Importance

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Abstract

An apparatus for injecting ozone into water includes a riser leg, a down leg and a plurality of crossovers joining the riser and down legs. A partial side stream of water from a main under substantial hydraulic pressure is directed through the apparatus. A crossover is chosen in accordance with the hydraulic head pressure of the side stream such that the water flowing therethrough is at a substantially lower pressure than the water in the main. A source of ozone is connected by a manifold and valving to allow the ozone to be injected into the water in the selected crossover. After injection of ozone, the side stream is returned to the water main to allow mixing of the ozone containing water with the remainder of the water in the main. A pump is also alternatively used to provide additional head pressure to the water in the side stream where head losses cannot be overcome by diverting to a lower crossover.

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First Claim