic membrane having larger permeate volume per unit time rather than tubular membrane. The hybrid process for advanced drinking water treatment was composed of granular activated carbons (GAC) packing between module inside and outside of multi-channels microfiltration membrane. Instead of natural organic matters (NOM) and fine inorganic particles in natural water source, modified solution was prepared with humic acid and kaolin. Kaolin concentration was fixed at 30mg/L and humic acid was changed as $2{\sim}10\;mg/L$ to inspect effect of organic matters. As a result, both resistance of membrane fouling ($R_f$) and permeate flux (J) were highly influenced by concentration of humic acid. Also, in result of water-back-flushing period (FT) effect, the shorter FT was the more effective to reduce membrane fouling and to enhance permeate flux because of frequent water-back-flushing. However, the optimal FT condition was 8 min when operating costs were considered. Then, the hybrid process using multi-channels ceramic membrane and GAC was applied to lake water treatment. As a result, average treatment efficiencies in our experiment using the hybrid process were 98.02% for turbidity, 75.64% for $UV_{254}$ absorbance, 7.18% for TDS and 84.73% for $COD_{Mn}$.
Keywords
ceramic membrane; GAC; hybrid process; microfiltration; water treatment;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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