Sandia National Laboratories
Water Conservation Program
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Processes
Past, Present, &
Future Projects -
A History
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What Others Are Doing

Projects Prior to 2004 - A History

2003

  • Upgraded existing controllers for CICS.

2002

  • Cooling Towers
  • High Efficiency Reverse Osmosis (HERO) - Water Savings = 26 Million Gallons/ Year
    • Installed HERO (see FEMP) system as a MESA upgrade.
  • Reclaim AWN water for MDL Scrubbers - Water Savings = 7.8 Million Gallons/ Year
    • Utilized AWN water fro MDL Scrubbers.
  • Install of Recycle system for MDL - Water Savings = 31.5 Million Gallons/ Year
    • Installed a recycle system as part of a MESA upgrade. (Approximately, 50 gpm feed to the UPW system is recycled UPW water).

2001

  • Consolidated Controllers for CICS
  • Cooling Towers - New waters meters and controllers installed.

2000

  • High-cycle pilot study for a hcooling tower
  • CICS, Phase 1 - installed controllers, master valves, and the central computer

1999

  • Domestic - Low Flow fixtures installed in an office building
    • A building's toilets and water fixtures were modified or replaced with low-flow fixtures and valves. Urinals are 1.0gpf and toilets are 1.6gpf. Automated sensors were also installed on most sinks. Water consumption was reduced by 60%.

1998

  • Process Changes (MDL) - Water Savings = 2 Million Gallons/ Year
    • Separated Rinse Water from the process tank discharge allowing recycling of rinse water. Added monitors to manage recycle water and route as appropriate. Recycled acid from the process tank discharge.
  • Cooling Tower(MDL) - Water Savings = 27.5 Million Gallons/ Year
    • Utilized a portion of the process waste water from the Acid Waste Neutralization (AWN) to an adjacent cooling tower.
  • Laser Cooling Loop (CSRL) - Water Savings = 10 Million Gallons/ Year
    • Replaced once through cooling system with a closed loop system.

1997

  • Water Use Audit

1996

  • Central Steam Plant Improvements - Water Savings = 20 Million Gallons/ Year
    • Steam and condensate line leak detection repair. Replaced de-alkylizer. Added caustic to brine for resin renewal. Recycled treated water for cooling fan bearings, feed water pumps, and conductivity meter.
  • Water Treatment Efficiency (MDL) - Water Savings = 34 Million Gallons/ Year
    • Added more precise control valves, a more efficient pump manifold, piping, and high-surface-area Reverse Osmosis membranes
    • Increased RO recovery rate from 50% to 62%.

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Contact
Water Conservation
Sharon Sanders
(shasand@sandia.gov)
(505)284-4909

Infrastructure Mgt. Team Leader
Darell Rogers
(dmroger@sandia.gov)
(505)844-5842


Related Links
The Sandia Water Initative

Sandia's Energy and Infrastucture Mission Area