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In line with the way forward as recommended by the International
Review Panel (the IRP) in 2000,
Pilot Plant Trials on Compact Sewage Treatment Technologies
were carried out at Stonecutters Island Sewage Treatment Works (SCISTW)
to evaluate the feasibility and applicability of the compact sewage treatment
technologies for further stages of Harbour Area Treatment Scheme (HATS).
These trials were completed in 2003 and concluded that
the Biological Aerated Filter (BAF) technology (which was recommended
by the IRP) could satisfactorily treat SCISTW's effluent with its high
temperature, low pH/alkalinity and high salinity.
The findings were fed into the Environmental
and Engineering Feasibility Assessment Studies (EEFS).
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