Device and method for UV-irradiation, especially for disinfecting, flowing liquids with reduced UV-transmission
US6500312B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 30, 1999 |
| Grant date | Dec 31, 2002 |
| Priority date | — |
| Expiry date | Dec 30, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC02F1/325
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
The invention relates to a device and method for UV irradiation of treated waste water. The device comprises a plurality of UV modules, each UV module being an immersed radiator that comprises a low-pressure mercury radiator surrounded by a round sheathing tube permeable to UV rays. Each UV module is assigned to an irradiation chamber of square cross-section, the midpoint of which is also the midpoint of the UV radiator. The distance between the UV modules is selected in such a way that the cross-sectional area of the irradiation chamber of each UV module is not more than ten times larger than the cross-sectional area of the UV module itself.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.