Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Basic Study for Development of Denitrogenation Process by Ion Exchange(III) - A kinetic study in the batch reactor -

이온교환법에 의한 탈질소 공정개발의 기초연구(III) - 회분식 반응기에서의 반응속도론-

  • Published : 2000.04.01
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Abstract

A kinetic study for anion exchange was performed for commercially available Cl- type anion exchange resin in use to remove nitrate in water. The obtained results from the batch reactor were applied to the Langmuir and Freundlich models. The constants for Lagmuir model were qmax =29.82 and b=0.202, and for Freundlich model were K=5.509 and n=1.772. Langmuir model showed betterfit than Frendlich model for the experimental results. Ion exchange reaction rate was also calculated and the the approximate first-order reaction, rate constant k1 was 0.16 L/mg.hr. Effective diffusion coefficient was obtained in the range from $9.67$\times$10^{-8} cm^2/sec$ for initial concentration change, and from $6.09$\times$10^{-7} to 3.98$\times$10^{-6} cm^2/sec$ for reaction temperature change. Activation energy during the diffusion was calculated as 26 kcal/mol.

Keywords

References

  1. J. Environ. Eng. v.123 no.4 Nitrate removal from drinking water Kapoor, A;T. Virraghavan
  2. In Paper presented at EPA seminar on Nitrate in Groundwater Nitrate Removal from Drinking Water Sorg T. J.
  3. GWF-Wass. Abwass. v.125 Grundwasser-belastung mit nitrat-ursachen, bedeutung losung-swege Sontheimer H;U. Rohmann
  4. 한국생명과학회지 v.7 no.2 이온교환법에 의한 탈질소공정개발의 기초연구 -I. 회분식 실험- 채용곤;이동환;김장일;윤태경;주창식;이민규
  5. 한국환경과학회지 v.7 no.1 이온교환법에 의한 탈질소공정개발의 기초연구(II) 이민규;주창식;윤태경;채용곤;이동환;오영희
  6. Mass Transfer in Heterogeneous Catalysis Satterfield, C. N.
  7. Kaguku Kogaku v.36 Kawazoe, K.;T. Kawai
  8. J. Chem. Eng. v.7 Mass transfer in adsorption on bidisphere porous materials Kawazoe, K.;Y. Takeuchi
  9. The Mathmatics of Diffusion Crank, J.
  10. 吸着の基礎と設計 北川浩;鈴木謙一郞
  11. Ion Exchange Helfferich, F
  12. J. Amer. Chem. Soc. v.69 The exchange adsorption of ions from aqueous solutions by organic zeolite(I) Boyd, G. E.;J. Schubert;A. W. Adamson
  13. J. Chem. Technol. Biotechnol. v.53 Prediction of binary component isotherms for adsorption of heterogenous surfaces Al-Duri, B.;Y. Khader;G. Mckay
  14. J. Amer. Chem. Soc. v.69 The exchange adsorption of ion from aqueous solutions by organic zeolites(II) Boyd, G. E.;A. W. Adamson;L. S. Myers
  15. Physicochemical Processes for Water Quality Control Weber, W. T.,Jr.