Water treatment
US5888388A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1997 |
| Grant date | Mar 30, 1999 |
| Priority date | — |
| Expiry date | Apr 23, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F2201/3228
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A filtration unit e.g. for ponds comprises a housing divided into a radiation chamber (18) with a water inlet (20) and a filtration chamber (19) with water outlets (21,22). A weir (23) in the partition wall (17) between the chambers controls the water level in the radiation chamber (18). One or more UV tubes (25,26) are mounted in the radiation chamber (18) above the water level therein controlled by the weir (23). Preferably the housing has a cover which is in two parts a first (33) of which extends over the radiation chamber (18) and is secured by screws or the like so that it cannot be removed inadvertently, and the second (34) of which extends over the filtration chamber (19) and is hinged to give ready access to the filtration chamber (19).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.