Electrochemical Pretreatment of Wastewater from DDNP Production Using BDD Thin Film Electrode

Abstract:

The electrochemical oxidation of wastewater from DDNP production was investigated using a boron-doped diamond (BDD) thin film electrode. The effects of operating factors such as cell voltage, interelectrode distance and additive NaCl have been studied. This study showed that the chemical oxygen demand (COD) reduction is most influenced by the applied cell voltage. Higher current densities resulting from higher cell voltages increase the formation of oxidative reagents resulting in an increased COD removal rate. The maximum COD removal was 57% after 210 min, with an energy consumption of 14.90 KWh·kg^-1 COD when cell voltage was 12V, interelectrode distance was 3cm and additive NaCl concentration was 1g·L-1. The use of BDD thin film electrode for the treatment of DDNP production wastewater appears commercially feasible.

• Periodical: Advanced Materials Research (Volumes 255-260)
• Pages: 2962-2966
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.255-260.2962
• Online since: May 2011
• Authors: Rong Gui Fan, Chun E Li, Yong Xin Bai, Da Qing Huang, Liao Wei Fang, Hong Xing Liang, Quan Cheng Wang
• Keywords: BDD Thin Film Electrode, DDNP Production Wastewater, Electrochemical Oxidation, Wastewater Treatment

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