Liu Z., Chen Y., Hu S., Qiu J., Meng Y., Li L., 2016, Degradation of Painting Ink Wastewater in a Tubular Reactor with Electrochemical Treatment, Chemical Engineering Transactions, 55, 85-90.
In the present study, electrochemical treatment experiments were conducted to degrade water-based printing ink wastewater. It was performed with ruthenium oxide coated titanium acting as anode and stainless steel tube as cathode. Electrolyses carried out in batch under steady conditions and operating at constant flow velocity between 0.538×10-3 and 6.129×10-3m/s. The evolution of color and COD removal, the value of pH were found to be inter-related. The kinetics for the concentration decays of the wastewater pseudo first-order reaction that is characteristic for a mass transfer controlled operation. The mass transfer coefficient kc increased with increasing flow velocity and Reynolds number. The evolution of color and COD removal, the value of pH were found to be inter-related. The effect of the parameters on current efficiency and energy cost has also been investigated. The tubular electrochemical reactor could be considered a feasible and an effective alternative system for the electrochemical treatment of water-based printing ink wastewater.
