Nanofiltration: ion exchange system for effective surfactant removal from water solutions
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 sol...
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| Format: | Article |
| Language: | English |
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Brazilian Society of Chemical Engineering
2014-12-01
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| Series: | Brazilian Journal of Chemical Engineering |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322014000400007&lng=en&tlng=en |
| Summary: | 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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| ISSN: | 0104-6632 |