Method for treating water
US5389257A · kind A · utility
66Cited by
28References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1991 |
| Grant date | Feb 14, 1995 |
| Priority date | — |
| Expiry date | Nov 7, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/37
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for treating water comprises: (a) connecting a plurality of tanks each capable of holding water in series such that water can be transferred along the series of tanks from a first tank to a last tank, wherein each of the tanks comprises a bottom and light-transmitting sides; (b) stocking the tanks with water and organisms for removing pollutants from the water, (c) inputting water containing pollutants to the first tank; and (d) outputting water from which said pollutants have been removed from the last tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.