Avoca Water Treatment Plant

Client:

Central Highlands Water

Location:

Avoca, Victoria

Service:

Water treatment

Value:

AUD $2.5 M

Problems:

Plant upgrade for township

Solutions:

Containerised RO system

Benefits:

Reliable supply of towns water

Product:

Lamellae, Membranes

Completion Date:

December 2010

Contact:

Mark Aitken - Aquatec Maxcon

Aquatec Maxcon provided a design & construct solution for this project.

The upgraded Avoca WTP consists of the following main elements:

• Powder activated carbon dosing (existing equipment)
• Pre caustic soda dosing (pH/alkalinity adjustment, if required)
• Pre chlorine dosing (Fe oxidation, if required)
• Alum dosing (coagulation)
• Flash mixing chamber
• Flocculation chamber
• Lamella type clarifier
• Pressure sand filters, self backwashing (existing equipment)
• Filtered water pump tank (existing equipment)
• Post filtration ammonia dosing
• Filtered water tank, 150 m3
• Salt reduction plant and associated ancillary and chemical dosing equipment
• Permeate tank
• Post ammonia dosing (chloramination disinfection)
• Post chlorine dosing (chloramination disinfection)
• Post caustic soda dosing (pH)
• Clear water storage, 5 ML (existing system)
• Waste water handling, sludge drying lagoons and supernatant return equipment (existing equipment)

Aquatec Maxcon provided a high rate lamellae system, a containerised RO system to treat a blend of bore and surface waters to ensure that target water quality parameters were met.

Other related projects:

• Mt Beauty (2010), 2.7 ML/d design capacity
• Coffs Harbour DAFF plant (2009) ,42 ML/d design capacity
• Ararat DAFF WTP Grampians Water (2000), 200 L/s
• Halls Gap DAFF WTP Grampians Water (2000), 45 L/s
• Corowa DAFF WTP Corowa Shire Council (2002), 200 L/s
• Lockington DAFF WTP Coliban Water (2003), 12 L/s