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Removal of textile-based dyes by nanofiltration: study of physicochemical parameters’ effect on the retention by experimental designs methodology.

Kelewou, Hodabalo; Lhassani, Abdelhadi; Merzouki, Mohammed; Drogui, Patrick (2015). Removal of textile-based dyes by nanofiltration: study of physicochemical parameters’ effect on the retention by experimental designs methodology. Desalination and Water Treatment , vol. 54 , nº 6. p. 1735-1746. DOI: 10.1080/19443994.2014.890132.

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Résumé

This paper focuses on nanofiltration (NF) process mainly in the retention of colored effluents chemicals and dyes as they are rejected from textile plants. The purpose of this work is to study the effect of initial dye concentration, pH, salt presence, conversion rate, and transmembrane pressure (PTM) on Basic Green 4 and Basic Yellow 2 retention by NF. Tangential filtration mode through a composite membrane NF270 type Dow FILMTEC was used in the experiments. Experimental designs such as full factorial design and Box–Behnken matrix were used. Tests have shown that the pH, the conversion rate, and salt concentration have a negative influence on Basic Green 4 and Basic Yellow 2 retention. By comparison, the PTM and initial dye concentration have a positive effect on the retention of these dyes. Finally, the retention rate for Basic Yellow 2 and Basic Green 4 was higher than 90% in our study.

Type de document: Article
Mots-clés libres: experimental design; membrane; modeling; nanofiltration; retention; textile dye
Centre: Centre Eau Terre Environnement
Date de dépôt: 23 avr. 2018 14:04
Dernière modification: 23 avr. 2018 14:04
URI: http://espace.inrs.ca/id/eprint/3870

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