Aeration reactor with flow control
US5639371A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 9, 1996 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | Apr 9, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
In the aeration reactor described in the specification, an aeration basin has two aeration cells separated by a dividing curtain and connected in series so as to normally receive wastewater in the first aeration cell and then pass the wastewater to the second aeration cell which is followed by a clarifier to separate sludge from the treated wastewater. A liquid level detector in the reactor responds to surges in the rate of flow of the wastewater through the reactor to redirect incoming wastewater and return sludge from the first aeration cell into the second aeration cell and isolate the first aeration cell to preserve active sludge in that cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.