Abstract
C.I. Acid Red 73 (AR73) wastewater was treated by cross-flow nanofiltration coupling electro-catalytic oxidation using an NF90 membrane and a Ti/SnO2–Sb anode prepared via electrodeposition. Experiments conducted for standard electrochemical degradation of AR73 studied the reaction rate of removing AR73 using the Ti/SnO2–Sb anode. A computational fluid dynamics (CFD) model was developed to predict the permeate flux under a laminar flow regime, including the effects of operating pressure, applied potential, initial concentration, and cross-flow velocity on this coupling process. The variations of the membrane surface concentration and permeate flux along the length of the channel were quantified. The experimental results were compared with those predicted by the model, and they agreed well.
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