Polyamide nanofiltration membranes to remove aniline in aqueous solutions

  • A. M. Hidalgo /
  • G. León /
  • M. Gómez /
  • M. D. Murcia /
  • M. D. Bernal /
  • S. Ortega
Journal ar
Environmental Technology (United Kingdom)
  • Volumen: 35
  • Número: 9
  • Fecha: 03 mayo 2014
  • Páginas: 1175-1181
  • ISSN: 09593330 1479487X
  • Tipo de fuente: Revista
  • DOI: 10.1080/09593330.2013.864338
  • Tipo de documento: Artículo
Aniline is commonly used in a number of industrial processes. It is known to be a harmful and persistent pollutant and its presence in wastewater requires treatment before disposal. In this paper, the effectiveness of nanofiltration (NF) to remove aniline from aqueous solutions is studied in a flat membrane test module using two thin-layer composite membranes of polyamide (NF97 and NF99HF). The influence of different operational variables (applied pressure, feed concentration and pH) on the removal of aniline from synthetic aqueous solutions was analysed. The experimental NF results are compared with results previously obtained by reverse osmosis. Based on this comparative study, the effective order for aniline rejection is: HR98PP>NF97>DESAL3B>SEPA- MS05>NF99HF. © 2013 © 2013 Taylor & Francis.

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