tailieunhanh - Water Efficiency Guide for Laboratories; Laboratories for the 21st ...

Most laboratory building in our country use significantly more water greatest need also provides guide to water efficiency is one in a series of best practices | L a b o r a t o ri e s f o r t h e 2 1 s t C e n t u r y : B e s t P r a c ti c e s WEATER FFICIENCY GUIDE FOR LABORATORIES Introducti on Steve Hall, Hedrick-Blessing/PIX12657 Hall, Steve Most laboratory buildings in our country use significantly more water per square foot than stan- dard commercial buildings do, primarily to meet their larger cooling and process loads. This greater need also provides laboratories with more opportu- nities to make cost-effective improvements in water efficiency, especially with respect to the amount of water they use in cooling towers and for special pro- cess equipment. A laboratory’s water efficiency can also be improved by making a few changes in other types of equipment, such as water treatment and sterilizing systems, as described in this guide. And alternative sources of water can often be effectively integrated into a laboratory’s operations. This guide to water efficiency is one in a series of best practices for laboratories. It was produced by Laboratories for the 21st Century (“Labs 21”), a joint program of the . Environmental Protection Agency (EPA) and the . Department of Energy (DOE). Geared toward architects, engineers, and facility managers, these guides provide information about technologies and practices to use in design- This exterior view of the Nidus Center for Scientific Enterprise in St. Louis, Missouri, shows the cisterns that store rainwater used to irrigate the ing, constructing, and operating safe, sustainable, grounds of this research facility. high-performance laboratories. Uni ted States . Department of Energy Envi ronmenta l Energy Effici ency and Renewabl e Energy Protecti on Agency Federal Energy Management Program 2 L A B S F O R T H E 2 1 S T C E N T U R Y LABS FOR THE 21ST CENTURY 3 Laboratory Cooling Towers Typical Cooling Tower Operation Drift ("D") Water flowing out of a cooling tower Cooling towers, which are part of many laboratory circulates to equipment that needs cooling. The .