Korean Membrane Journal

The Membrane Society of Korea (한국막학회)
권호 표지

Nanofiltration of Dyeing Wastewater Using Polyamide Ro-Membranes after the Pretreatment with Chemical Coagulants

  • Hwang Jeong-Eun (Membrane and Separation Research Center, Korea Research Institute of Chemical Technology) ;
  • Jegal Jonggeon (Membrane and Separation Research Center, Korea Research Institute of Chemical Technology) ;
  • Mo Joonghwan (School of Materials Science & Engineering, Seoul National University) ;
  • Kim Jaephil (School of Materials Science & Engineering, Seoul National University)
  • Published : 2005.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

Nanofiltration (NF) of a dyeing wastewater was carried out using polyamide NF-membranes. Before applying the wastewater to the membrane process, it was pretreated with various chemical coagulants such as alum, ferric chloride and HOC-100A. In order to see the effect of the pretreatment of the wastewater using chemical coagulants on the membrane separation process, the optimum conditions for the coagulation and sedimentation process using the chemical coagulants were sought. By the pretreatment, despite the different coagulants used, the chemical oxygen demand (COD) and UV-absorbance of the wastewater were lowered by more than $70\%$. The pretreated wastewater was then applied to the membrane process. The effect of the coagulants used for the pretreatment on the membrane fouling was studied. From this study, it was found that the HOC-100A was the best out of the coagulants used far the removal of the materials that could cause membrane fouling.

Keywords

References

  1. V. K. Gupta, D. Mohan, S. Sharma, and M. Sharma, Sep. Sci. Technol. 35, 2097 (2000) https://doi.org/10.1081/SS-100102091
  2. U. Pagga and K. Taeger, Water Research, 25, 1051 (1994)
  3. P.C. Vandevivere, R. Bianchi, and W. Verstraete, Journal of Chemical Technology and Biotechnology 72, (4), 289 (1998) https://doi.org/10.1002/(SICI)1097-4660(199808)72:4<289::AID-JCTB905>3.0.CO;2-#
  4. A. Rozzi, F. Malpei, L. Bonomo, and R. Bianchi, Water Science and Technology, 39(5), 121 (1999) https://doi.org/10.1016/S0273-1223(99)00093-1
  5. J. N. Wu, M. A. Eiteman, and S. E. Law, Journal of Environmental Engineering ASC, 124(3), 272 (1998) https://doi.org/10.1061/(ASCE)0733-9372(1998)124:3(272)
  6. M. Marcucci, G. Nosenzo, G. Capannelli, I. Ciabatti, D. Corrieri, and G. Ciardelli, Desalination 138, 75 (1970) https://doi.org/10.1016/S0011-9164(01)00247-8
  7. K. Treffry-Goatley, C. Buckley, and G. Groves, Desalination 47, 313 (1983) https://doi.org/10.1016/0011-9164(83)87086-6
  8. E. M. Vrijenhoek, S. K. Hong, and M. Elimelech, Membrane Sci., 188(1), 115 (2001) https://doi.org/10.1016/S0376-7388(00)00586-X
  9. M. Manttari, L. Puro, J. Nuortila-Jokinen, and M. Nystrom, Membrane Sci., 165(1), 1 (2000)