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활성탄에 의한 Trihalomethane의 흡착

Adsorption of Trihalomethane on Activated Carbon

HWAHAK KONGHAK, April 1985, 23(2), 117-124(8), NONE
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Abstract

수돗물 중에 존재하는 발암성 유기물질인 THM(trihalomethane)을 활성탄을 이용하여 흡착·제거하기 위하여, 대표적인 THM인 클로로포름의 활성탄에 대한 흡착특성을 연구하였다. 회분흡착을 행한 결과, 활성탄에 대한 클로로포름의 흡착은 매우 신속하게 일어났으며 세공확산이 표면 확산보다 우세함을 알 수 있었다. 또한 흡착속도는 온도 및 활성탄 입자크기의 역수에 비례하여 직선적으로 증가하였다. 고정층 흡착 결과 활성탄의 크기 보다는 활성탄 층의 길이가 전체 break through curve의 모양에 크게 영향을 미침을 알 수 있었다.
The adsorption characteristics of THM on the activated carbon were studied to remove the THM in the chlorinated drinking water. Batch and column adsorption were conducted to find the limiting step of adsorption, the adsorption rate and breakthrough curve. In the batch adsorption, it was found that chloroform was adsorbed rapidly and the pore diffusion was faster than the surface diffusion. The adsorption rate was linearly increase with the temperature and the reciprocal of particle size. In the column adsorption, the breakthrough curve was more dependent on the activated carbon column length than on the activated carbon particle size.

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