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2017, Volume 11, Issue 4

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Frontiers of Environmental Science & Engineering >> 2017, Volume 11, Issue 4 doi: 10.1007/s11783-017-0960-4

Upgrading to urban water system 3.0 through sponge city construction

. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.. Ministry of Environmental Protection of the People’s Republic of China, Beijing 100035, China

Available online: 2017-06-23
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Abstract

Urban water system 3.0 (Blue, gray, brown and yellow arrows represent water flow, wastewater flow, resource and energy respectively) Facing the pressure of excessive water consumption, high pollution load and rainstorm waterlogging, linear and centralized urban water system, system 2.0, as well as traditional governance measures gradually exposed characters of water-sensitivity, vulnerability and unsustainability, subsequently resulting in a full-blown crisis of water shortage, water pollution and waterlogging. To systematically relieve such crisis, we established healthy urban water-cycling system 3.0, in which decentralized sewerage systems, spongy infrastructures and ecological rivers play critical roles. Through unconventional water resource recycling, whole process control of pollutions and ecological restoration, system 3.0 with integrated management measures, is expected to fit for multiple purposes which involve environmental, ecological, economic and social benefits. With advantages of flexibility, resilience and sustainability, water system 3.0 will show an increasingly powerful vitality in the near future.

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