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Updated: Jun 23, 2025

Electrochemically and Bioelectrochemically Induced Ammonium Recovery
Published on: January 22, 2015
Model-based development of cell voltage control system for modified bio-electro-Fenton process
Minkyung Kim1, Moonil Kim1, Fenghao Cui2
1Department of Civil and Environmental System Engineering, Hanyang University ERICA, 55 Hanyangdaehak-ro, Ansan, Kyeonggido 426-791, Republic of Korea.
Abstract:
A modified bio-electro-Fenton (M-BEF) process with a cell voltage control system that improves the efficiency of organic removal and energy savings is demonstrated. The M-BEF process can accomplish bioelectricity generation, H2O2 production, and the Fenton reaction in a continuous-flow reactor. During synthetic wastewater treatment containing biodegradable (glucose) and recalcitrant (biphenyl) organic matter, the effluent chemical oxygen demand (COD) concentration was maintained between 2 and 6 mg L-1. To investigate the impact of different operating schemes on energy usage, model-based design (MBD) modeling and simulations were performed, which showed that COD removal efficiency without an external voltage supply was unstable at < 70 %. The automatic cell voltage control system saved 90 % of the power compared to the continuous cell voltage supply system. Further testing on more environmental samples and pollutants will enable real-time optimization of supplied power and wastewater treatment using the cell voltage control system.
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