Process for the detoxification of waste water containing phenol, phenol derivative or phenol and formaldehyde

US4370241A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Helmut Junkermann · Frankfurt, DE
• Horst Kruger

Key dates

• Filing date: Nov 27, 1979
• Grant date: Jan 25, 1983
• Expiry date: Nov 27, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S210/909
• WIPO field: Environmental technology
• WIPO sector: Chemistry

Abstract

Waste water containing phenol, phenol derivatives or phenol plus formaldehyde is purified by treating the waste water with hydrogen peroxide and either iron, copper or the complex salt sodium iron (III) ethylenediamine tetraacetate.