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KMID : 1024520150240010065
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Journal of the Environmental Sciences
2015 Volume.24 No. 1 p.65 ~ p.71
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Adsorption Characteristics of Iodo-Trihalomethanes (I-THMs) in Granular Activated Carbon (GAC) Adsorption Process
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Son Hee-Jong
Yeom Hoon-Sik
Kim Kyung-A
Song Mi-Jung
Ryou Dong-Choon
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Abstract
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This study accessed the adsorption characteristics of the 9 trihalomethanes (THMs) on coal-based granular activated carbon (GAC). The breakthrough appeared first for CHCl3 and sequentially for CHBr2Cl, CHBr3, CHCl2I, CHBrClI, CHBr2I, CHClI2,CHBrI2, and CHI3. The maximum adsorption capacity (X/M) for the 9 THMs with apparent breakthrough points ranged from1,175 μg/g (for CHCl3) to 11,087 μg/g (for CHI3). Carbon usage rate (CUR) for CHCl3 was 0.149 g/day, 5.5 times higher than for CHI3 (0.027 g/day).
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KEYWORD
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Iodo-Trihalomethanes (I-THMs), Disinfection By-Products (DBPs), Granualr Activated Carbon (GAC), Adsorption
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