Jacobs to help decarbonise Singapore water treatment process

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New facilities will boost waste treatment and maximise energy and resource recovery.

Jacobs has been appointed by Singapore’s national water agency, PUB, to provide professional engineering services for the development of the new greasy waste (GWTF) and food waste treatment facilities (FWTF) to maximise energy and resource recovery at the Changi Water Reclamation Plant (CWRP).

To be co-located with the CWRP, the new facilities will boost Singapore’s waste treatment capabilities while harnessing synergies from co-digesting greasy waste, food waste and used water sludge – a by-product of the water reclamation process – to increase biogas yield. The additional biogas can be used for electricity generation to power CWRP, thereby reducing its carbon footprint.

Jacobs will provide preliminary and detailed design and engineering services for the new GWTF, as well as site supervision during construction, testing and commissioning of the project. Jacobs will also conduct the preliminary design study for the FWTF and will review additional modification works to the existing facilities at CWRP to support the co-digestion process.

“With the addition of treatment facilities at Changi and also Tuas, Singapore’s greasy waste treatment capacity is expected to double by 2025,” said Jacobs Asia Pacific and Middle East senior vice president and general manager Keith Lawson. “The project will meet the nation’s long-term needs and help decarbonise the water treatment process.

“We’re excited to continue our partnership with PUB in delivering forward-looking technologies that bring climate response to the forefront of the water treatment process. And in the process, we are combining our knowledge, experience and lessons learned from both CWRP and Tuas water reclamation plant to deliver the best outcome on this project.”

When completed, the GWTF will treat up to 12,000 cubic meters of waste a month – the equivalent of over 75,000 barrels of oil product.

PUB water reclamation (plants) department director Ooi Kian Eng commented: “By co-locating both waste treatment facilities with CWRP, PUB will be able to reap the synergies from processing both types of waste with used water sludge. This will boost PUB’s quest to enhance water sustainability and contribute to a low-carbon future.”