Efficiency of urban water resource management and its evaluation

2020 ◽  
Vol 16 (2) ◽  
pp. 255-276
Author(s):  
B.A. Erznkyan ◽  
◽  
K.A. Fontana ◽  
Keyword(s):  
Resource Management ◽  
Water Resource ◽  
Water Resource Management ◽  
Urban Water

Efficiency of urban water resource management and its evaluation

2019 ◽  
Vol 18 (5) ◽  
pp. 855-876
Author(s):  
B.A. Erznkyan ◽  
◽  
K.A. Fontana ◽  
Keyword(s):  
Resource Management ◽  
Water Resource ◽  
Water Resource Management ◽  
Urban Water

scholarly journals A Water Evaluation and Planning-based framework for the long-term prediction of urban water demand and supply

SIMULATION ◽  
2021 ◽  
pp. 003754972098425
Author(s):  
Arfa Saleem ◽  
Imran Mahmood ◽  
Hessam Sarjoughian ◽  
Hasan Arshad Nasir ◽  
Asad Waqar Malik
Keyword(s):  
Resource Management ◽  
Water Resource ◽  
Water Demand ◽  
Water Resource Management ◽  
Resource Scarcity ◽  
Urban Setting ◽  
Planning System ◽  
Urban Water ◽  
Rapid Urbanization ◽  
Water Evaluation And Planning

Increased usage and non-efficient management of limited resources has created the risk of water resource scarcity. Due to climate change, urbanization, and lack of effective water resource management, countries like Pakistan are facing difficulties coping with the increasing water demand. Rapid urbanization and non-resilient infrastructures are the key barriers in sustainable urban water resource management. Therefore, there is an urgent need to address the challenges of urban water management through effective means. We propose a workflow for the modeling and simulation of sustainable urban water resource management and develop an integrated framework for the evaluation and planning of water resources in a typical urban setting. The proposed framework uses the Water Evaluation and Planning system to evaluate current and future water demand and the supply gap. Our simulation scenarios demonstrate that the demand–supply gap can effectively be dealt with by dynamic resource allocation, in the presence of assumptions, for example, those related to population and demand variation with the change of weather, and thus work as a tool for informed decisions for supply management. In the first scenario, 23% yearly water demand is reduced, while in the second scenario, no unmet demand is observed due to the 21% increase in supply delivered. Similarly, the overall demand is fulfilled through 23% decrease in water demand using water conservation. Demand-side management not only reduces the water usage in demand sites but also helps to save money, and preserve the environment. Our framework coupled with a visualization dashboard deployed in the water resource management department of a metropolitan area can assist in water planning and effective governance.

Integration of seawater and grey water reuse to maximize alternative water resource for coastal areas: the case of the Hong Kong International Airport

2012 ◽  
Vol 65 (3) ◽  
pp. 410-417 ◽  
Author(s):  
R. W. K. Leung ◽  
D. C. H. Li ◽  
W. K. Yu ◽  
H. K. Chui ◽  
T. O. Lee ◽  
...  
Keyword(s):  
Hong Kong ◽  
Resource Management ◽  
Water Supply ◽  
Water Resource ◽  
Water Resource Management ◽  
Water Cycle ◽  
Urban Water ◽  
Toilet Flushing ◽  
Hong Kong International Airport ◽  
Urban Water Cycle

Development, population growth and climate change have pressurized water stress in the world. Being an urbanized coastal city, Hong Kong has adopted a dual water supply system since the 1950s for seawater toilet flushing for 80% of its 7 million inhabitants. Despite its success in saving 750,000 m3/day of freshwater, the saline sewage (consisting of about 20–30% of seawater) appears to have sacrificed the urban water cycle in terms of wastewater reuse and recycling. Can seawater toilet flushing be applied without affecting the urban water cycle with respect to sustainable water resource management? To address this issue, we examined the entire urban water cycle and developed an innovative water resource management system by integrating freshwater, seawater and reclaimed grey water into a sustainable, low-freshwater demand, low-energy consumption, and low-cost triple water supply (TWS) system. The applicability of this novel system has been demonstrated at the Hong Kong International Airport which reduced 52% of its freshwater demand.

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