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Sha-tin Sewage Treatment Works

Project data

Location: Hong Kong, Hong Kong

Occupying 28 hectares of land, the existing Sha Tin STW is the largest secondary sewage treatment works in the territory, the Drainage Services Department has commenced relocating the Sha Tin Sewage Treatment Works.

The new Sha Tin Cavern STW will occupy 14 hectares of land while providing the same treatment capacity as the existing one by adopting advanced sewage treatment technologies. PERI delivered the tunnel lining formwork for the project.


  • Fulfilling the complex design and construction environment
  • Tunnel pouring for the base slab, walls, and top slabs
  • Tailored configurations of tunnel geometries and boundary conditions


Siu Fai Engineering Limited

Customer's benefit

  • Wide range of component options for customisation
  • Reduced construction costs

PERI solution

  • Tunnel poured in 4 stages to meet the client's requirement
  • Different component options to adjust the VARIOKIT VTC Tunnel Formwork Carriage to adapt to the most suitable condition for the project

PERI systems in use