Aeration system and method with tapered nozzle
US4224158A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1978 |
| Grant date | Sep 23, 1980 |
| Priority date | — |
| Expiry date | Oct 20, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S261/75
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An improved system for mixing gas with waste water in which the water is pumped through a plurality of mixing chambers into which the gas is injected at a step region to form parallel streams of gas and water. An extending chamber contains the parallel streams as the interface between them becomes unstable, breaks down creating vortices and produces tiny bubbles which mix with the water. The extending chamber is divided into two sections with at least the section remote from the step surface tapered inwardly at a rate of 11.degree.-22.degree. to permit operation at higher air flow rates without blowing the bubble forming vortices out of the chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.