Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7044101 | Separation and Purification Technology | 2018 | 5 Pages |
Abstract
An investigation was carried out aimed at checking the feasibility of the novel bio-electro-Fenton process with FeVO4/CF cathode on advanced treatment of coal gasification wastewater. The maximum power density arrived 849.7â¯mW/m3 in MFC-FeVO4/CF system, which was corresponding to a current density of 2.6â¯A/m3 at the voltage of 326.8â¯mV. The concentration of BOD5, COD, TOC and total phenols in the cathode effluent under short-circuit conditions were 4.5â¯mg/L, 32.5â¯mg/L, 8.8â¯mg/L and 15.6â¯mg/L, respectively, which all met the class-I criteria of the Integrated Wastewater Discharge Standard. FeVO4/CF could be employed as a two-way Fenton-like catalyst that leads to the production of more reactive oxygen species. The in situ generation of Fenton-like reagents (Fe(II, V(IV) and H2O2) at the cathode was demonstrated by the cyclic voltammetry measurement. This novel process provides a cost-effective alternative to extend the practical merits of traditional MFCs and Fenton towards advanced treatment of industrial wastewater.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Filtration and Separation
Authors
Peng Xu, Hao Xu, Zhou Shi,