Optimisation of entrapped activated carbon conditions to remove coloured compounds from winery wastewaters

▸ Immobilized activated carbon efficiently remove coloured compounds. ▸ Solutions contain 2 % of activated carbon, 5 % of Na-alginate and 0.475 M of CaCl2. ▸ Beads are easy-to-handle, a long-lived material and decrease the sealing of membranes.