Importance

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Abstract

A method for removing THMs and dissolved oxygen from water, including supplying the water into an upper portion of an air stripping container, passing the water generally downward toward a lower portion and through a first packing material, introducing air into the lower portion for flow generally upward toward the upper portion and generally against the flow of the water whereby at least some THMs undergo a phase change from liquid to gas and are carried generally upward with the air, supplying the water to an upper region of a vacuum degassing container, passing the water generally downward toward a lower region and through a second packing material, and dispensing the water from the lower region. An apparatus including an air stripping container connectable to the water, for flow generally downward through a first packing material, an air blower for providing air flow generally upward through the first packing material against flow of the water, a vacuum degassing container disposed in fluid connection with the air stripping container, a second packing material disposed within the vacuum degassing container, and a vacuum pump for providing a partial vacuum within the vacuum degassing container, whereby at least some dissolved oxygen can be removed from the water.

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First Claim