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Effect on Particle Size of Activated Carbons for Coagulation and Adsorption  

Kim, Young-Il (수자원공사 수자원연구원 상하수도연구소)
Bae, Byung-Uk (대전대학교 환경생명공학과)
Publication Information
Journal of Korean Society of Water and Wastewater / v.20, no.5, 2006 , pp. 719-726 More about this Journal
Abstract
Adsorption isotherms and kinetics for taste and odor (T&O) compounds and natural organic matters (NOMs) were performed to evaluate the impacts of activated carbon particle size on coagulation and adsorption. Adsorption capacities for iodine, T&O compounds, and NOM of all the activated carbons under #325 mesh were more excellent than those of virgin activated carbons. Small activated carbon particles were more rapidly adsorbed low molecular weight T&O compounds in the water, while those were slowly adsorbed high molecular weight NOM. When the activated carbon and alum were added simultaneously, the adsorption capacity for organics was better than alum was added alone.
Keywords
Activated carbon; Particle size; Taste and odor(T&O); Natural organic matter(NOM); Adsorption; Coagulation;
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