| Abstract |
| This study was carried out to treat the aqueous solutions containing reactive dyes(RB19, RR120 and RY179) by adsorption process using activated carbon fiber(ACF). And the changes of Trihalomethane Formation Potential(THMFP) in the model experimental system was investigated. ACF(A-15) has much larger specific surface area(1,584m2/g-ACF) in comparison with granular activated carbon adsorbent(F400, 1,125m2/g-GAC), which is commonly used, and most of pores were found to be micropores with pore radius of 2nm and below. It was found that RY179 has highest THMFP, and RB19 was most easily adsorbed among the dyes in this study. Increase and decrease of THMFP concentrations were observed before and after adsorption of reactive dyes on ACF(A-15). THMFPs per unit TOC were significantly decreased after adsorption of reactive dyes. And 70% of THMFP was decreased in adsorbed dye(RY179) solution. In the case of PCP(p-chlorophenol) and sucrose, which are single component adsorbate, adsorption capacities of ACF(A-15) were in good agreement with the batch adsorption measurement, and saturation time predicted of ACF columns for these components was also well agreed with practically measured time. But in the case of reactive dyes, which have relatively high molecular weight and aggregated with multi-components, adsorption capacities or saturation time predicted were not agreed with practically measured values. |
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| Key Words |
| adsorption, THMFP, reactive dyes, ACF |
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