Files and links (1)
Published VersionCC BY-NC-ND V4.0, Open Access
Journal article
Assessing water circularity in cities: Methodological framework with a case study
Resources, Conservation and Recycling, Vol.178, pp.1-10
2022
Abstract
With significant efforts made to consider water reuse in cities, a robust and replicable framework is needed to quantify the degree of urban water circularity and its impacts from a systems perspective. A quantitative urban water circularity framework can benchmark the progress and compare the impacts of water circularity policies across cities. In that pursuit, we bring together concepts of resource circularity and material flow analysis (MFA) to develop a demand- and discharge-driven water circularity assessment framework for cities. The framework integrates anthropogenic water flow data based on the water demand in an urban system and treated wastewater discharge for primary water demand substitution. Leveraging the water mass balance, we apply the framework in evaluating the state of water circularity in Singapore from 2015 to 2019. Overall, water circularity has been steadily increasing, with 24.9% of total water demand fulfilled by secondary flows in 2019, potentially reaching 39.6% at maximum water recycling capacity. Finally, we discuss the wider implications of water circularity assessments for energy, the environment, and urban water infrastructure and policy. Overall, this study provides a quantitative tool to assess the scale of water circularity within engineered urban water infrastructure and its application to develop macro-level water systems planning and policy insights.
Details
- Title
- Assessing water circularity in cities: Methodological framework with a case study
- Authors
- Mohit Arora (Corresponding Author) - Imperial College LondonLih Wei Yeow - Singapore University of Technology and DesignLynette Cheah - Singapore University of Technology and DesignSybil Derrible - University of Illinois Chicago
- Publication details
- Resources, Conservation and Recycling, Vol.178, pp.1-10
- Publisher
- Elsevier BV
- Date published
- 2022
- DOI
- 10.1016/j.resconrec.2021.106042
- ISSN
- 1879-0658; 0921-3449
- Copyright note
- © 2021 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
- Organisation Unit
- School of Science, Technology and Engineering
- Language
- English
- Record Identifier
- 991029280602621
- Output Type
- Journal article
Metrics
2 File views/ downloads
43 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Web Of Science research areas
- Engineering, Environmental
- Environmental Sciences
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites