Filter comprising a halogen release system and chitosan
AssigneeWater Security Corporation
InventorsSivarooban Theivendran, James J. Kubinec, Jeff Snelling
Life of this patent
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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.
Claims29
A filter to provide potable water, the filter comprising:
- a) an inlet in fluid communication with an outlet;
- b) a halogen release system intermediate the inlet and the outlet;
- c) a filter material comprising chitosan or a derivative thereof intermediate the halogen release system and the outlet;
- and
- d) a scavenger barrier intermediate the filter material and the outlet.
A method of treating water comprising at least one contaminant by a filter comprising 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 method comprising:
- flowing the water through the halogen release system;
- flowing the water through the filter material;
- and
- flowing the water through the scavenger barrier.
A water treatment system to provide potable water, the system consisting of an inlet in fluid communication with an outlet, and a halogenated chitosan intermediate the inlet and the outlet.
Dependencies are inferred from the claim text.