PUB to begin desalting process for Marina Reservoir in April
By Timothy Ouyang, Channel NewsAsia | Posted: 31 March 2009 1652 hrs
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Marina Barrage
SINGAPORE: Singapore's first-ever city reservoir will begin its conversion to a freshwater catchment area next month.
The Marina barrage at the mouth of the Singapore River will prevent sea water from entering the Marina Reservoir.
From April, national water agency PUB will start a process known as desalting. Salinity in the water is expected to gradually change from brackish to freshwater conditions.
Experts said the salt content in the water will be diluted and displaced by rainwater. The desalting process is expected to be completed next year, creating Singapore's 15th reservoir.
The Marina Reservoir will meet 10 per cent of Singapore's current water needs. Water collected from surrounding areas within the Marina catchment will flow into the reservoir, preventing floods in low-lying areas in the city.
Gates at the recently built Marina Barrage will pump water out to sea during high tides. Each of the pumps is able to flush out 40 cubic metres of water per second – equivalent to draining out an entire Olympic-sized swimming pool in one minute.
- CNA/so
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