Monday, April 5, 1976
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"The second stage involves further reducing the pollutants by
introducing air into the sewage thus encouraging biological purification
processes.
"The remaining effluent is then passed to final settling tanks where
the remaining solids settle out before the clear effluent is discharged into
the sea."
and
The sludge that remains behind, he said, would be digested, dewatered
"posted with garbage for use as landfill in P.W.D. controlled tipping
operations.
A by-product of the sludge digestion process is methane gas, which
will be used to provide sous of the fuel for the electrical generators to be
installed in the plant.
The Sha Tin New Town Permanent Sewage Treatment Works has been
designed by Watson (B.K.) Chartered Civil Engineers, consulting engineers to
the Government, under the overall supervision of the Consultanta Management
Division of the P.W.D.'s Civil Engineering Office.
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