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:
Aug. 01, 1978
Filed:
Aug. 04, 1975
Applicant:
Inventors:
Helmut Junkermann, Frankfurt, DE;
Heinrich Schwab, Frankfurt, DE;
Assignee:
Deutsche Gold- und Silber-Scheideanstalt vormals Koessler, Frankfurt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02B / ; C02C / ;
U.S. Cl.
CPC ...
210 / ;
Abstract
Formaldehyde containing waste water is detoxified by treating the waste water with hydrogen peroxide in the presence of alkali at an initial temperature of 10.degree.-35.degree. C. In an alternative and preferred form of the invention the waste water is heated to a temperature of at least 50.degree. C and then 10-35% of the hydrogen peroxide equivalent to the formaldehyde is added.