Patent ID: 6217780
Filing Date: 2001-04-17
Classification: A01N,C02F

Abstract:
A water treatment system comprising:(a) a composition for treating water, formed by preparing a mixture comprising(1) a source of copper ion;(2) a source of silver ion;(3) a source of zinc ion;(4) one or more crosslinkable polymers; and(5) a crosslinking agentand allowing the mixture to dry to a solid composition, wherein the source of copper ion is present in an amount that provides a copper ion concentration in the water to be treated below the level at which copper staining of surfaces in contact with the water will occur; and(b) a container substantially immobilizing the composition (a), comprising at least one water inlet opening and at least one water outlet opening, and adapted to permit water to flow into and out of the container and to contact the composition.