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KMID : 1024520090180050501
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Journal of the Environmental Sciences
2009 Volume.18 No. 5 p.501 ~ p.508
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A Study on the Characteristics of Activated Carbons Supported Metal by Microwave Irradiation
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Kim Sung-Wook
Kim Jeung-Bae
Choi Sung-Woo
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Abstract
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In this study, the characteristics of granular activated carbon (GAC) supported metal was investigated in an area influenced by flame discharge and temperature variation during irradiating microwave. The modified GAC was formulated by impregnating metal hydroxides of nickel (Ni/GAC), barium (Ba/GAC), copper (Cu/GAC), zinc (Zn/GAC), cobalt (Co/GAC) and lanthanum (La/GAC). Ba/GAC was selected as it showed lack of spark discharge and temperature increasing aspects. Comparison of adsorption and desorption amount of GAC and Ba/GAC showed that adsorption and desorption rate of the GAC were higher than those of Ba/GAC. The results show that the presence of barium can decrease adsorption/desorption rate because of plugging pore of GAC. Toluene regeneration rate of Ba/GAC was better than that of GAC due to barium loading. Finally, GAC with barium can be controled a rapid increasing temperature and spark discharge, increased the regeneration rate of toluene during desorption by irradiating microwave.
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KEYWORD
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Granular activated carbon (GAC), Modified GAC, Microwave, Adsorption, Desorption, B.E.T, SEM
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