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http://dx.doi.org/10.14579/MEMBRANE_JOURNAL.2017.27.1.68

Effect of GAC Packing Mass in Hybrid Water Treatment Process of PVdF Nanofibers Spiral Wound Microfiltration and Granular Activated Carbon  

Kyung, Kyu Myung (Dept. of Environmental Sciences & Biotechnology, Hallym University)
Park, Jin Yong (Dept. of Environmental Sciences & Biotechnology, Hallym University)
Publication Information
Membrane Journal / v.27, no.1, 2017 , pp. 68-76 More about this Journal
Abstract
Flat membrane with $0.4{\mu}m$ pore size was prepared with PVdF (polyvinylidene fluoride) nanofiber, which has the advantages such as excellent strength, chemical resistance, non-toxicity, and incombustibility. The spiral wound module was manufactured with the flat membrane and a woven paper. Hybrid water treatment process was composed of the PVdF nanofibers spiral wound microfiltration and granular activated carbon (GAC) adsorption column. Effect of GAC packing mass was investigated by comparing the case of recycling or discharging the treated water using the synthetic solution of kaolin and humic acid. After each filtration experiment, water back-washing was performed, and recovery rate and filtration resistances were calculated. Also, effect of GAC adsorption was compared by measuring turbidity and $UV_{254}$ absorbance. As a result, there was no effect of GAC packing mass on turbidity treatment rate; however, the treatment rate of $UV_{254}$ absorbance was 0.7~3.6% for recycling the treated water, and increased to 3.2-5.7% for discharging the treated water. In the case of recycling the treated water, reversible filtration resistance ($R_r$) and irreversible filtration resistance ($R_{ir}$) trended to decrease as increasing GAC packing mass; however, total fitration resistance ($R_t$) was almost constant, and recovery rate of water back-washing trended to increase a little.
Keywords
nanofiber; microfiltration; spiral wound; granular activated carbon; water treatment;
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Times Cited By KSCI : 7  (Citation Analysis)
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