| Chromium VI was adsorbed by maleic acid-funtionalized cellulose membranes (MACellulose) from an aqueous solution at a concentration of 200 ppm. Three different types of supports were used for the membranes: nylon mesh, polyester membrane (as primary support), and polyester fabric, which were coated by modificated cellulose microparticles (with commercial fixer). The reaction between MA-Cellulose and Chromium VI was analyzed in aqueous solution and a first order type of reaction was obtained, with a value of k' of 0.00869 with 0.99768 correlation factor. The polyester fabric membrane showed 40% higher flow rate than nylon mesh and polyester membranes, and a two-fold Cr VI adsorption capacity increase. |
full paper (pdf, 142 Kb)