9:45 am - Gathering at the Main Entrance of Shatin Sewage Treatment Works
10:00 am - Visit to Shatin Sewage Treatment Works
11:30 am - Dismiss at Shatin Sewage Treatment Works
(The scheduled time may be changed so as to suit the actual conditions on the date of the visit.)
(Successful registration will receive details of the visit.)
Shatin Sewage Treatment Works (Shatin STW) is the largest secondary sewage treatment works in Hong Kong. It occupies 28 hectares of land and serves a population of 600,000 in Shatin and Ma On Shan Districts, which produces 250,000 m3 of sewage per day.
Shatin STW was commissioned in 1982. The treatment capacity was 100,000 m3 per day and was later increased to 200,000 m3 per day in 1986. To reduce the discharge of nutrient into the Tolo Harbour, nutrient removal facilities were installed in the aeration tanks in 1991, which as a result reduced the treatment capacity to 150,000 m3 per day. To meet the continuous population growth in Shatin and Ma On Shan, the STW commenced the Stage III Extension in 2001 and part of the works were commissioned in 2005. The treatment capacity of the STW was increased to 340,000 m3 per day after completion of the remaining works. In order to further improve the effluent quality, an ultraviolet light disinfection system was added in the STW in 2010.
In this event, the representatives of the DSD with brief our members the basic concept and operation of the STW. A tour of different areas of the STW will also be arranged.