Saturday, April 16, 2011

How Singapore is making sure it doesn't run out of water


It may be one of the most developed nations in Southeast Asia, but on the densely packed urban island of Singapore, a simple glass of water doesn't come cheap, or easy.

A highly modernized city-state with a population of around 5 million, Singapore has no native freshwater supplies. Instead, it relies heavily on imports from neighboring Malaysia -- which delivers up to 250 million gallons a day -- to satisfy the nations huge and growing thirst.

At present, imports account for around 40% of its total water supply but, according to Singapore's Public Utilities Board (PUB), an array of alternative sources are in place to significantly reduce the country's future dependence on foreign supplies.

A "four tap" strategy -- which includes desalinated, recycled, rain and imported water -- has won the PUB an outpouring of international praise, including the Stockholm Industry Water Award in 2007.

According to Singapore's National Environment Agency, the country enjoys 2,340 millimeters of rainfall a year -- much of which is caught and funneled into the water supply through a network of drains, canals and reservoirs dotted around the city.

Large reservoirs are found even in the country's most built-up areas. Bordered by skyscrapers in densely-populated downtown Singapore, the recently built $226 million "Marina Barrage" has become a popular tourist attraction. (read more)

No comments:

Post a Comment