Aeration unit, aeration apparatus equipped therewith and method of aeration
US8292271B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 28, 2008 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Jun 3, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An aeration unit, an aeration apparatus and a method of aeration are provided that can quickly realize water quality with gas dissolution balance appropriate for living creatures in water, and that can be utilized for treating polluted water at sewage treatment facilities and used in a gas-liquid contact step at chemical plants or others. A multiple stage aeration apparatus constituted with an air diffuser for producing bubbles in water, a liquid foam generating channel part for changing bubbles in water into liquid foam bodies (soap-bubble-like liquid foam aggregate), a gas retention chamber having a space capable of retaining gas in water and a bubble accumulating part for collecting bubbles newly released from below the gas retention chamber and feeding the bubbles to the liquid foam generating channel part connected to the upper part thereof is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.