Emergency water treatment device
First Claim
1. An emergency water treatment device, comprising:
- a) a primary container for receiving untreated water, and a disinfecting agent contained therein, b) a secondary container for receiving treated and filtered water, c) a filter cartridge with a filter element contained therein with the cartridge positioned between the primary and secondary container which filters the water flowing from the primary container to the secondary container, d) a physicochemical time switch which blocks the flow of water from the primary container to the filter element for a period of time which coincides with a disinfecting period wherein the disinfecting period is a time period for disinfecting the untreated water within the primary container with the disinfecting agent.
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Abstract
A water treatment device for purifying small quantities of non-potable water for drinking purposes. The device includes: a primary container, a secondary product container, and a cylindrical filter cartridge. The primary container is filled with untreated water, and brought into contact with a disinfecting agent. The filter cartridge is then attached to the primary container and the secondary container is attached to an outlet port of the filter cartridge, the entire arrangement is then inverted to allow water to flow from the primary container into the inlet port of the filter cartridge. A physicochemical time switch is installed near the inlet port of the filter cartridge and blocks the flow of water from the primary container into the filtering elements until an appropriate amount of time has lapsed for the disinfecting agent to effectively disinfect the water. The physicochemical time switch is either a water dissolvable barrier or an expandable compartment filled with hydrophilic polymeric crystals. The filter cartridge includes anion exchange resins, filtering media for removing suspended impurities, and activated carbon for removing organic impurities and chlorine residue.
33 Citations
16 Claims
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1. An emergency water treatment device, comprising:
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a) a primary container for receiving untreated water, and a disinfecting agent contained therein, b) a secondary container for receiving treated and filtered water, c) a filter cartridge with a filter element contained therein with the cartridge positioned between the primary and secondary container which filters the water flowing from the primary container to the secondary container, d) a physicochemical time switch which blocks the flow of water from the primary container to the filter element for a period of time which coincides with a disinfecting period wherein the disinfecting period is a time period for disinfecting the untreated water within the primary container with the disinfecting agent. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An emergency water treatment device comprising:
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a) a cylindrical filter cartridge with an inlet port at one end and an outlet port on an opposing end, filter stages contained within the filter cartridge for filtering water flowing from the inlet port to the outlet port, b) a primary water container for receiving a volume of non potable water, the container has a neck opening for filling the container and which is dimensioned to sealingly connect to the inlet port of the filter cartridge, c) a disinfecting agent added to the volume of non potable water in the primary container for a disinfecting time period to disinfect the water prior to the water flowing into the filtering stages of the filter cartridge, d) a secondary container for receiving a volume of treated water, the secondary container has a neck dimensioned to sealingly connect to the outlet port of the filter cartridge, and e) a physicochemical time switch contained within the cylindrical filter cartridge and positioned between the inlet port and filtering stages contained within the filter cartridge, the time switch includes a means for blocking the flow of water from the primary container to the filtering stages until the disinfecting time period has lapsed. - View Dependent Claims (13, 14, 15, 16)
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Specification