Method and device for continuously treating waste water of industrial origin by water vapour stripping
US7402192B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2001 |
| Grant date | Jul 22, 2008 |
| Priority date | — |
| Expiry date | Dec 21, 2022 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2209/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a method characterised in that it consists in: determining online at least an ultraviolet spectrum portion of at least one of the compounds present in one or the other of the waste water feeding circuits (7, 13) or of the column (8) waste water output (16); qualitatively and quantitatively determining, by mathematical processing of the measured intensity levels, at least a contaminant present in the samples; on the basis of the results obtained and by comparing with pre-defined setpoint values, in restoring said data in the form of electric signals, which control the waste water supply and the stripping column water vapour flow rates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.