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

Link to USACE ERDC Report
September 2014
:

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.

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

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

AIChE Update: New Techniques Tame Biofouling

Biofilm Word Cloud

February 2000

Chemical Engineering Progress | AIChE

Biofouling plagues many plants in the chem­i­cal process indus­tries. Ongoing research is focus­ing on ways to con­trol a range of bioor­gan­isms, rang­ing from fun­gi to zebra mus­sels, that can cause these prob­lems. Chlorine Pulsing, Electronic Rods [Zeta Rods], fil­ters, anti-micro­bial coat­ings and corn-based poly­mers are dis­cussed.  Click here to link to the AIChE CEP Magazine arti­cle.

Biosphere 2: Biofouling and Scale Prevention in CELdek® Wet Wall Evaporative Cooling

diagram of CELdek media function
March 1999

Bioshere 2 expe­ri­ences dra­mat­ic improve­ment in the clean­li­ness of wet wall CELdek® media with use of Zeta Rod sys­tems. Expected media replace­ment was unnec­ces­sary and the cli­mate wall can oper­ate at peak effi­cien­cy.

Click here to link to the Biosphere 2 Wet Wall Case Study

Improving RO Performance with Zeta Rod Systems

Clean RO pressure chamber
December 1997

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