Patent · US Active

Filter comprising a halogen release system and chitosan

US8980097B2 · kind B2 · utility

3Cited by

19References

32Claims

0Family size

Assignee

Water Security Corporation · US

Inventors

Sivarooban Theivendran · Reno, US
James J. Kubinec · Reno, US
Jeff Snelling · Griffin, US

Key dates

Filing date	Mar 22, 2011
Grant date	Mar 17, 2015
Priority date	—
Expiry date	Sep 8, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC02F2305/08
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A filter to provide potable water may generally comprise an inlet in fluid communication with an outlet, a halogen release system intermediate the inlet and the outlet, a filter material comprising chitosan or a derivative thereof intermediate the halogen release system and the outlet, and a scavenger barrier intermediate the filter material and the outlet. The filter material may comprise a chitosan-halogen complex. The filter material is capable of regeneration during periods of stagnation. The filter may have a Log reduction value for viruses of at least 4 and a Log reduction value for bacteria of at least 6.

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