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http://dx.doi.org/10.12652/Ksce.2017.37.2.0475

Removal of Geosmin and 2-methylisoborneol in Drinking Water by Powdered Activated Carbon  

Chae, A Na (KIST, Korea Institute of Science and Technology)
Shin, Jae Won (KIST, Korea Institute of Science and Technology)
Cho, Kang Woo (Pohang University of Science and Technology)
Lee, Byung Chan (Suncheon Jeil College)
Song, Kyung Guen (KIST, Korea Institute of Science and Technology)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.37, no.2, 2017 , pp. 475-483 More about this Journal
Abstract
Geosmin and 2-methylisoborneol (2-MIB) produced by cyanobacteria during algal blooming in surface water are the major taste-and-odor-causing compounds in drinking water and need to be removed. Activated carbon is often used in treatment plants for the mitigation of odor problem. However, there is a lack of information on the effect of pore size distribution and particle size of activated carbon for adsorption of both odor compounds. Therefore, we studied the effect of pore size distribution and particle size of activated carbon on the adsorption of geosmin and 2-MIB. When comparing the adsorption of geosmin and 2-MIB between activated carbon fiber (ACF), powdered activated carbon (PAC) and granular activated carbon (GAC), the order of removal efficiency was PAC > ACF > GAC. As a result of comparing PACs with various pore distribution characteristics, well-developed micropores on activated carbon were found to be favorable for adsorption of geosmin and 2-MIB. For particle size, smaller was more effective for adsorption of geosmin and 2-MIB.
Keywords
Geosmin; 2-methylisobomeol (2-MIB); Powdered Activated Carbon (PAC); Adsorbents; Water Treatment;
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