The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 1987
Filed:
Aug. 06, 1984
Applicant:
Inventors:
Nils L Molin, Lund, SE;
Thomas G Welander, Malmo, SE;
Bengt G Hansson, Horby, SE;
Per-Erik Andersson, Sundsvall, SE;
Bengt A Olsson, Sundsvall, SE;
Assignee:
Purac Aktiebolag, Lund, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ; C02F / ; C12P / ;
U.S. Cl.
CPC ...
210603 ; 210605 ; 210606 ; 210614 ; 210631 ; 210632 ; 210928 ; 435167 ; 435262 ;
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.