Electrochemical Treatment of Synthetic Wastewaters Contaminated by Organic Pollutants at Ti4O7 Anode. Study of the Role of Operative Parameters by Experimental Results and Theoretical Modelling
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2022-02-18 |
| Journal | ChemElectroChem |
| Authors | Yongyong Hao, Pengfei Ma, Hongrui Ma, Federica Proietto, Claudia Prestigiacomo |
| Institutions | Shaanxi University of Science and Technology, Taiyuan University of Technology |
| Citations | 4 |
Abstract
Section titled āAbstractāAbstract In the last years, an increasing attention has been devoted to the utilization of anodic oxidation (AO) technologies for the treatment of wastewater polluted by recalcitrant organics. Recently, Ti 4 O 7 was proposed as a promising anode for AO for the treatment of various organics. Here the potential utilization of commercial Ti 4 O 7 anodes has been evaluated considering the electrochemical treatment of synthetic wastewater contaminated by three very different organic molecules (namely, oxalic acid, phenol and Acid Orange 7), all characterized by a very high resistance to AO. The performances of Ti 4 O 7 were compared with that of two largely investigated anodes: Boronādoped diamond (BDD), which is probably the most effective electrode for AO, and an Irābased anode which presents a relatively low cost. Moreover, the effect of various operative conditions (current density, mixing rate and initial concentration of the organic) was evaluated by both experimental studies and the adoption of a theoretical model previously developed for BDD anodes. It was shown that the performances of the process can be improved by a proper selection of operative conditions. Moreover, it was found that the proposed model can be effectively used to predict the effect of operative parameters at Ti 4 O 7 anodes, thus helping the process optimization.