Patent · US Expired

Process for the treatment of organic pollutants in wastewaters by wet oxidation

US5820761A · kind A · utility

11Cited by

8References

8Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Klaus Holzer · Leverkusen, DE
Otto Horak · Cologne, DE
Thomas Melin · Longview, US

Key dates

Filing date	Jul 1, 1996
Grant date	Oct 13, 1998
Priority date	—
Expiry date	Jul 1, 2016

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/903
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

Organic pollutants in wastewaters are wet-oxidized by addition of pure oxygen or an oxygen-containing gas at temperatures of 80.degree. to 330.degree. C., under pressures of 1 bar to 200 bar and at a pH value below 7. For the wet oxidation process, iron ions and digested sludge or surplus sludge from a biological sewage treatment plant are added to the wastewater.

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