Advanced water treatment of high turbid source by hybrid module of ceramic microfiltration and activated carbon adsorption: Effect of organic/inorganic materials |
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Authors: | Hyuk Chan Lee Jin Yong Park Do-Young Yoon |
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Affiliation: | (1) Department of Environmental Sciences & Biotechnology, Hallym University, Gangwon, 200-702, Korea;(2) Department of Chemical Engineering, Kwangwoon University, Seoul, 139-701, Korea |
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Abstract: | We investigated the effect of organic or inorganic materials on membrane fouling in advanced drinking water treatment by hybrid
module packed with granular activated carbon (GAC) outside a tubular ceramic microfiltration membrane. Instead of natural
organic matters (NOM) and fine inorganic particles in the natural water source, synthetic water was prepared with humic acid
and kaolin. Concentrations of kaolin or humic acid were changed to see effects of inorganic or organic matter. And periodic
water-back-flushing using permeate water was performed during 10 sec per filtration of 10 min. As a result, both the resistance
of membrane fouling (R
f
) and permeate flux (J) were influenced higher by concentration of humic acid rather than kaolin. It was proved that NOM like
humic acid could be a more important factor on membrane fouling in drinking water treatment than fine inorganic particles.
Treatment efficiencies of turbidity and UV254 absorbance were very high above 97.4% and 92.0%, respectively.
This article is dedicated to Professor Chang Kyun Choi for celebrating his retirement from the School of Chemical and Biological
Engineering, Seoul National University. |
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Keywords: | Hybrid Module Ceramic Membrane GAC Microfiltration Water Treatment |
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