Patent · US Active

Ozone/UV combination for the decomposition of endocrine substances

US7462288B2 · kind B2 · utility

1Cited by

9References

13Claims

0Family size

Assignee

Wedeco AG Water Technology · DE

Inventor

Achim Ried · Bad Oeynhausen, DE

Key dates

Filing date	Apr 17, 2007
Grant date	Dec 9, 2008
Priority date	—
Expiry date	Apr 17, 2027

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02W10/10
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

The invention relates to a method for treating water, especially waste water and drinking water, containing both pathogenic germs and a substance which is difficult to decompose and is from the group comprising persistent substances, endocrine substances, odorous substances, and dyestuffs, by means of ozone supply and UV radiation. The inventive method comprises the following steps: a) ozone is supplied in a concentration of between 0.1 g/m3 and 15 g/m3; and b) UV rays are radiated in a wavelength range of between 200 nm and 300 nm and in a dose of between 50 J/m2 and 2,000 J/m2.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.