Singapore has opened its first water treatment plant to recycle industrial used water.

This water was previously treated to internationally-accepted standards and discharged into the sea. The new plant purifies it to a higher standard so it can be re-used by industries for, say, their cooling processes.

National water agency PUB said the plant can produce up to one million gallons of non-drinkable water per day, and the output will be used by companies in Jurong Island.

The plant, located at the PUB's Jurong Water Reclamation Plant, was the result of collaboration between the agency and Japanese firm Meiden Singapore.