Singapore's Integrated Drainage, Reservoir System
Published on by Water Network Research, Official research team of The Water Network in Technology
National water agency, PUB will study the technical and economic feasibility of developing an integrated underground drainage and reservoir system
With limited land area of approximately 718 km2, Singapore faces a continuous challenge to come up with innovative solutions to create spaces for a range of uses, while keeping Singapore highly liveable.
In a statement, PUB said the two-year study would look into the design options for an underground drainage and reservoir system (UDRS), which could integrate three key components - stormwater conveyance tunnels, underground reservoir caverns and a pumped storage hydropower system.
It said one possible option was to have tunnels convey excess stormwater to underground caverns for storage, adding they (caverns) could add to Singapore's reservoir water storage and enhance drought resilience.
In addition, the study will explore the possibility of having a pumped storage hydropower system to recover energy from the flow of water from surface water bodies to the underground caverns.
PUB director of policy and planning, William Yeo said: "Besides allowing us to overcome land limitations for key drainage and water storage infrastructure, the UDRS study can potentially allow us to mitigate the impact of climate change and flood risks, and strengthen the overall drought resilience of Singapore's water supply."
The study will include geological surveys to obtain detailed information on soil and rock properties. It is expected to be completed by 2017-end.
Source: Bernama
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