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Adsorption Characteristics of Pesticides in Zeolites KCI 등재

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

The adsorption characteristics of four pesticides (phosphamidon, fenitrothion, triadimefon, and diniconazole) on natural clinoptilolite (CLIN) and three synthetic zeolites were investigated. The synthetic zeolites included faujasite (FAUF) synthesized from coal fly ash; the mixture of FAU and Na-P1 (FAU + Na-P1)SF synthesized using Jeju scoria and coal fly ash at the ratio of 1.5 by weight; and waste fluid catalytic cracking catalyst (FCCW). The distribution coefficient, KD and the Freundlich constant, KF decreased in the following sequence: FCCW > FAUF > (FAU + Na-P1)SF > CLIN among the zeolites and diniconazole>fenitrothion> triadimefon> phosphamidon among the pesticides. The pesticide adsorptivity increased with increasing temperature for FAUF, (FAU+Na-P1)SF and FCCW, however, it decreased for CLIN, regardless of the type of pesticide. The adsorptivity of pesticides was independent of pH for phosphamidon, fenitrothion and triadimefon, whereas it decreased with increasing pH for diniconazole, regardless of zeolite type.

목차
Abstract
1. Introduction
2. Materials and Methods
    2.1. Materials
    2.2. Experimental methods
3. Results and Discussion
    3.1. Effect of shaking time
    3.2. Adsorption isotherms
    3.3. Effect of temperature
    3.4. Effect of pH
4. Conclusions
Acknowledgements
REFERENCES
저자
  • Chang-Han Lee(Department of Environmental Adminstration, Catholic University of Pusan)
  • Kil-Seong Kim(Research Institute of Health and Environment, Jeju Special-Governing Province)
  • Sang-Kyu Kam(Department of Environmental Engineering, Jeju National University) Corresponding author