Treatment and disposal for the main urban area

Stonecutters Island Sewage Treatment Works was commissioned in June
1997 after a pilot plant study determined the most suitable chemical
treatment and showed the effluent from the works can be disinfected.
The study indicated that ultraviolet treatment and hypochlorination with
subsequent dechlorination are the most promising options, based upon
site-specific hazards, environmental impacts, land requirements and cost
considerations. There will be significant improvements in water quality
when the first stage of the Strategic Sewage Disposal Scheme, which will
treat 70 per cent of the flows entering Victoria Harbour, is completed.

[Back] [Forward]