Facilitated extraction and recovery of Methylene Blue and Blue P3R dye by affinity polymer membranes containing chitin as new extractive agent

Y. Chaouqi*, R. Ouchn, M. Hlaibi, Université Hassan II Casablanca; O. Cherkaoui, M. El Bouchti, ESITH Casablanca - REMTEX, Morroco; A. Jada, Institut de Sciences des Matériaux de Mulhouse, France

Treatment of colored wastewater from the textile industry is essential to minimize damage to the environment. Various methods based on the adsorbents, biological degradation, coagulation-flocculation, oxidation of Fenton, membrane separation, oxidation with ozone, were used to remove dyes from aqueous solutions. In the present work, according to the phase inversion technique, we have developed polymer inclusion membranes (PIMs) based on polymer supports polyvinylidene fluoride (PVDF) and polyvinyl pyrrolidone (PVP), with chitin as extractive agent (EA). These PIMs have been used to study the facilitated extraction and recovery of the Methylene Blue (MB) and Blue P3R dyes from simulated aqueous textile solutions. FT-IR spectra and SEM micrographs of these membranes were recorded to explore composition, structure and morphology of the elaborated PIMs. The adoption of the kinetic and thermodynamic models based on the Fick's laws, and the saturation law of the EA by the substrate (dyes) were tested to explain the performance of each membrane and the mechanism of the studied process for the recovery of dyes from water. The overall data indicate that...

Session: M6 - Process and Waste Water Treatment I
Day: 15 March 2018
Time: 10:45 - 12:00 h

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