Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Adsorption and Desorption Characteristics of Toluene in Modified Activated Carbon Using Microwave Irradiation

마이크로파를 이용한 탈착시스템에서 개질화 된 활성탄의 흡.탈착 특성

  • Kim, Beom-Jun (Department of Energy and Environmental Science, Keimyung University) ;
  • Choi, Sung-Woo (Department of Energy and Environmental Science, Keimyung University)
  • 김범준 (계명대학교 에너지환경과학과) ;
  • 최성우 (계명대학교 에너지환경과학과)
  • Published : 2008.05.30
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Abstract

This paper describes the adsorption/desorpton efficiency of a modified activated carbon by irradiated microwave to treat toluene. By employing microwave energy, the regeneration time was considerably shortened compared with conventional thermal heating regeneration. New adsorbent called ACB (Activated Carbon-Bentonite) was prepared from powder activated carbon with mixing bentonite as a binder. Specific surface area, average pore size and total pore volume of ACB were calculated from the nitrogen adsorption/desorption isotherm. The surface of ACB was characterized with scanning electron microscope(SEM). The results showed that the specific surface area, total pore volume, average pore size of ABC was not influenced by regenerating cycle with microwave irradiation. Toluene was adsorbed onto ACB which desorbed by MW irradiation. Absorption capacity of ACB was 0.117 $g_{toluene}/g_{ACB}$. Desorption efficiency of toluene increased as higher microwave output was applied.

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References

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