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MONDAY, NOVEMBER 14, 1977
THE PLANT WILL BE ABLE TO TREAT MORE THAN 102,000 CUBIC METRES OF RAW SEWAGE PER DAY.
THE MAXIMUM SEWAGE FLOW TO THE PLANT FOR FULL TREATMENT, WOULD BE 3.6 CUBIC METRES PER SECOND- A TREMENDOUS INCREASE
IN TREATMENT CAPACITY OVER THE EXISTING TEMPORARY PLANTS, MR. STEAD ADDED.
HE SAID THAT THE TREATMENT SYSTEM OF THE NEW PLANT WOULD INVOLVE A SERIES OF COMPLEX PROCESSES WHICH COULD ROUGHLY BE DIVIDED INTO THREE STAGES - TWO STAGES OF PHYSICAL TREATMENT AND ONE OF BIOLOGICAL TREATMENT.
THESE PROCESSES WOULD REMOVE ABOUT 92 PER CENT OF THE POLLUTANTS IN THE SEWAGE BEFORE THE CLEAR EFFLUENT IS DISCHARGED INTO THE LANDLOCKED TOLO HARBOUR.
HE SAID THAT SPACE HAD BEEN SET ASIDE FOR A TERTIARY TREATMENT PROCESS WHICH WOULD REMOVE AN ADDITIONAL FIVE PER CENT OF THE POLLUTANTS SHOULD MONITORING OF THE CONDITIONS IN TOLO HARBOUR SHOW SUCH A NEED.
MR. STEAD EXPLAINED: +PART OF THE BIOLOGICAL STAGE OF THE TREATMENT PLANT WILL BE EQUIPPED TO CARRY OUT NITROGEN REMOVAL. THIS BEING ONE OF THE NUTRIENTS WHICH MAY CAUSE RED TIDES IN LARGE BODIES OF WATER WITH LITTLE TIDAL EXCHANGE.
+THEREFORE, MAXIMUM PRECAUTIONS ARE BEING TAKEN TO ENSURE THAT TOLD HARBOUR IS PRESERVED FOR ITS VALUABLE NATURAL FISH BREEDING PROPERTIES, AND AS AN AREA OF GREAT NATURAL BEAUTY WHICH IS INCREASINGLY BEING USED BY THE GENERAL PUBLIC FOR RECREATIONAL PURPOSES.+
THE SHA TIN NEW TOWN SEWAGE TREATMENT PLANT HAS BEEN DESIGNED BY WATSON (H.K.) CHARTERED CIVIL ENGINEERS, CONSULTING ENGINEERS TO THE GOVERNMENT, UNDER THE OVERALL SUPERVISION OF THE CONSULTANTS MANAGEMENT DIVISION OF THE P.W.D.'S CIVIL ENGINEERING OFFICE.
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