Method and apparatus for waste water treatment
US5968369A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 1998 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Jun 18, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/722
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An apparatus and method for removing contaminants from waste water directs the waste water through a first magnetic field. An ionic polymer is introduced into the waste water after the waste water passes through the first magnetic field, whereby at least some contaminants flocculate. Flocculated contaminants are separated from the waste water so as to form a waste water effluent. An oxidizing agent is introduced into the waste water effluent and the waste water and the oxidizing agent are directed through a second magnetic. The waste water is directed through a weir into a trough open to the atmosphere. Air is injected into the trough so that at least one gas within the waste water combines with the air injected into the waste water. The combined air and gas floats to the surface of the waste water and is expelled into the atmosphere. Foam is removed from the waste water in the trough.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.