Process for the treatment of continuous waste water streams having changing contents of different oxidizable materials with hydrogen peroxide

US4416786A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Helmut Knorre · Seligenstadt, DE
• Joachim Fischer · Rodgau, DE
• Klaus Stutzel · Frankfurt, DE

Key dates

• Filing date: Jun 28, 1982
• Grant date: Nov 22, 1983
• Expiry date: Jun 28, 2002

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S210/916
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

There is provided a continuous process for the lowering of the content of toxic materials in waste waters which also contain other oxidizable materials by quickly and continuously ascertaining the requirement of hydrogen peroxide, namely by potentiometric determination of the oxidizing agent requirement in a branched-off side-stream using a strong oxidizing agent, such as peroxymonosulfate, peroxydisulfate, permanganate, hypochlorite or ozone, which acts more quickly than hydrogen peroxide under comparable conditions.