Upgrading Works for Stonecutters Island Sewage Treatment Works

SCISTW UPGRADING

The Stonecutters Island Sewage Treatment Works (SCISTW) is a chemically enhanced primary treatment (CEPT plant and adopts a space-saving double-tray sedimentation tank design to reduce its footprint. The plant construced under Stage 1 currently has a capacity for treating 1.7 million cubic metres of sewage each day and it is expanded under HATS Stage 2A with an increase of its capacity to 2.45 million cubic metres per day to cope increased flow from Hong Kong Island and future developments in the HATS catchment, serving a population of 5.7 million people ultimately.


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