Urban water supply management in Shanghai

2007 ◽  
Vol 7 (2) ◽  
pp. 41-47 ◽  
Author(s):  
S.Q. Liu
Keyword(s):  
Water Supply ◽  
Water Resource ◽  
Rapid Development ◽  
Supply Management ◽  
Sustainable Urban Development ◽  
Water Supply Systems ◽  
Urban Water Supply ◽  
Water Supply Management ◽  
Supply Systems

Shanghai is the largest city in China with fast growth of population and economics during the last two decades. Management of water resource and water supply systems is one of the most important strategies for its sustainable urban development. In order to meet the increasing requirements of water demand, studies on policies and technologies for water resources development and water supply management have been implemented in the last few years. New water resource projects, water saving policies and water quality improvement have been adopted and played important roles for Shanghai's long-term rapid development.

scholarly journals The changing nature of the water–energy nexus in urban water supply systems: a critical review of changes and responses

2020 ◽  
Vol 11 (4) ◽  
pp. 1095-1122 ◽  
Author(s):  
Wenyan Wu ◽  
Holger R. Maier ◽  
Graeme C. Dandy ◽  
Meenakshi Arora ◽  
Andrea Castelletti
Keyword(s):  
Water Supply ◽  
Planning System ◽  
Integrated Modelling ◽  
Design System ◽  
Water Supply Systems ◽  
Urban Water ◽  
Urban Water Supply ◽  
Water Energy Nexus ◽  
Supply Systems

Abstract This paper provides a review of the changing nature of the water–energy nexus in urban water supply systems (UWSSs) due to the primary long-term drivers of climate change, population growth and technological development from the ‘energy for water’ perspective. We identify both the physical changes in UWSSs, as well as the changes in the attributes of the system, both of which contribute to the changing nature of the water–energy nexus. We provide an overview of responses to this change in the water–energy nexus through the lens of four application areas, namely long-term planning, system design, system operation and system rehabilitation, based on the review of 52 papers. Ten responses in three categories are found to be commonly considered in each of the four application areas. The three categories are energy or greenhouse gas reduction, integrated modelling and planning, and improving social benefits. The main drivers of these responses may vary with the application area. Based on the review outcomes, we outline the gaps in the responses in relation to the changing nature of the water–energy nexus in UWSSs, providing directions for future research on improving UWSS efficiency considering the long-term drivers.

Balancing Local and Global Sustainability of Urban Water Supply Systems with Water Security and Resilience Goals

2020 ◽  
Author(s):  
Elisabeth Krueger ◽  
Dietrich Borchardt ◽  
James Jawitz ◽  
Suresh Rao
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Urban Water ◽  
Urban Water Supply ◽  
Ecological Footprints ◽  
Global Sustainability ◽  
Governance Strategies ◽  
Supply Systems ◽  
New Framework

<p>The sustainability of urban water systems is commonly analyzed based on local characteristics, such as the protection of urban watersheds or the existence of nature-based solutions for stormwater drainage. Water embedded in food and other goods consumed within cities, or the pollution caused by their production is generally not assessed as part of urban water system sustainability. However, indirect feedbacks can produce negative impacts (e.g., drought and water quality impairments) resulting from these water and ecological footprints. We therefore suggest that, within the context of nexus thinking, embedded water and ecosystem impacts should be part of urban water governance considerations.</p><p>We quantify the local and global sustainability of urban water supply systems (UWSS) based on the performance of local sustainable governance and the size of global water and ecological footprints. Building on prior work on UWSS security and resilience, we develop a new framework that integrates security, resilience, and sustainability to investigate trade-offs between these three distinct and inter-related dimensions. Security refers to the level of services, resilience is the system’s ability to respond to and recover from shocks, and sustainability refers to the long-term viability of system services. Security and resilience are both relevant at local scale (city and surroundings), while for sustainability cross-scale and -sectoral feedbacks are important. We apply the new framework to seven cities selected from diverse hydro-climatic and socio-economic settings on four continents. We find that UWSS security, resilience, and local sustainability coevolve, while global sustainability correlates negatively with security. Approaching these interdependent goals requires governance strategies that balance the three dimensions within desirable and viable operating spaces. Cities outside these boundaries risk system failure in the short-term, due to lack of security and resilience, or face long-term consequences of unsustainable governance strategies. Our findings have strong implications for policy-making, strategic management, and for designing systems to operate sustainably at local and global scales, and across sectors.</p><p><em>The corresponding article was accepted for publication in Environmental Research Letters on Jan. 15, 2020.</em></p>

scholarly journals Balancing security, resilience, and sustainability of urban water supply systems in a desirable operating space

2020 ◽  
Vol 15 (3) ◽  
pp. 035007 ◽  
Author(s):  
Elisabeth H Krueger ◽  
Dietrich Borchardt ◽  
James W Jawitz ◽  
P Suresh C Rao
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Urban Water ◽  
Urban Water Supply ◽  
Operating Space ◽  
Supply Systems

scholarly journals Multi-objective optimization of energy and greenhouse gas emissions in water pumping and treatment

2020 ◽  
Vol 82 (12) ◽  
pp. 2745-2760
Author(s):  
Iliana Cardenes ◽  
Afreen Siddiqi ◽  
Mohammad Mortazavi Naeini ◽  
Jim W. Hall
Keyword(s):  
Energy Consumption ◽  
Water Supply ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Energy Use ◽  
Water Supply Systems ◽  
Urban Water Supply ◽  
Multi Objective Optimization ◽  
Gas Emissions ◽  
Supply Systems

Abstract A large part of operating costs in urban water supply networks is usually due to energy use, mostly in the form of electricity consumption. There is growing pressure to reduce energy use to help save operational costs and reduce carbon emissions. However, in practice, reducing these costs has proved to be challenging because of the complexity of the systems. Indeed, many water utilities have concluded that they cannot practically achieve further energy savings in the operation of their water supply systems. This study shows how a hybrid linear and multi-objective optimization approach can be used to identify key energy consumption elements in a water supply system, and then evaluate the amount of investment needed to achieve significant operational gains at those points in the supply network. In application to the water supply system for the city of London, the method has shown that up to 18% savings in daily energy consumption are achievable. The optimal results are sensitive to discount rate and the financial value placed on greenhouse gas emissions. Valuation of greenhouse gas emissions is necessary to incentivise high levels of energy efficiency. The methodology can be used to inform planning and investment decisions, with specific focus on reducing energy consumption, for existing urban water supply systems.

Assessing the Sustainability of Urban Water Supply Systems

2018 ◽  
Vol 110 (2) ◽  
pp. 40-47 ◽  
Author(s):  
Brian D. Richter ◽  
Mary Elizabeth Blount ◽  
Cara Bottorff ◽  
Holly E. Brooks ◽  
Amanda Demmerle ◽  
...  
Keyword(s):  
Water Supply ◽  
Water Supply Systems ◽  
Urban Water ◽  
Urban Water Supply ◽  
Supply Systems

Urban water supply systems improvement through water technology adoption

2018 ◽  
Vol 55 ◽  
pp. 70-77 ◽  
Author(s):  
Isaac Asare Bediako ◽  
Xicang Zhao ◽  
Henry Asante Antwi ◽  
Claudia Nyarko Mensah
Keyword(s):  
Technology Adoption ◽  
Water Supply ◽  
Water Supply Systems ◽  
Urban Water ◽  
Urban Water Supply ◽  
Supply Systems
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