Method for automatically adjusting the aeration of an installation for biological treatment of waste water
US6312600A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 3, 2000 |
| Grant date | Nov 6, 2001 |
| Priority date | — |
| Expiry date | Jul 3, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The oxidoreduction potential is measured on each of a number of tanks. A data processing system analyzes the oxidoreduction potential evolution and establishes a diagnosis of the aeration/biology couple to ensure the degradation reactions of the carbonaceous and nitrogenous pollution. It is then determined whether to start, to continue, or to stop aeration in the tanks, depending on the required degree of purification. In the first tanks, priority is given to the treatment of carbonaceous pollution with specific parameter representation of the oxidoreduction potential threshold values. In the last tank, fine-tuning the treatment of the carbonaceous and nitrogenous pollution is accomplished by managing the aeration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.