Project’s context & challenges

--- AWARD: GWI Global Water Awards 2020 Water Project of the Year ---
The Choa Chu Kang Waterworks (CCKWW) upgrade was commissioned by PUB, Singapore’s national water agency, as part of a strategic effort to implement innovative technologies in large-scale water treatment. Officially opened in 2019, the project followed an 18-month pilot phase that validated the performance of ceramic membrane filtration and ozone pre-treatment under local conditions.
This initiative aimed to:
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Integrate the world’s largest ceramic membrane filtration system into an operational treatment facility
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Mitigate membrane fouling challenges through the use of ozone oxidation
- Enhance long-term resilience to variable raw water quality and climate impacts

Key figures
Customer benefits

High-quality Drinking Water
The combination of ceramic microfiltration and ozone pre-treatment ensures effective removal of turbidity and pathogens, consistently delivering safe, clean drinking water.

Sustainability & Efficiency
The system requires fewer chemicals, operates with high energy efficiency, and offers long membrane lifespan, contributing to more sustainable water treatment.

Lower Lifecycle Costs
Compact design and fewer components reduce construction and maintenance costs, while long-lasting ceramic membranes (>20 years) support cost-effective operations.

Robust, Future-proof Design
Built to handle fluctuations in water quality and withstand long-term operational demands, the system supports resilience and adaptability.
Solution
A full-scale ceramic membrane upgrade was implemented based on an 18-month pilot. The treatment train includes:
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Ozone oxidation of feed water to prevent membrane fouling and enhance microbial removal.
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12 CeraMac® ceramic membrane vessels, each containing 90 membranes, enabling high-flux filtration at 180 MLD.
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Integration into existing reservoirs and post-treatment steps like disinfection remain intact, with the membranes seamlessly enhancing plant performance.
This solution allowed the biggest ceramic membrane installation globally for drinking water, optimized for both performance and longevity.

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- Municipal drinking water
Membrane – CeraMac®
- Drinking water