Patent ID: 7595022
Filing Date: 2009-09-29
Classification: C02F,Y10T

Abstract:
1. A system to provide a chemical to a fluid, the system comprising: a stream of the fluid having a flow rate; an elongate member having first and second ends and having the chemical therein moveable through the fluid stream; at least one supply portion of the elongate member contacting the fluid stream to provide the chemical to the fluid; wherein the chemical is transferable from the at least one supply portion to the fluid to provide a predetermined concentration of the chemical downstream from the elongate member; a rotatable first reel, the first end coupled thereto, with at least a portion of the elongate member wound thereon; a rotatable second reel, the second end coupled thereto, rotatable at a predetermined rate; the elongate member unwindable from the first reel and windable on the second reel; the at least one supply portion extending between the first and second reels; and the downstream chemical concentration dependent on the second reel rotation rate.