Process Heating & Cooling Show
Register Today!

Process Heating & Cooling Show
Register Today!


Kelle Zeiher

Kelle Zeiher

Technical Project Manager
Garratt-Callahan

Kelle joined Garratt-Callahan in 2014. Prior to that she spent 18 years with Nalco, where she helped develop and launch their RO and TRASAR for RO programs; 7 years with Akzo-Nobel, where she headed up the global water treatment support team, offering specialty polymers; RO cleaners and antiscalants; green versions of traditional polymers; and a line of innovative metal removal materials she helped to create. Since joining G-C as Product Manager, her work has focused on education, customer service and new product development. She is an inventor of the G-C AROS minimal liquid discharge process.


Approaching Zero: Managing Cooling Water Discharge

Process cooling accounts for nearly 50% of U.S. water use. As demand for goods and services grows, greater cooling capacity will be needed in the future. At the same time drought, climate change, and environmental awareness/regulations are driving the cooling industry to increase its water efficiency to the theoretical maximum. (100% efficiency equals 10 cycles of concentration).
Current trends in water management include increased water treatment, use of blended waters to drive cooling cycles higher, and various methods for dealing with the highly concentrated mineral waste streams generated in the process.
Zero liquid discharge (ZLD) has been impossible for smaller sites to achieve due to the high capital and operating expenses associated with crystallizers, drum dryers, and other ZLD technologies.
New, patented minimal liquid discharge (MLD) processes now allow these industries to approach zero liquid discharge in a cost-effective manner.
A case study will be presented highlighting these concepts.
Objective 1: * Identify benefits of running higher cycles of concentration
Objective 2: * Compare ways to achieve optimal water reuse
Objective 3: * Be able to identify typical treatment and equipment used in reuse
Objective 4: * Be able to evaluate the benefit of chemical additions to optimizing cooling towers


Process Heating & Cooling Show Speakers
Process Heating & Cooling Show Agenda