Drinking Water @ Bray Park

CLIENT Reed Constructions
Project Bray Park Water Treatment Plant
Size 100ML/day
Status Operational - March 2010
Water demands Potable supply for Tweed region
Water source Tweed River
Treatment Coagulation + Membrane Filtration + Chlorination
Services provided Membrane installation support

The recent upgrade of the Bray Park Water Treatment Plant involved increasing the capacity from 50MLD to 100MLD and changing to a membrane based treatment process. The increase in capacity was required due to increasing population in the Tweed Shire. Membranes were selected for the upgrade over conventional technologies, such as media filtration and DAF, for the following reasons:

  • Improved treated water quality
  • Small footprint
  • Ease of future expansion
  • Reduced operational complexity
  • Constructablity
  • Physical barrier to pathogens

The flowsheet at Bray Park consists of:

  • Raw water extraction from the Tweed River
  • Screening to 1mm
  • Coagulation for solids aglomeration and colour reducton
  • Membrane fitration
  • Chemical addition for stabilsation, pH correction, chlorination and flouridaton

A unique aspect of the Bray Park Water Treatment Plant is the use of a siphon to draw water through the membranes. When the membranes are clean the full 100MLD can be drawn through the membranes without the use of the permeate pumps.

The principal of Permeate Partners, Kurt Dahl, was involved in the early stages of procurement and design of the membrane system at Bray Park. More recently Permeate Partners assisted Reed Constructions by supervising the installation of the membranes.

 

 

 

 

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