Patent · US Expired

Method of treating peroxide-containing wastewater

US4663043A · kind A · utility

19Cited by

5References

7Claims

0Family size

Assignee

Purac Aktiebolag · SE

Inventors

Nils Molin
Thomas Welander · Furulund, SE
Bengt G. Hansson · Hörby, SE
Per Andersson · Montréal, CA
Bengt A. G. Olsson · Sundsvall, SE

Key dates

Filing date	Aug 6, 1984
Grant date	May 5, 1987
Priority date	—
Expiry date	Aug 6, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S210/928
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

It was found difficult to carry out anaerobic treatment of peroxide-containing wastewater. According to the invention, the problem is solved in that the peroxide content of the water is reduced in a catalytic pretreatment step (1), preferably an enzymatic pretreatment step.

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