Oil-free air supply for recycled water project

Irrigation water solution for SA

The Glenelg to Adelaide Park Lands Recycled Water project is designed to provide a replacement for billions of litres of drinking water previously used for irrigation and significantly reduce treated wastewater levels in the Gulf St Vincent.

The $76 million joint initiative between the South Australian and federal governments has the capacity to supply up to 5.5 billion litres of high-quality recycled water annually, providing a sustainable long-term solution for irrigating the Adelaide parklands and city gardens.

CAPS Australia worked closely with the CityGreen Alliance partners Guidera O’Connor and design engineers at United Water and supplied two 22 kW Robuschi Evolution blower packages in duty and standby configuration to provide oil-free air supply for air scour and two ultrafiltration membrane units.

SA Sales Manager Kevin Jones said CAPS Australia was a proud partner in this significant infrastructure project and had the expertise to provide solutions for any low pressure or compressed air application for the water and wastewater treatment industry.

“CAPS assembled the blower packages in our Adelaide workshop incorporating the specific requirements for pressure and temperature instrumentation on the discharge air, for remote monitoring, as per project specifications,” Jones said.

“The Glenelg to Adelaide Park Lands Recycled Water project is yet another example where CAPS has worked successfully with water treatment contractors, consulting and design engineers, and water authorities around Australia.”

The project was delivered more than four months ahead of schedule by the CityGreen Alliance, comprising SA Water, United Water, Leed Engineering and Construction, Leighton Services and Guidera O’Connor.

Key elements of the project included:

• A new wastewater treatment plant (WWTP)
• Recycled water storage tanks and pump station
• An 8 km main underground pipeline from Glenelg to the parklands
• A 24 km underground pipeline network around the parklands, incorporating North Adelaide and the CBD

The water recycling process consists of treating the wastewater from the existing Glenelg WWTP using the latest ultrafiltration membrane technology and further treatment with ultraviolet and chlorine disinfection to ensure the water is safe and of high quality to meet rigorous Australian guidelines.