Desalinating sea water for irrigation

Desalinating sea water for irrigation


This plant is remotely monitored and controlled from Australia


  • Client

    Hong Kong Jockey Club

  • Technology

    Sea water desalination using reverse osmosis

  • Location

    Kau Sai Chau Island, Hong Kong

  • Commissioned

    Jan 2006

  • Project Scale

    1.5ML/d

Challenge The Hong Kong Jockey Club has built a world class golf course on Kau Sai Chau Island, Hong Kong. Maintaining it in peak condition requires more water than local catchments can provide. A new water source was required, with the surrounding ocean being the most viable option.

Solution Osmoflo won the contract to design and build a 1.5ML/d sea water reverse osmosis desalination plant. Pre-treatment in the form of multimedia filtration removes impurities from the sea water prior to its entry into the reverse osmosis system. A highly efficient Pressure Exchange energy recovery system minimises electricity consumption. Reject water containing salts is diffused back into the ocean and is readily dispersed by prevailing currents. Treated water is of drinking water quality and is used for irrigation and as a supplement to catchment water. Remote monitoring and control from Australia using Osmoflo's proprietary PlantConnect management system optimises plant performance and minimises on-site maintenance.

Result The climate independant, new water supply produced by the desalination plant more than covers the needs of the Hong Kong Jockey Club at Kau Sai Chau Island.

The Hong Kong Jockey Club is one of the world's largest racing organisations.