Method and apparatus for treating water
US4231863A · kind A · utility
21Cited by
16References
25Claims
0Family size
Inventor
Key dates
| Filing date | Apr 26, 1979 |
| Grant date | Nov 4, 1980 |
| Priority date | — |
| Expiry date | Apr 26, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Method and apparatus for purifying water or treating waste water by utilizing a gaseous medium, and particularly oxygen or air, to lift the water through a biological reactor in the form of a plurality of substantially vertical conduit members positioned over a manifold member through which the gas is supplied to the conduit. Preferably, when pure oxygen is employed, the system is sealed and utilizes a carbon dioxide absorber. Optionally, particles may be included in the water being treated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.