Proceedings of the Korean Society of Soil and Groundwater Environment Conference (한국지하수토양환경학회:학술대회논문집)
- 2001.09a
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- Pages.19-22
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- 2001
Effect of pH on the sorption and desorption of chlorinated phenols using HDTMA-montmorillonite
HDTMA-몬모릴로나이트를 이용한 염화페놀류 화합물의 흡착 및 탈착시 pH의 영향
Abstract
The effects of pH on the sequential sorption/desorption of chlorinated phenols (2-chlorophenol, 2.4-dichlorophenol and 2,4,5-trichlorophenol) in HDTMA-montmorillonite were investigated by maintaining pH 4.85 or 9.15 in the sequential batch sorption and desorption experiments. The chlorinated phenols are hydrophobic ionizable orginic compounds; they can exist as either neutral (pH << pKa) or anionic (pH >> pKa) forms. Among the tested chlorinated phenols, 2,4,5-trichlorophenol showed the highest sorption affinity at pH 4.85 as expected by the