Puah Aik Num
Consultant, PUB – Singapore's National Water Agency
Area of Expertise:
- [Water Supply Plant] Water Reuse (NEWater) Operations
- [Water Supply Plant] Water Works Operations (Membrane)
- [Water Supply Plant] Water Works Operations (Sand Filter)
Mr Puah Aik Num has over 40 years of experience in the design and operation of water treatment plants. He joined PUB in 1981 as an Engineer after graduating with a degree in Civil Engineering from the University of Portsmouth, United Kingdom, and retired in 2023.
Throughout his career at PUB, Mr Puah held roles including Plant Manager, Deputy Director (Technology Department), and Chief Specialist for Water Treatment. As Deputy Director, he led PUB's research and development initiatives, commissioning novel projects with universities, research institutions, and industry partners to translate research into practical operational applications. He was actively involved in the transformation of PUB's water treatment infrastructure, including automation and mechanisation, retrofitting of existing processes, implementation of advanced treatment technologies, and more recently, the digitalisation of water treatment operations. Mr Puah is an active member of international water technology bodies including the Global Water Research Coalition, the International Desalination Association, and the International Water Association. He also served on the Board of Directors of Lien Aid, an international non-profit organisation dedicated to providing clean water and sanitation access to rural communities in Asia, from 2016 to 2022.
Throughout his career at PUB, Mr Puah held roles including Plant Manager, Deputy Director (Technology Department), and Chief Specialist for Water Treatment. As Deputy Director, he led PUB's research and development initiatives, commissioning novel projects with universities, research institutions, and industry partners to translate research into practical operational applications. He was actively involved in the transformation of PUB's water treatment infrastructure, including automation and mechanisation, retrofitting of existing processes, implementation of advanced treatment technologies, and more recently, the digitalisation of water treatment operations. Mr Puah is an active member of international water technology bodies including the Global Water Research Coalition, the International Desalination Association, and the International Water Association. He also served on the Board of Directors of Lien Aid, an international non-profit organisation dedicated to providing clean water and sanitation access to rural communities in Asia, from 2016 to 2022.