Patent · US Active

Method for removing polyfluorinated organic compounds from water by means of an adsorbent and regeneration of the latter

US12017200B2 · kind B2 · utility

0Cited by

2References

21Claims

0Family size

Assignee

Helmholtz-Zentrum für Umweltforschung GmbH—UFZ · DE

Inventors

Anett Georgi · Leipzig, DE
Frank-Dieter Kopinke · Leipzig, DE
Katrin MacKenzie · Naundorf, DE
TheViet Nguyen · Hamburg, DE
Silke Woszidlo · Leipzig, DE
Robert Köhler · Leipzig, DE

Key dates

Filing date	Oct 29, 2019
Grant date	Jun 25, 2024
Priority date	—
Expiry date	Mar 19, 2041

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2303/16
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

The invention relates to a method for removing polyfluorinated organic compounds from water by means of an adsorbent and to the regeneration of the latter. According to the invention, at least one zeolite is used as an adsorbent, which is brought into contact with the water and is then regenerated by wet-chemical oxidation, wherein the oxidation is carried out by means of UV irradiation and/or at a pH in the range from pH 2.5-7.5.

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