Biosolids and bioenergy

The organic sludges arising from wastewater treatment processes are being investigated with regard to their safe and sustainable use for agriculture.

Studies are being conducted on the assessment and tracking of microbiological pathogen indicators in wastewater treatment processes and the resultant biosolids, and the factors which lead to their die-off. The efficacy of the utilisation of biosolids as soil amendments for crops in terms of nutrients and soil organic matter is under investigation. Studies are also being conducted on the hydrodynamics of biofouling, rheology and handling of sludges, particularly with regard to the mixing and thus efficient energy generation in anaerobic digesters.


Major project areas

  • Evaluating microbial and chemical safety in sludge treatment in wastewater treatment systems and the beneficial utilisation of the resultant biosolids.
  • Effect of ecosystem services on the removal of pathogens in applied reclaimed water and biosolids.
  • Biogas production from municipal wastewater and industrial wastes: optimisation through pre-treatment and also rheological design to enhance digester mixing and sludge heating.
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Acknowledgement of country

RMIT University acknowledges the people of the Woi wurrung and Boon wurrung language groups of the eastern Kulin Nation on whose unceded lands we conduct the business of the University. RMIT University respectfully acknowledges their Ancestors and Elders, past and present. RMIT also acknowledges the Traditional Custodians and their Ancestors of the lands and waters across Australia where we conduct our business. - Artwork created by Louisa Bloomer