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

US4340490A · kind A · utility

Assignee

• Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler

Inventors

• Helmut Junkermann · Frankfurt, DE
• Horst Kruger

Key dates

• Filing date: Dec 20, 1977
• Grant date: Jul 20, 1982
• Expiry date: Dec 20, 1997

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.