Patent · US Active

Method for in-situ regeneration of activated carbon loaded with trihalomethanes using alkaline hydrolysis

US10525446B2 · kind B2 · utility

0Cited by

3References

12Claims

0Family size

Assignee

Ovivo Inc. · CA

Inventors

Frank-Dieter Kopinke · Leipzig, DE
Philippe Rychen · Rixheim, FR

Key dates

Filing date	Aug 11, 2015
Grant date	Jan 7, 2020
Priority date	—
Expiry date	Apr 18, 2036

Classification

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

Abstract

The invention pertains to a process for in-situ regeneration of activated carbon loaded with trihalomethane (THM). Based on the invention, this is achieved with alkaline hydrolysis of the THM with increased temperatures within the activated carbon in halogen-free, good water-soluble, or gaseous compounds. After completion of the chemical hydrolysis treatment, the activated carbon is cleared of reagents and reaction products by rinsing with water and diluted acids, and is then available for reloading in the untreated water flow. During the entire cleaning process, the activated carbon bed must not be moved.

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