Patent ID: 9028685
Filing Date: 2015-05-12
Classification: C02F

Abstract:
1. A water purification system for providing storage and the necessary residence time for the disinfecting of water, the system comprising: a double tank, including an outer tank having a vertically extending circumferential wall and a bottom wall and a top wall; and an inner tank disposed wholly within the outer tank, located adjacent to and extending vertically upwardly from the bottom wall of the outer tank, wherein the inner tank comprises an inner shell comprising an upper half and a non-flexible lower half, the two halves being sealingly connected; a liquid inlet conduit extending through the bottom wall of the outer tank and through a bottom wall portion of the lower half of the inner shell of the inner tank and into the inner tank; a series of circumferentially arranged apertures extending through the lower half of the inner shell and an air vent through the upper portion of the upper half of the inner shell, and a liquid outlet conduit extending upwardly through the top of the outer tank; so as to define a path for water to flow from the inner tank to the outer tank, and then through the outlet conduit, after a desired minimum residence time, within the tanks.