Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
권호 표지

Rejection Properties of Hydrophilic Solutes and Micro Organic Pollutants with a Hollow Fiber NF Membrane

중공사 나노여과 막분리를 이용한 친수성 용질과 미량 유기 오염물질의 배제 특성

  • Jung, Yong-Jun (Department of Environmental Engineering, Kyungpook National University) ;
  • Min, Kyung-Sok (Department of Environmental Engineering, Kyungpook National University)
  • Received : 2004.09.16
  • Accepted : 2005.01.28
  • Published : 2005.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

There has been a growing interest in NF membrane for drinking water treatment, because it can remove simultaneously both hardness and hazardous micro pollutants such as pesticides and THM precursors. In this work, a hollow fiber NF membrane known as a composite membrane was employed for the rejection properties of both hydrophilic solutes and micro organic pollutants, where the former was used to evaluate the molecular sieving effect of this membrane and the latter was employed for the investigation of solute-membrane interaction as hydrophobic materials. This membrane effectively rejected the hydrophilic solutes and the permeation of them was mainly controlled by the molecular sieving effects such as molecular weight and molecular width. In the case of all micro organic pollutants, the rejections were varied from 42.2% for Simazine to 91.6% for Malathion, and the parameters related to the steric hindrance could significantly play an important role in the rejection. In the batch type adsorption experiments, all micro organic pollutants were entrapped mildly on the membrane in spite of lower degree compared with that of aromatic compounds, and they were correlated with log K.

Keywords

References

  1. 이순화, 김지훈, 낙동강 중류수계의 변이원성과 유기오염물질의 거동에 관한 연구, 대한환경공학회지, 19(6), pp. 785-798 (1997)
  2. 정용준, 木會祥秋, 민경석, 나노여과막을 이용한 농약 배제 특성, 한국물환경학회지, 19(6), pp. 715-721 (2003)
  3. 정용준, 木會祥秋, 민경석, 중공사 나노여과막을 이용한 방향족 농약의 배제 특성, 한국물환경학회지, 20(3), pp. 296-300 (2004)
  4. Boussahel, R., Bouland, S., Moussaouri, K. M. and Montiel, A., Removal of Pesticide Residues in Water using the Nanofiltration Process, Desalination, 132(1-3), pp. 205-209 (2000) https://doi.org/10.1016/S0011-9164(00)00151-X
  5. Bruggen, B. V., Schaep, J., Maes, W., Wilms, D. and Vandecasteele, C., Nanofiltration as a Treatment Method for the Removal of Pesticides from Ground Water, Desalination, 117(1-3), pp. 139-147 (1998) https://doi.org/10.1016/S0011-9164(98)00081-2
  6. Bruggen, B., Schaep, J., Wilms, D. and Vandecasteele, C., Influence of Molecule Size, Polarity and Charge on the Retention of Organic Molecules by Nanofiltration, J. Memb. Sci., 156, pp. 29-41 (1999). https://doi.org/10.1016/S0376-7388(98)00326-3
  7. Hansh, C., Leo, A. and Hoeckman, D., Exploring QSAR Hydrophobic, Electronic, and Streic Constants, ACS, Washington, DC. (1995).
  8. Kimura, K., Army, G., Drewes, J. and Watanabe, Y., Adsorption of Hydrophobic Compounds onto NF/RO Membranes: an Artifact Leading to Over Estimation of Rejection, J. Memb. Sci., 221, pp. 89-101 (2003) https://doi.org/10.1016/S0376-7388(03)00248-5
  9. Kiso, Y., Kon, T., Kitao, T. and Nishimura, K., Rejection Properties of Alkyl Phthalates with Nanofiltration Membranes, J. Memb. Sci., 182, pp. 205-214 (2001a) https://doi.org/10.1016/S0376-7388(00)00567-6
  10. Kiso, Y., Li, H., Shigetoh, K., Kitao, T. and Jinno, K., Pesticide Analysis by High-performance Liquid Chromatography using Direct Injection Method, J. Chromatography A, 733, pp. 259-265 (1996). https://doi.org/10.1016/0021-9673(95)01058-0
  11. Kiso, Y., Sugiura, Y., Kitao, T. and Nishimura, K., Effects of Hydrophobicity and Molecular Size on Rejection of Aromatic Pesticides with Nanofiltration Membranes, J. Memb. Sci., 192, pp. 1-10 (2001b) https://doi.org/10.1016/S0376-7388(01)00411-2
  12. Kosutic, K. and Kunst B., Removal of Organics from Aqueous Solutions by Commercial RO and NF Membranes of Characterized Porosities, Desalination, 142(1), pp. 47-56 (2002) https://doi.org/10.1016/S0011-9164(01)00424-6
  13. Yasumoto, M., Shoichi, K. and Masaki, I., Advanced Membrane Technology for Application to Water Treatment, Wat. Sci. Technol., 37(10), pp. 91-99 (1998)