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(a) Filtered solutions of OMWW, resulting from batch tests with Purosorb™PAD428 resin. (b) Residual concentrations of chemical oxygen demand (COD) and total polyphenols, at adsorption equilibrium, for the Purosorb™PAD428 resin. (c) Removal efficiency for COD and total polyphenols, at adsorption equilibrium, for the Purosorb™PAD428 resin. Mean values (n = 5) ± SD were calculated.
