Abstract: A method for purifying water or other aqueous media in which a stream of the aqueous media is introduced into a fixed bed of a purification media and turbulent flow through the fixed bed is induced to permit intimate contact between the aqueous media and the purification media. Also disclosed is an apparatus for purifying the aqueous media which includes an outer housing having an inlet aperture and an outlet aperture; a multi-chamber purification unit disposed within the housing, and means for measuring the purity of aqueous media treated within the multi-chamber unit.

Abstract: A water purifying system includes an elongate chambered purifying assembly sized to be detachably mounted in a conventional canteen. The assembly is provided with an internal chamber filled with a particulate water purifying material and concentric tubes within the chamber require water flowing into the chamber through a filtered inlet at the bottom of the assembly to follow an extended chambered flow path through the purifying material to an outlet at the top of the assembly. The assembly includes a manually operable pump for pressurizing said container, thereby pumping water from the canteen through the purifying assembly.