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The buried treasure of Jeju Island transformed into fresh water

Saturday, 17 December, 2016

Submerged deep beneath the sea below Jeju Island, at the southernmost tip of the Korean peninsula, lies an amazing treasure: a gigantic pocket of "lava water". An estimated 300,000 years in the making, the 2.7 billion tons of ancient seawater has been naturally filtered and trapped between layers of volcanic basalt – and is exceptionally pure.

Local officials keen to boost the island's economy– and diversification from dependency on tourism and agriculture – were quick to recognize the industrial potential of their aquatic cache and put a new desalination plant out to tender. Krosys, a leading Korean firm with long experience in SWRO and wastewater systems, won the tender with a plant based on Danfoss high-pressure pumps and ERDs.

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