Abstract
Water reuse provides a sustainable approach to balance water supply and demand in urban areas, and reclaimed water can be used for nonpotable applications to reduce demands on freshwater sources. Construction of a secondary network is required to distribute reclaimed water. Implementing water reuse projects on a wider scale is challenged by the need for communitywide public acceptance and adoption, which may be a dynamic and adaptive process. The adoption of new water infrastructure can drive hydraulic conditions in both the reclaimed network and an existing drinking water network. This research develops a dynamic modeling framework using a cellular automata (CA) approach to simulate consumer adoption of reclaimed water. The framework couples the CA model of consumer adoption with water distribution system models of the drinking and reclaimed water systems. Emergent distribution system hydraulic conditions are simulated, and the capacity utilization and system performance are evaluated as consumers adopt water reuse. The Town of Cary, North Carolina, is used as case study to develop and demonstrate the modeling framework. The CA parameters and rules are developed and validated using data about the addition of new accounts for the period 2001–2012. Projected water reuse adoption is simulated in Cary for the period 2012–2030, and impacts on the existing drinking water infrastructure and planned reclaimed water infrastructure are evaluated.
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Acknowledgments
This research is supported by the National Science Foundation (NSF), Grant Number 1233197. Opinions and findings are those of the authors and do not necessarily reflect the views of the NSF. The authors gratefully acknowledge officials from the Town of Cary, North Carolina, for providing data for the case study.
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Information & Authors
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Published In
Journal of Water Resources Planning and Management
Volume 142 • Issue 12 • December 2016
Copyright
© 2016 American Society of Civil Engineers.
History
Received: Jan 31, 2015
Accepted: May 9, 2016
Published online: Jul 19, 2016
Published in print: Dec 1, 2016
Discussion open until: Dec 19, 2016
ASCE Technical Topics:
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