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THURSDAY, APRIL 9, 1992
$67M CONTRACT FOR SEWAGE SCHEME AWARDED
THE DRAINAGE SERVICES DEPARTMENT TODAY (THURSDAY) AWARDED A $67 MILLION CONTRACT FOR THE SUPPLY AND INSTALLATION OF ELECTRICAL AND MECHANICAL EQUIPMENT FOR THE IMPLEMENTATION OF THE STANLEY SEWERAGE AND SEWAGE DISPOSAL SCHEME.
THE SCHEME IS AIMED AT PROVIDING A COMPREHENSIVE SEWAGE SYSTEM TO IMPROVE THE EXISTING SEWERS AND PROVIDING PROPER SEWAGE DISPOSAL FACILITIES FOR THE DEVELOPMENTS IN STANLEY AREA AT HONG KONG ISLAND SOUTH.
THE CONTRACT INVOLVES THE SUPPLY AND INSTALLATION OF ELECTRICAL AND MECHANICAL EQUIPMENT FOR THE STANLEY SEWAGE TREATMENT PLANT, STANLEY MAIN PUMPING STATION AND FIVE SUBSIDIARY PUMPING STATIONS PROPOSED UNDER THE SCHEME.
WORKS ON THE CONTRACT WILL START THIS MONTH
AND BE COMPLETED
IN EARLY 1994.
SECONDARY TREATMENT
THE STANLEY SEWAGE TREATMENT PLANT IS A PLANT USING EXTENDED AERATION PROCESS AND WILL BE CONSTRUCTED INSIDE A ROCK CAVERN AT A SITE ADJACENT TO STANLEY PRISON.
THIS IS THE FIRST UNDERGROUND SEWAGE TREATMENT PLANT IN SOUTHEAST ASIA WITH A DESIGNED CAPACITY OF TREATING A MAXIMUM SEWAGE FLOW OF 34,700 CUBIC METRES PER DAY.
THE PLANT WILL BE HOUSED IN FOUR PRINCIPAL CAVERNS, IN LENGTHS UP TO ABOUT 120 METRES LONG WITH THE LARGEST ONE COMPARABLE IN SIZE TO THE CENTRAL MTR STATION.
UNDER THE SEWAGE DISPOSAL SCHEME, ALL SEWERS GENERATED WITHIN THE CATCHMENT OF STANLEY, CHUNG HOM KOK AND TAI TAM WILL BE COLLECTED INTO THE MAIN PUMPING STATION AND PUMPED TO THE SECONDARY TREATMENT PLANT FOR FULL BIOLOGICAL TREATMENT PRIOR TO DISINFECTION.
THE TREATED EFFLUENT FROM THE TREATMENT PLANT WOULD THEN BE DISCHARGED VIA A 600-MILLIMETRE DIAMETER SUBMARINE OUTFALL ABOUT TWO KILOMETRES LONG OFF TWEED BAY CURRENTLY UNDER CONSTRUCTION IN A SEPARATE CONTRACT.
THE CONTRACT WAS SIGNED - TODAY BY AN ASSISTANT DIRECTOR OF DRAINAGE SERVICES, MR FRANKLIN HO, ON BEHALF OF
GOVERNMENT WITH THE CONTRACTOR, JARDINE ENGINEERING CORPORATION LTD.
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