Patent ID: 6238573
Filing Date: 2001-05-29
Classification: C01B,C02F

Abstract:
A process for producing chlorine for treating a flowing water supply having a flow rate with the produced chlorine having a chlorination feed rate and concentration sufficient to control microorganisms present in the flowing water supply comprising the steps of:a. blending in a high pressure tank an excess of calcium hypochlorite and water at a water feed rate sufficient to form a saturated solution of calcium hypochlorite and a sink of calcium hypochlorite with the high pressure tank having a top and a bottom, and within the tank a water delivery dip tube having an inlet and an outlet with the outlet being near the bottom of the tank, a high pressure, variable speed pump, connected to the inlet of the drip tube and a feed line near the top of the tank for feeding chlorinated water to a water supply containing microorganisms;b. sealing the tank;c. displacing a portion of the calcium hypochlorite sink by feeding water from the high pressure, variable speed pump to the drip tube to form additional saturated calcium hypochlorite solution;d. withdrawing saturated calcium hypochlorite solution through the feed line and adding the calcium hypochlorite to the flowing water supply; ande. controlling the chlorination feed rate to the flowing water supply by adjusting the delivery rate of the high pressure speed pump.