Jardine Engineering Corporation (JEC) designed, supplied and installed E & M Equipment for Shatin Sewage Treatment Works (STW), Stage III Extension, Phase II Works for the Drainage Services Department (DSD) in Hong Kong.
The Shatin STW Stage III Extension Contract is to upgrade and extend the treatment capacity of the existing Shatin STW in two phases. Upon completion of the Stage III extension, the Shatin treatment capacity was increased to 340, 000m³/day. The extension will serve the predicted population growth in Shatin and Ma On Shan.
The works, which commenced in August 2002 and were completed in March 2006, involved the construction of the following additional treatment facilities:
a). Preliminary Treatment System, comprising Fine Screen, Grit Pump, Grit Channel Air Blower, and Grit Classifier.
b). Primary Sedimentation System, comprising all E & M Equipment for six Primary Sedimentation Tanks, each equipped with Sludge Collection and Removal Systems, Scum Collection and Removal Systems, and Scum Pumping Systems.
c). Biological Nutrient Removal Process, comprising all necessary E & M Equipment for six Aeration Tanks, each equipped with an Air Diffusion System, Mixed Liquor Recycle Pumps, Bridge-mounted Mixers, and Submersible Mixers.
d). Secondary Sedimentation System, comprising all necessary E & M Equipment for 12 rectangular Final Sedimentation Tanks, each equipped with Sludge Collection and Removal Systems, Scum Collection and Removal Systems, and Scum/Sludge Pumping Systems.
e). Sludge Treatment System, comprising all necessary E & M Equipment for Return Activated Sludge (RAS) System, Surplus Activated Sludge (SAS) System, and a Bio-gas Burner.
JEC has successfully improved the activated sludge sewage treatment process, removing both the carbonaceous and nitrogenous pollutants in the incoming sewage to meet the latest effluent standards and sludge disposal requirements. The technical proficiency of JEC’s E & M Contracting team played a vital role in enhancing and extending one of the most significant sewage treatment plants in Hong Kong.