Nanofiltration: ion exchange system for effective surfactant removal from water solutions

AUTOR(ES)

Kowalska, I.

FONTE

Braz. J. Chem. Eng.

DATA DE PUBLICAÇÃO

2014-12

RESUMO

A system combining nanofiltration and ion exchange for highly effective separation of anionic surfactant from water solutions was proposed. The subjects of the study were nanofiltration polyethersulfone membranes and ion-exchange resins differing in type and structure. The quality of the treated solution was affected by numerous parameters, such as quality of the feed solution, membrane cut-off, resin type, dose and the solution contact time with the resin. A properly designed purification system made it possible to reduce the concentration of anionic surfactant below 1 mg L-1 from feed solutions containing surfactant in concentrations above the CMC value.

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