Process and installation for the treatment of effluents by oxidation and denitrification in the presence of a heterogeneous catalyst
US5972226A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 1997 |
| Grant date | Oct 26, 1999 |
| Priority date | — |
| Expiry date | Aug 23, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F11/18
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to a process of aqueous phase oxidation of effluents, consisting of subjecting said effluents to oxidation in the presence of at least one catalyst and of at least one oxidising agent, at a temperature of between approximately 20.degree. C. and approximately 350.degree. C., under a total pressure of between approximately 1 and approximately 160 bars, in such manner as to mineralise part of the organic matter and total ammoniated nitrogen contained in said effluents, said oxidation being carried out inside a reactor in which a gaseous phase is set up above the liquid phase consisting of said effluents. characterized in that said catalyst is a heterogeneous catalyst placed inside said reactor above the interface between said gaseous phase and said liquid phase.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.