Electro-ozonizers: A new approach for an old problem
This work focuses on the electrochemical production of ozone and its use in the degradation of pollutants contained in wastewater. To do this, the production of ozone by two commercial electrochemical cells specially designed to produce ozone (manufactured by CONDIAS GmbH) is compared, as well as th...
| Autores: | , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2020 |
| País: | España |
| Institución: | Universidad de Castilla-La Mancha |
| Repositorio: | RUIdeRA. Repositorio Institucional de la UCLM |
| OAI Identifier: | oai:ruidera.uclm.es:10578/29359 |
| Acceso en línea: | https://doi.org/10.1016/j.seppur.2020.116701 http://hdl.handle.net/10578/29359 |
| Access Level: | acceso abierto |
| Palabra clave: | Electro-ozonator Ozone Electrolysis Clopyralid Operation mode |
| Sumario: | This work focuses on the electrochemical production of ozone and its use in the degradation of pollutants contained in wastewater. To do this, the production of ozone by two commercial electrochemical cells specially designed to produce ozone (manufactured by CONDIAS GmbH) is compared, as well as their performance in the treatment of a synthetic wastewater containing Clopyralid. This treatment is also evaluated with ozone supplied by a conventional ozone generator. Results demonstrate that polymer exchange membrane (PEM) electrolyzers can produce efficiently ozone, which is consumed in the degradation of pollutants, although other oxidative pathways develop simultaneously, being co-responsible of the high efficiencies obtained. In comparing results, it was found a lower consumption of electrical energy in the production of ozone and a higher degradation and mineralization with electrochemical cells. A high percentage of the ozone produced by the electrochemical cell is used to replace the dissolved ozone that has reacted. |
|---|