DECOLORATION PAR NANOFILTRATION D'EFFLUENTS CONTENANT DES ENCRES POUR STYLOS: ETUDE ET QUALIFICATION DU PROCEDE-MISE EN OEUVRE INDUSTRIELLE DECOLORATION BY NANOFILTRATION OF EFFLUENTS CONTAINING FOUNTAIN-PEN INKS: PILOT SCALE QUALIFICATION - INDUSTRI

摘要

The study deals with the treatment, by nanofiltration, of effluents generated after rinsing the vats used for the manufacture of inks (pen cartridges). The first part of the study (bibliographica) shows that membrane processes are operational in different industrial areas for the decoloration of effluents but the number of nanofiltration plants is still limited. In the second part (experimental0 two tubular organic membranes (Koch-Weizmann MPT20 an MPT31), selected according to their molecular weight cut-off (450 dalton) and their resistance to solvents and acid solutions, are performed and compared.