Removal of anilinic compounds using the NF-97 membrane: Application of the solution-diffusion and SKK models

  • A. M. Hidalgo /
  • M. Gómez /
  • M. D. Murcia /
  • E. Gómez /
  • G. León /
  • A. Sánchez
Journal ar
Separation Science and Technology (Philadelphia)
  • Volumen: 51
  • Número: 14
  • Fecha: 21 septiembre 2016
  • Páginas: 2429-2439
  • ISSN: 15205754 01496395
  • Tipo de fuente: Revista
  • DOI: 10.1080/01496395.2016.1209521
  • Tipo de documento: Artículo
  • Editorial: Taylor and Francis Inc.325 Chestnut St, Suite 800PhiladelphiaPA 19106
© 2016 Taylor & Francis.In the present work, the characterization of the polyamide membrane NF-97 has been carried out studying its behaviour in the treatment of effluents that contain anilinic compounds. High rejection coefficients with a maximum value of 94.72% for aniline, 79.83% for 4-chloroaniline, and 63.63% for 4-nitroaniline were obtained with operating pressures of about 30 bar and pH values between 3 and 4. The fouling parameter based on solute permeate flux was higher than that for the solvent permeate flux and higher for magnesium chloride. Lastly, experimental data were fitted to the Solution-Diffusion model and to the simplified model of Spiegler¿Kedem¿Katchalsky.

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