Purifying method and purification system for lakes and marshes
US5893978A · kind A · utility
25Cited by
13References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 4, 1997 |
| Grant date | Apr 13, 1999 |
| Priority date | — |
| Expiry date | Feb 4, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A purification system is provided for purifying the water of eutrophic lakes and marshes by partitioning the target lake/marsh to form a specified water treating area therein. For this purpose, a partitioning structure is provided for enclosing and partitioning the whole or part of an area around the mouth of each river flowing into the target eutrophic lake/marsh in the direction of depth to form a water treating water area; and a purifier for taking in water from the water treating area operates to separate and remove pollutants from the water, and then discharges treated water outside the water treating area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.