Creation of new thermal bio-waste processing technologies
Test whether nut shells can be opened and essential oils extracted using a DIC (instant controlled pressure drop) unit
Measure how much essential oil is extracted and analyse its chemical make-up
Assess if the combined DIC and pyrolysis system can work well both technically and commercially to produce essential oils, biochar and energy from nut waste
Kalpit Shah
Mojtaba Hedayatimarzabali
This project began by exploring how to turn nut shell waste—pine nuts, almonds, macadamias, and hazelnuts—into useful products like essential oils, biochar and bioenergy using a three-stage process. Led by RMIT and originally partnered with Australian Taste Pine Nuts (ATPN), the research was affected by COVID-related changes, and South East Water has now joined as a key partner. The scope has expanded to include biosolids as a feedstock. A new thermal processing technology is being trialled and will be implemented by both partners after the research ends. Industry has already invested in an ADCAR unit to continue the trials, a manuscript is underway for publication, and the team has shared findings at industry and CSIRO events.
Unlock new commercial uses for nut-shell waste and biosolids through bio-product innovation
Access funding and collaboration opportunities in sustainable agriculture and bioenergy research
Create scalable solutions that industry and government partners can adopt for circular economy goals
Strengthen cross-sector partnerships between universities, utilities, and agricultural businesses
Help shift agricultural waste processing from landfill to value-added bio-product creation
CSIRO Agricultural Workshop – presentation