Discoloration of water loaded with vat dyes by the membrane process of ultrafiltration

During the present study,we conducted a research which is to develop an organic and asymmetric membrane polysulfonepsu udel p1700 by the technique of phase inversion,and to apply this film active supported in the discoloration of wastewater loaded with templates of vat dyes; indigo and sulphur black,while using and optimizing the treatment of effluents from textile finishing by ultrafiltration. according to the optimization and characterization of the hydrodynamic conditions of the membrane obtained,we purified directly the colored solutions models of water. the results of the optimization of the membranes showed that the synthesized membranewith a more efficient mechanical and hydraulic properties in percentage by weight of polymer psu is of the order of 12%on the one hand,and those obtained for the purification of water colored by ultrafiltration have showed that the rate of discoloration is calculated in the range of 80.36% forthe indigo and of the order of 60.78%for the blacksulphur to the other. © 2016.