Waste water treatment
US5807484A · kind A · utility
14Cited by
5References
12Claims
0Family size
Inventors
Key dates
| Filing date | Oct 23, 1996 |
| Grant date | Sep 15, 1998 |
| Priority date | — |
| Expiry date | Oct 23, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S210/906
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A method for treating waste water which comprises passing the water through a series of steps including sequentially passing the water through an aeration step, and then a plurality of treatment cells wherein each treatment cell comprises a trickle filter cell. The waste water is subsequently subjected to a denitrification step and to a dephosphorization step. It is then passed through a trickle filter cell and optionally may be treated by passing through a cell wherein the waste water is in contact with peat moss.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.