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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