From: University of Pittsburgh
Published February 2, 2017 02:46 PM

Life-cycle assessment study provides detailed look at decentralized water systems

The “decentralized” water system at the Center for Sustainable Landscapes (CSL) at Phipps Conservatory and Botanical Gardens, which treats all non-potable water on site, contributes to the net-zero building’s recognition as one of the greenest buildings in the world. However, research into the efficacy of these systems versus traditional treatment is practically non-existent in the literature. Thanks to a collaboration between Phipps and the University of Pittsburgh’s Swanson School of Engineering, researchers now have a greater understanding of the life cycle of water reuse systems designed for living buildings, from construction through day-to-day use.

Evaluating the Life Cycle Environmental Benefits and Trade-Offs of Water Reuse Systems for Net-Zero Buildings,” published in the journal Environmental Science and Technology (DOI: 10.1021/acs.est.6b03879), is the first-of-its-kind research utilizing life-cycle assessment (LCA). Co-authored by Melissa M. Bilec, associate professor of civil and environmental engineering at Pitt and deputy director of the Mascaro Center for Sustainable Innovation (MCSI), collaborators at Phipps included Richard Piacentini, executive director; and Jason Wirick, director of facilities and sustainability management. Pitt PhD graduate student, Vaclav Hasik, and Pitt undergraduate, Naomi Anderson, were first and second authors, respectively. 

“As water becomes more of a precious resource around the globe, there is a greater focus on developing new methods of water efficiency and water conservation,” Dr. Bilec said. “We’ve worked closely with Richard and Phipps since the CSL was first designed, and its decentralized water system provides a unique opportunity to explore how these strategies can be an alternative to traditional systems.”

Continue reading at University of Pittsburgh

Image: The Center for Sustainable Landscapes exterior with constructed wetlands and lagoon at Phipps Conservatory and Botanical Gardens.  Credit: Denmarsh Photography Inc.

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