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Resource Efficiency and Production Technology and Treatment

Pasteurisation, a long-established process used worldwide to disinfect milk and other food products, involves rapid heating and cooling for a short period of time. The project conducted at Melbourne’s Western Treatment Plant used the same process to treat wastewater to a Class A standard. Using an efficient heat exchange system that can capture and re-use waste heat, this project evaluated whether pasteurisation can simplify disinfection and reduce treatment costs and energy requirements compared to conventional water disinfection processes.

WORK UNDERTAKEN AND OUTCOMES

Traditionally used to disinfect milk and other food products, the trial confirmed the effectiveness of pasteurisation as a disinfection process and found that variations of the feedwater parameters such as turbidity and pH had little effect on the performance targets that measure a treatment technology’s effectiveness.

ADOPTION AND IMPACT

Although pasteurisation is not a viable option due to energy costs at this time, the laboratory and pilot-level studies informed the design of a validation process that aligned with the Australian Guidelines for Water Recycling.

 

 

PROJECT PARTNERS

Lead organisation: Victoria University
Partner organisations: Australian Water Quality Centre
Melbourne Water
WJP Solutions
Pasteurization Technology Group (USA)
Carollo Engineers (USA)

About the AWRCoE Knowledge Hub Research Projects List of Publications Corporate Publications