Innovative Deoxygenation of Ozonated Water

Presented at:

International Ozone Association
World Congress
1999 Annual Conference
Dearborn, Michigan
August 25, 1999

Paul K. Overbeck, James R. Jackson
GDT Corporation
Phoenix, Arizona USA

R. Michael Meyer, Angelo L. Mazzei
Mazzei Injector Corp.
Bakersfield, California USA

ABSTRACT

Dissolved oxygen levels exceeding normal saturation levels at ambient atmospheric conditions are typical in ozone treatment applications employing oxygen fed ozone generators. These oxygen supersaturated waters can cause operational problems for downstream treatment processes, corrosion in distribution and process piping and aesthetic problems in treated water.

The Vac-GDTT process can efficiently reduce dissolved oxygen levels from 25 mg/L to less than 8 mg/L in a small packaged system. Ambient air is introduced through a Mazzei^® injector for dissolved gas partitioning and rapid equilibrium attainment under vacuum conditions. Partitioned gases are removed from the two phase flow by a GDTT centrifugal separator also operated under a vacuum.

Applications include deoxygenation of ozone treated water for use in ozone generator cooling water, potable water, industrial, swimming pools, etc.