Chip Eng Seng bags $433m contract to build biosolids facility

It will construct a biosolids building, digesters and greasy waste receiving facility in Tuas.

The Public Utilities Board (PUB) has awarded the contract to build the biosolids treatment facility for the Tuas Water Reclamation Plant (WRP) worth $433m to Sembcorp Design and Construction, a wholly-owned subsidiary of Chip Eng Seng, according to a press release.

The contract was awarded following an open tender exercise in August 2019, during which a total of 11 bids were received.

The company will construct Tuas WRP’s biosolids building, digesters and greasy waste receiving facility. Works will start in April and are due to complete in 2025.

A major component of the Deep Tunnel Sewerage System Phase 2 project, these facilities will form the key interface between Tuas WRP and the National Environment Agency’s (NEA) Integrated Waste Management Facility (IWMF).

At the biosolids treatment facility, used water sludge will be co-digested with IWMF’s food waste to increase the yield of biogas at the IWMF. With an initial treatment of capacity of 800,000 sqm per day, Tuas WRP will house the largest membrane bioreactor facility in the world.

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