Case Study: TVA Cooling Water Conservation Project

TVA (Tennessee Valley Authority) Logo
July 2013

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 Architects

March 2012

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, China

September 2007

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 Plant

September 2007

 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, Taiwan

September 2005

 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

April 2003

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

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