High Efficiency In-Line Pressurized Ozone Contacting With The GDT™ Process

Presented at:

International Ozone Association
European African Group
1997 Annual Conference
Berlin, Germany
April 22, 1997

Paul Overbeck
GDT Corporation
Phoenix, Arizona USA 

Angelo Mazzei
Mazzei Injector Corporation
Bakersfield, California USA

ABSTRACT

The development of high concentration (4-14%) ozone generators has created a need for highly efficient contacting systems to transfer ozone to solution. The patented GDTT Process utilizes venturi injectors, minimal detention and entrained gas separation and removal under pressurized conditions to maximize ozone mass transfer. The dynamic, high energy mixing at the injector benefits high concentration ozone processes with typical low gas to liquid ratios. The GDTT ( Gas Degas Technology) process can be used in full flow and side stream applications to achieve transfer rates in excess of 95%. The process has demonstrated high dissolved ozone levels (above 15 mg/l) in as little as 12 seconds detention time.

This paper will focus on the effects of various operating parameters on ozone mass transfer at various operating conditions. This data can be used for selection and optimization of operating parameters for water and wastewater applications