Linde will feature its new oxygen recovery system that can dramatically reduce oxygen (O2) consumption during ozone production for water treatment, at the Association of California Water Agenicies (ACWA) conference held in Anaheim, California from the 28th November to the 1st December.

According to Peter Studer, Programme Manager, Linde LLC, the patented system, named the OZORATM, can help the many California water treatment operators that depend on ozonation maximise their investment ­– and it can positively shift the economics for those operators who are not using ozonation. Studer will present an overview at a conference session on 29th November at 10am.

About 90% of the O2 used by an ozone generator is not converted to ozone (O3) and remains unused at a high cost to the water treatment operator. Linde leveraged its deep knowledge of adsorption processes to create the OZORA oxygen recovery system which efficiently separates O3 and recycles the unused O2 back to the O3 generator, reducing O2 consumption by up to 60%.

The OZORA system was jointly tested and validated with SUEZ, a leading manufacturer of ozone generators and a prominent player in the water treatment industry. It can be sized to match new O3 generation units, or engineered to retrofit existing water treatment operations.

Also at ACWA, Linde will present two other innovations for water treatment: SOLVOX® mobile for oxygenation and SOLVOCARB® venturi for efficiently controlling the pH of water with high total dissolved solids.

SOLVOX mobile is a new oxygenation technology specifically developed to help wastewater treatment plants cope with peak loads and downtime during aeration equipment maintenance. Its free-floating design allows for a simple and straightforward installation, even in challenging-shaped basins.

SOLVOCARB venturi provides high rates of carbon dioxide (CO2) mass transfer coupled with superior uptake efficiency for pH control. This technology is easily retrofitted in existing hydraulic systems and ensures a consistent performance with low energy loss, while requiring low maintenance. Using CO2 for alkalinity control avoids the safety hazards and overtreatment issues associated with mineral acids.

The OZORA oxygen recovery system

The OZORA oxygen recovery system