Blog Archives

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.

Evaporative “Swamp” Coolers Benefit from Zeta Rod Systems

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Diagram of Evaporative Coolers Treated with Zeta Rod Systems

Are you inter­est­ed in pro­tect­ing and reduc­ing main­te­nance on evap­o­ra­tive cool­ing equip­ment, sig­nif­i­cant­ly extend­ing the life of cool­er pads and CELdek® media, con­serv­ing water, and elim­i­nat­ing odor and scale buildup?   Zeta Rod® elec­tron­ic capac­i­tor-based water treat­ment sys­tems deliv­er these ben­e­fits and more with a sim­ple  instal­la­tion into the main water line feed­ing one or more evap­o­ra­tive cool­ers. Continue read­ing →

Case Study: Car Wash water recycle biofouling & odor prevention

Mill Valley Car Wash logo

Zeta Library Collections: Case Studies

April 2003
Mill Valley Car Wash water con­ser­va­tion, cost con­trol and cus­tomer sat­is­fac­tion
Within 60 days, results deliv­ered by the Zeta Rods were sig­nif­i­cant:

• Reduced water con­sump­tion per vehi­cle from 48.75 gal­lons per car (gpc) to 35.51 gpc; a net reduc­tion of 27% per vehi­cle
• 235,000 gal­lons of water saved in 60 days
• 38% drop in the total per vehi­cle wash­ing cost
click here to link to the Mil Valley Car Wash case study

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

 

 

CH2M HILL evaluates Zeta Rod & GrahamTek RO systems to reclaim EDR wastewater

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CH2M HILL

CH2M HILL, a glob­al leader in full ser­vice engi­neer­ing, con­struc­tion and oper­a­tions, was tasked to find a way to treat the con­cen­trate stream from a water treat­ment plant locat­ed in Sherman, Texas USA. The City want­ed to be able to treat this waste­water in order to reduce sew­er and waste­water plant load­ings, and to recov­er a por­tion of the waste­water as high qual­i­ty water than could be used to increase plant fin­ished water capac­i­ty. Continue read­ing →

Improving RO Performance with Zeta Rod Systems

Clean RO pressure chamberZeta Library Collections: Case Studies
December 1997
Improving RO Performance with Zeta Rod Systems
After three months, the mem­brane was removed and the ves­sel was seen to be com­plete­ly clean. The mem­brane body, like the ves­sel surface,was com­plete­ly free of bio-film.The removal of biofilm from the mem­brane was evi­denced by a 4.98% increase in the rate of per­me­ate recov­ery, from 77.26% to 81.11%.

click here to link to the full RO mem­brane case study