Self-cleaning electro-reaction unit for wastewater treatment and related process
US9216918B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | Dec 22, 2015 |
| Priority date | — |
| Expiry date | Apr 1, 2032 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2303/22
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The present invention relates to the treatment of wastewater by electrochemical reactions. More particularly, an Electro-Reaction Unit (ERU) is disclosed. The ERU is provided with at least one electrolytic cell comprising a pair of self-cleaned electrodes for purifying wastewater. Along with electro-reactions, electrodes of the ERU are submitted to passivation, i.e. coverage with an oxide layer. The present invention provides a solution for alleviating passivation with a self-cleaning system comprising hard elements, confined in a cage and movable therein, for bombardment of the electrodes and rupture of the oxide layer. The present invention further provides a related process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.