Pre- and post-treatment system and method for aquatic plant filtration using ozone
US6783676B2 · kind B2 · utility
8Cited by
16References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 27, 2003 |
| Grant date | Aug 31, 2004 |
| Priority date | — |
| Expiry date | Feb 27, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/908
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A process for treating water to remove concentrations of nutrients and pollutants using ozone prior or after the water is exposed to natural filtration by periphyton or other aquatic plants. A system employs a deep water tank containing water to be treated is injected at the bottom with concentrated ozonated water to expose the water to be treated to ozone. The treated water exits from the tope of the tank whereby it is flowed over aquatic plant system to remove the undesired matter, such as pesticides. The process can be repeated successively to further treat the water if desired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.