Water treatment system with passive halogen barrier

Abstract

A water treatment system includes an adsorbent bed, a halogen-release material downstream of, and adjacent to, the adsorbent bed, and a passive halogen barrier intermediate of the adsorbent bed and the halogen-release material.

What is claimed is: 
     
         1 . A water treatment system comprising:
 an adsorbent bed;   a halogen-release material downstream of, and adjacent to, the adsorbent bed; and   a passive halogen barrier intermediate the adsorbent bed and the halogen-release material.   
     
     
         2 . The water treatment system as recited in  claim 1 , wherein the passive halogen barrier is a pleated sheet. 
     
     
         3 . The water treatment system as recited in  claim 2 , wherein the pleated sheet is formed of polyolefin. 
     
     
         4 . The water treatment system as recited in  claim 1 , wherein the passive halogen barrier is contiguous with the adsorbent bed. 
     
     
         5 . The water treatment system as recited in  claim 1 , wherein the passive halogen barrier is contiguous with the halogen-release material. 
     
     
         6 . The water treatment system as recited in  claim 1 , further comprising a common canister having an inlet and an outlet, and the adsorbent bed, the passive halogen barrier, and the halogen-release material are within the common canister intermediate the inlet and the outlet. 
     
     
         7 . The water treatment system as recited in  claim 1 , wherein adsorbent bed is in a first cartridge and the halogen-release material is in second, separate cartridge. 
     
     
         8 . The water treatment system as recited in  claim 1 , wherein adsorbent bed, the passive halogen barrier, and the halogen-release material are in a common cartridge. 
     
     
         9 . The water treatment system as recited in  claim 1 , wherein the adsorbent bed includes at least one of activated carbon media, synthetic carbon, or zeolite, and the halogen-release material includes iodinated resin. 
     
     
         10 . The water treatment system as recited in  claim 1 , wherein the passive halogen barrier is a pleated sheet formed of either polypropylene or polyethylene, and the pleated sheet is contiguous with at least one of the adsorbent bed or the halogen-release material. 
     
     
         11 . The water treatment system as recited in  claim 1 , further comprising a spacesuit, and the adsorbent bed, the halogen-release material, and the passive halogen barrier are within the spacesuit. 
     
     
         12 . A water treatment system comprising:
 a canister having an inlet and an outlet, the canister including therein between the inlet and the outlet:
 an adsorbent bed, 
 a halogen-release material adjacent the adsorbent bed, and 
 a passive halogen barrier intermediate the adsorbent bed and the halogen-release material. 
   
     
     
         13 . The water treatment system as recited in  claim 12 , wherein the passive halogen barrier is a pleated sheet. 
     
     
         14 . The water treatment system as recited in  claim 13 , wherein the pleated sheet is formed of polyolefin. 
     
     
         15 . The water treatment system as recited in  claim 14 , wherein the passive halogen barrier is contiguous with the adsorbent bed. 
     
     
         16 . The water treatment system as recited in  claim 12 , wherein the passive halogen barrier is contiguous with the halogen-release material. 
     
     
         17 . The water treatment system as recited in  claim 12 , wherein adsorbent bed is in a first cartridge and the halogen-release material is in second, separate cartridge. 
     
     
         18 . The water treatment system as recited in  claim 12 , wherein adsorbent bed, the passive halogen barrier, and the halogen-release material are in a common cartridge. 
     
     
         19 . The water treatment system as recited in  claim 12 , wherein the adsorbent bed includes at least one of activated carbon media, synthetic carbon, or zeolite, and the halogen-release material includes iodinated resin.