Singapore's national water agency, PUB has partnered with Mitsubishi to build a demonstration-scale plant to test cost-saving and energy-efficiency technologies that could be implemented at the future Tuas Water Reclamation Plant (WRP).


Located within PUB’s Ulu Pandan WRP, the demo plant will have a capacity of 12,500 cubic meters a day and is expected to be completed in February 2017.

The plant will be fully automated to reduce the manpower required to operate the plant.

Construction on the plant will be undertaken by Mitsubishi Heavy Industries Asia Pacific (MHI-AP).

PUB chief technology officer Harry Seah said: "The treatment and subsequent reclamation of used water is a cornerstone in ensuring a sustainable supply of water for Singapore.

"The demonstration plant is a living model of the future Tuas WRP to allow us to test and validate the new technologies that will eventually be used at the Tuas WRP.

"These new and tested technologies will enable Tuas WRP to be more eco-friendly, produce less sludge and have the capability of producing more biogas for power, while consuming lesser energy than conventional plants."

The Tuas WRP will be the key component of the Deep Tunnel Sewerage System (DTSS) Phase 2, where used water is collected, disposed and reclaimed.

Phase 2 of the DTSS will extend the system to the western parts of the island.

Earlier in 2012, MHI-AP and PUB have partnered for the development of a test-bedding project to treat high strength industrial used water at Jurong WRP.

MHI-AP will continue to work with PUB on water sustainability projects.

Image: The Tuas WRP will collect, dispose and reclaim used water. Photo: courtesy of John Kasawa /