Optimising the Reliability of Design

Reliability of process design of water treatment works in Hong Kong was enhanced through various studies and reviews.


We were commissioned by government department and contractor to review the risk and operability of their process designs in water treatment works and sewage treatment works in Hong Kong. The objectives were to reduce the risk level and enhance the reliability of the treatment works.


We conducted dispersion modelling of gases, including nitrogen, oxygen, ozone and chlorine. HAZOP and risk assessment were also carried out to analyse the hazards impact of engineering design of vents.

We had also carried out reliability, availability and maintenance study (RAMS) to review and optimize the operability of the design.


We identified potential hazards and provided recommendations for optimising the engineering design for future operation through:

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