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. 24, 2011
Filed:
Mar. 14, 2007
Lucas Menke, Munich, DE;
George Troubounis, Munich, DE;
Lucas Menke, Munich, DE;
George Troubounis, Munich, DE;
Abstract
The present invention relates to a process for the purification of waste water, in particular for the continuous purification of waste water in papermaking, where waste water to be purified is fed to an anaerobic reactor (), the waste water is contacted, in the anaerobic reactor (), with anaerobic microorganisms in order to degrade contaminants present in the waste water, and the purified waste water is discharged from the anaerobic reactor (), where at least some of the waste water is subjected to a pressure-release flotation step () before being supplied to the anaerobic reactor or after being discharged from the anaerobic reactor, in order to delime the water to at least some extent. Furthermore, the present invention relates to a device which is suitable for carrying out the process according to the invention.