USACE Demonstration of Noncorrosive, Capacitance-Based Water Treatment Technology for Chilled Water Cooling Systems

Link to USACE ERDC ReportTechnical Papers
September 2014
Demonstration of Noncorrosive, Capacitance-Based Water-Treatment Technology for Chilled-Water Cooling Systems : ERDC/CERL TR-14-15

20% reductions in cooling tower make-up water and 50% reduction in blow-down were achieved at four U.S. Military Bases over a 24 month study period.

Biofouling Control in Heat Exchangers Using High Voltage Capacitance-Based Technology

Image of Tomar, Portugal

Zeta Library Collections: Technical Papers
July 2007

R. Romo, M. M Pitts and N. B. Handagama. "Biofouling Control in Heat Exchangers Using High Voltage Capacitance Based Technology" ECI Symposium Series, Volume RP5: Proceedings of 7th International Conference on Heat Exchanger Fouling and Cleaning - Engineering Conferences International, Tomar, Portugal, July 1 - 6, 2007

Abstract:
…Four different application case studies are presented in this paper in which High Voltage Capacitance Based (HVCB) technology was used to control biofouling. The applications include an evaporative cooling wall in a greenhouse in Oracle, Arizona; a cooling tower–condenser application in Phoenix, Arizona (study performed by Arizona State University under a U.S. Department of Energy grant); a cooling tower system using reclaimed industrial waste water at a wafer facility in Camas, WA; and a piping system for a major utility plant (Tennessee Valley Authority – TVA) using river water.

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CH2M HILL evaluates Zeta Rod system to reclaim EDR wastewater for the City of Sherman, Texas

CH2M HILLZeta Library Collections: Technical Papers
January 2001
Feasibility Study for EDR Wastewater Treatment & Recovery

“The Zeta Rod improved operability of the conventional RO treatment (relative to no pretreatment) although the mechanism responsible for the observed reduction in membrane fouling is not well understood. Feed pressures and WTC were more stable during Zeta Rod use at 50% recovery than without its use at 15% recovery.”

Click here to link to CH2M HILL Feasibility Study for EDR Wastewater Treatment and Recovery

 

 

Solids Control in Solvent Extraction Circuits Using Electrostatic Dispersion

Zeta Rods Inserted into Solvent Extraction Piping

Zeta Library Collections: Technical Papers

February 1992
Solids Control in Solvent Extraction Circuits Using Electrostatic Dispersion
Morris Michael Pitts, Jr.
Society for Mining, Metallurgy and Exploration, Inc.
Annual Meeting, Phoenix, AZ February 1992

Elevation of surface charge density on colloidal particles in the presence of a high potential electrostatic field is demonstrated as a viable technique for preventing the accumulation of solids in solvent extraction circuits. This technique performs without introducing compounds that potentially interfere with kinetics or with phase separation.

click here to link to the SME Technical Paper