PUB Singapore upgrades Changi Water Reclamation Plant with GE advanced technology

01 July 2012


GE has announced that it will supply PUB, Singapore’s national water agency, with its advanced membrane bioreactor wastewater treatment technology for an expansion of PUB’s Changi Water Reclamation Plant. GE will supply its ZeeWeed* technology to engineering, procurement and construction company UES Holdings Pte Ltd (UESH) for the Changi upgrade.

The Singapore-based Changi Water Reclamation Plant was first constructed in 2007 initially to treat 800 MLD or 800,000 m3/d. Once operational, the expanded plant will be able to handle a maximum wastewater flow of about 860 MLD or 860,000 m3/d.

Under the contract with UESH, GE will supply the Changi Water Reclamation Plant with MBR technology and equipment featuring ZeeWeed 500 reinforced, hollow-fibre membranes, which have more than two decades of wastewater treatment and water reuse experience. GE also will provide cassettes, engineering design and commissioning support.

As part of Singapore’s master plan for water sustainability over the next 100 years, the Changi Water Reclamation Plant is at the heart of Singapore’s Deep Tunnel Sewerage System (DTSS), a superhighway for collecting used water. The conceptual plan for the DTSS consists of two large deep tunnels that span the island conveying wastewater to two centralised wastewater treatment facilities. Phase 1 of the DTSS system was completed in 2008 and conveys wastewater from North and East Singapore to the Changi Water Reclamation Plant. It comprises a 48 km long deep tunnel sewer running from Kranji to Changi, a centralised water reclamation plant at Changi, two 5 km long deep sea outfall pipes and 60 km of link sewer.

The treated used water from the Changi Water Reclamation Plant will then be discharged into the sea through deep sea outfall pipes or channeled to the Changi NEWater factory on the rooftop of the reclamation plant where it is further purified through advanced membrane technologies into NEWater, Singapore’s own brand of reclaimed water.

ZeeWeed 500 technology is an advanced filtration technology that separates particles, bacteria and viruses from water or wastewater. Nearly 1,000 plants worldwide use this technology to produce superior quality drinking water and to meet or exceed stringent wastewater treatment and water reuse standards.

Combined with the Ulu Pandan Water Reclamation Plant, the expanded Changi Water Reclamation Plant will be GE’s second MBR plant for Singapore’s PUB. Counting drinking water treatment and wastewater treatment, the Changi Water Reclamation Plant expansion will be GE’s fifth ultrafiltration/microfiltration membrane project with Singapore’s PUB. GE will ship the equipment to Singapore in the second and third quarter of 2013, and the expanded Changi Water Reclamation Plant is expected to be operational during the third or fourth quarter of 2013.

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