Study on the Desalination and Regeneration Performance of PBA/AC Electrode Enhanced by MCDI

Abstract

The research focuses on desalting and regenerating wastewater using membrane capacitive deionization (MCDI) systems with Prussian blue analog and activated carbon electrodes in batch experiments. The experimental results show that the optimized operational parameters for achieving superior deionization regeneration performance in membrane capacitors comprise a voltage magnitude of −1.6 V, a desorption flow rate of 30 mL min⁻¹, and an electrode regeneration duration of 25 min. The MCDI system achieves a desorption amount of 45.87 mg g⁻¹, a remarkable regeneration rate of 99.23 % under the optimized operating conditions. The MCDI system demonstrates a desorption amount and regeneration rate that are 22.56 mg g⁻¹ and 17.47 % higher, respectively, compared to the traditional capacitive deionization system.