Case Study: TVA Cooling Water Conservation Project

TVA (Tennessee Valley Authority) LogoZeta Library Collections: Case Studies
July 2013
TVA Cooling Water Conservation Project

Abstract:  Zeta Rod® Water Management Systems were selected to be utilized as the water treatment system of choice for the recirculating open-loop chillers, heat exchangers and cooling towers for the two HVAC Central Plants at a U.S. Government Data Facility in the Southeastern United States. The purpose of the system was to deliver significant water conservation while protecting critical cooling equipment in a manner consistent with a well managed traditional chemical water treatment program. The Zeta Rod system was included as part of an Energy & Water Conservation Project implemented by the Tennessee Valley Authority (TVA).

  • 22% less make up water used
  • 65% less waste water sent to the sewer
  • 5.8 Million gallons of water saved during the first year

Click here for full Case Study: TVA Cooling Water Conservation Project 

City of Tucson Crime Lab LEED® Gold: Cooling Water Conservation

City of Tucson Forensics Crime Lab - WSM ArchitectsZeta Library Collections: Case Studies

March 2012
City of Tucson Crime Lab: Enhanced Water Conservation, Chemistry Reduction and Re-Use Opportunities for Open Loop HVAC Water Treatment

The application of a Zeta Rod Water Management program allowed the Crime Lab to earn the LEED point under Water Efficiency and Innovation in Design. In particular, a measurable non-regulated water use savings that is at least 10% of the total calculated baseline design (166,000 gallons for the Crime Lab) for regulated (fixtures) water use is eligible for an exemplary performance ID point under WE Credit 3.  This project conservatively documented savings of  674% of the baseline calculation for an annual total of 1.1 million gallons.

click here to link to the Crime Lab first season project summary

Zeta Rod Reverse Osmosis 簡報檔-英文: Foxconn Group, Shenzhen China

Zeta Rods installed in Reverse Osmosis (RO) system | Foxconn Group, Shenzhen, ChinaZeta Library Collections: Case Studies

September 2007
Zeta Rod Reverse Osmosis 簡報檔-英文: Foxconn Group, Shenzhen China
Frigaid Corporation Ltd. - Zeta Rod Distributor for Asia www.zetarod.com.tw

Zeta Rods installed into a Foxconn Reverse Osmosis (RO) plant in Shenzhen China increases permeate rate from 66.6% to 76.4%,  reduces wastewater by 15% and prevents fouling of RO membranes allowing for energy savings and increased productivity.

click here to link to the Foxconn case study

Zeta Rod 簡報檔-英文 Formosa Plastics | Nan-Ya Jing Hsin Co-Gen Power Plant

Formosa Plastics | Nan-Ya Jing-Hsin Power PlantZeta Library Collections: Case Studies

September 2007
Zeta Rod 簡報檔-英文 Formosa Plastics | Nan-Ya Jing Hsin Co-Gen Power Plant
Frigad Corporation Limited - Zeta Rod Taiwan Distributor www.zetarod.com.tw

The 10,000 RT cooling tower at Formosa Plastics Group, Nan-Ya Plastics Jing-Hsin Power Plant in Taiwan uses Zeta Rod systems for fouling prevention, water conservation, chemical reduction and enhanced worker health & safety.

click here to link to the Nan-Ya Co-Gen Plant case study

簡報檔-英文: Zeta Rods treat 6000RT cooling tower at Formosa Plastics Nan-Ya Chia-Yi Plant

Zeta rods installed into 6000RT cooling tower at Nan-Ya Plastics, TaiwanZeta Library Collections: Case Studies

September 2005
Formosa Plastics | Nan-Ya Chia-Yi Plant | Zeta Rod Case Study 簡報檔-英文

Frigaid Corporation Limited, Zeta Rod Asia Distributor www.zetarod.com.tw

Zeta Rod systems successfully provide water conservation, chemical eliminations and reductions, biofouling & scale prevention in this PVC plant.

click here to link to the Formosa Group, Nan-Ya Plastics Case Study

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

BP Manufacturing Solutions Reduces Chemical and Filtration Costs at GMPT Flint, Michigan USA

Link to GMPT Flint Success StoryZeta Library Collections: Case Studies

November 2001
BP Manufacturing Solutions reduces chemical and filtration costs, GMPT Flint, Michigan USA

Highlights: Several positive outcomes resulted from the use of Zeta Rods. Because fungal growth in the high-pressure tanks was eliminated, production downtime was minimized. The fungal reduction reduced maintenance costs and improved operational efficiencies. Chemical usage also dropped, most notably in anti-foam due to the change in surface tension caused by Zeta RodsTM. This anit-foam reduction alone provided an annual cost savings of $120,000.

Click here to open Case Study 

Case Study: Zeta Rods® improve legionella control in steel mill cooling towers

Photo of Nervacero steel mill cooling towers with Zeta Rods suspendedZeta Library Collections: Case Studies

June 2001
Zeta Rods improve legionella control in steel mill cooling towers

Nervacero steel mill in Vizcaya, Spain utilizes Zeta Rods in its legionella control protocol, allowing for elimination of bio-dispersant and reduction of sodium hypochlorite by 50%.

Click here to link to full Case Study

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

diagram of CELdek media functionZeta Library Collections: Case Studies
March 1999
Biosphere 2: Prevention of Biofouling and Scale in CELdek Wet Wall
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