Method for effluent purification
US6808629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2003 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Mar 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/906
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for purifying wastewater including the step:a) rating the tanks and the aeration means on the basis of the lowest pollution load, referred to as the low load, which corresponds to the plant load during dry weather;b) running the plant during dry weather, or at low load, according to the nitrogen treatment method in a tank with biological dephosphatation;c) running the plant during wet weather, or at high load, by performing the physicochemical phosphorus treatment technique and the nitrogen treatment technique in two tanks, andd) controlling the plant by detecting the load situation it is in (high load or low load) and to adapt the operating configuration of the tanks to the actual load situation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.