Development of a water cycle management approach to Sponge City construction in Xi'an, China

Su, D; Zhang, QH; Ngo, HH; Dzakpasu, M; Guo, WS; Wang, XC

Development of a water cycle management approach to Sponge City construction in Xi'an, China

Su, D Zhang, QH Ngo, HH

Dzakpasu, M Guo, WS

Wang, XC

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Publication Type:: Journal Article
Citation:: Science of the Total Environment, 2019, 685 pp. 490 - 496
Issue Date:: 2019-10-01

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Field	Value	Language
dc.contributor.author	Su, D	en_US
dc.contributor.author	Zhang, QH	en_US
dc.contributor.author	Ngo, HH https://orcid.org/0000-0002-0296-2866	en_US
dc.contributor.author	Dzakpasu, M	en_US
dc.contributor.author	Guo, WS https://orcid.org/0000-0001-5542-2858	en_US
dc.contributor.author	Wang, XC	en_US
dc.date.available	2021-08-12T19:00:46Z
dc.date.issued	2019-10-01	en_US
dc.identifier.citation	Science of the Total Environment, 2019, 685 pp. 490 - 496	en_US
dc.identifier.issn	0048-9697	en_US
dc.identifier.uri	http://hdl.handle.net/10453/135265
dc.description.abstract	© 2019 In recent years, climate change, population growth, and inefficient use of water have exacerbated the water resources scarcity problems around the world. Hence, this paper establishes a new approach of Sponge City construction (SCC) based on water cycle management (WCM) for the sustainable exploitation of groundwater, recycled wastewater and rainwater in the Xi'an Siyuan University. The University is located in an isolated area that is far away from the city center so that no centralized water supply system could be utilized. To mitigate water scarcity problems in the University, 39% of the annual rainfall is harvested and stored from impervious surfaces and grasslands by using the Curve Number (CN) method. This stored water is reused for non-potable purposes: 40% for toilet flushing and 60% as miscellaneous water. According to findings, the available rainwater of500–700 m3/d accounts for 16–23% of the non-potable water from April to December. Moreover, the utilization rate of water resources increases from 204% to 227%. With the minimum volume of large-scale rainwater harvesting cistern of 52,760 m3, the environment could be adequately watered while improving the expansion and development conditions on the campus. Furthermore, water scarcity problems could be mitigated through optimization of the water resources utilization system. This study demonstrates that this new approach of SCC based on WCM could alleviate water resources scarcity problems in Xi'an Siyuan University effectively. It is hoped that this study will provide a model and example of the new approach for future applications.	en_US
dc.relation.ispartof	Science of the Total Environment	en_US
dc.relation.isbasedon	10.1016/j.scitotenv.2019.05.382	en_US
dc.rights	info:eu-repo/semantics/embargoedAccess
dc.subject.classification	Environmental Sciences	en_US
dc.title	Development of a water cycle management approach to Sponge City construction in Xi'an, China	en_US
dc.type	Journal Article
utslib.citation.volume	685	en_US
utslib.for	0904 Chemical Engineering	en_US
utslib.for	0907 Environmental Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - CTWW - Centre for Technology in Water and Wastewater Treatment
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US
pubs.volume	685	en_US

Abstract:

© 2019 In recent years, climate change, population growth, and inefficient use of water have exacerbated the water resources scarcity problems around the world. Hence, this paper establishes a new approach of Sponge City construction (SCC) based on water cycle management (WCM) for the sustainable exploitation of groundwater, recycled wastewater and rainwater in the Xi'an Siyuan University. The University is located in an isolated area that is far away from the city center so that no centralized water supply system could be utilized. To mitigate water scarcity problems in the University, 39% of the annual rainfall is harvested and stored from impervious surfaces and grasslands by using the Curve Number (CN) method. This stored water is reused for non-potable purposes: 40% for toilet flushing and 60% as miscellaneous water. According to findings, the available rainwater of500–700 m3/d accounts for 16–23% of the non-potable water from April to December. Moreover, the utilization rate of water resources increases from 204% to 227%. With the minimum volume of large-scale rainwater harvesting cistern of 52,760 m3, the environment could be adequately watered while improving the expansion and development conditions on the campus. Furthermore, water scarcity problems could be mitigated through optimization of the water resources utilization system. This study demonstrates that this new approach of SCC based on WCM could alleviate water resources scarcity problems in Xi'an Siyuan University effectively. It is hoped that this study will provide a model and example of the new approach for future applications.

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http://hdl.handle.net/10453/135265