Professor Peter Scales

Research interests

  • Compressive and shear rheology
  • Electrokinetics
  • Flocculation (Aggregate structure)
  • Hydrometallurgy and nanoparticle synthesis and dispersion
  • Particulate flow and particulate (colloidal) interfacial phenomena (Rheology)
  • Separations using thickening, filtration and centrifugation
  • Water and waste water processing (Membrane fouling)
  • Water quality and recycle


Prof Peter Scales is Director of Engagement in the School of Engineering, University of Melbourne, a Professor in the Department of Chemical Engineering and Director of the Particulate Fluids Processing Centre. His research interests are in the area of slurry flow, molecular adsorption, particle dispersion and manufacture, particle flocculation and separations technologies. The application space of his work is to separations and processing in the mining, water, waste water and pharmaceuticals industries where both water recycle and transport of wastes are major issues. In addition to his research interests, he is on the editorial board of four journals, is a Fellow of IChemE and Engineers Australia and has won prizes for both his teaching and research.

Recent publications

  1. Ibn Abdul Hamid K, Scales P, Allard S, Croue J-P, Muthukumaran S, Duke M. Ozone combined with ceramic membranes for water treatment: Impact on HO radical formation and mitigation of bromate.. J Environ Manage. 2020, Vol. 253. DOI: 10.1016/j.jenvman.2019.109655
  2. Scales P, Wijekoon K, Ladwig C, Knight A, Allinson M, Allinson G, Zhang J, Gray S, Packer M, Northcott K, Sheehan D. A critical control point approach to the removal of chemicals of concern from water for reuse. WATER RESEARCH. Pergamon-Elsevier Science. 2019, Vol. 160. DOI: 10.1016/j.watres.2019.05.035
  3. Wijesinghe D, Dassanayake K, Sommer SG, Scales P, Chen D. Biogas Improvement by Adding Australian Zeolite During the Anaerobic Digestion of C:N Ratio Adjusted Swine Manure. WASTE AND BIOMASS VALORIZATION. Springer. 2019, Vol. 10, Issue 7. DOI: 10.1007/s12649-018-0210-4
  4. Krysiak-Baltyn K, Cavalida R, Thwaites B, Reeve PJ, Scales P, Van Den Akker B, Ong L, Martin G, Stickland A, Gras S. Comparison of physical characteristics and dewatering behaviour between granular and floccular sludges generated from the same sewage source. Journal of Water Processing Engineering. Elsevier BV. 2019, Vol. 29. DOI: 10.1016/j.jwpe.2019.100785
  5. Hofgen E, Collini D, Batterham R, Scales P, Stickland A. High pressure dewatering rolls: Comparison of a novel prototype to existing industrial technology. Chemical Engineering Science. Pergamon-Elsevier Science. 2019, Vol. 205. DOI: 10.1016/j.ces.2019.03.080
  6. Mettu S, Yao S, Law S, Sun Z, Scales P, Ashokkumar M, Martin G. Rheological properties of concentrated slurries of harvested, incubated and ruptured Nannochloropsis sp. cells. BMC Chemical Engineering. 2019, Vol. 1, Issue 1. DOI: 10.1186/s42480-019-0011-y
  7. Kundu P, Kumar V, Scales P, Mishra IM. Synergistic Influence of pH and Temperature on Rheological Behavior of Adhesive Emulsions Stabilized with Micelle Dispersion of an Anionic Surfactant. JOURNAL OF SURFACTANTS AND DETERGENTS. 2019, Vol. 22, Issue 2. DOI: 10.1002/jsde.12220
  8. De Godois Baroni E, Yap KY, Webley P, Scales P, Martin G. The effect of nitrogen depletion on the cell size, shape, density and gravitational settling of Nannochloropsis salina, Chlorella sp. (marine) and Haematococcus pluvialis. ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS. Elsevier. 2019, Vol. 39. DOI: 10.1016/j.algal.2019.101454
  9. Nadgorny M, Collins J, Xiao Z, Scales P, Connal L. 3D-printing of dynamic self-healing cryogels with tuneable properties. POLYMER CHEMISTRY. Royal Society of Chemistry. 2018, Vol. 9, Issue 13. DOI: 10.1039/c7py01945a
  10. Cao B, Zhang W, Du Y, Wang R, Usher S, Scales P, Wang D. Compartmentalization of extracellular polymeric substances (EPS) solubilization and cake microstructure in relation to wastewater sludge dewatering behavior assisted by horizontal electric field: Effect of operating conditions. WATER RESEARCH. Pergamon-Elsevier Science. 2018, Vol. 130. DOI: 10.1016/j.watres.2017.11.060
  11. Law SQK, Halim R, Scales P, Martin G. Conversion and recovery of saponifiable lipids from microalgae using a nonpolar solvent via lipase-assisted extraction. 2nd International Conference on Alternative Fuels and Energy (ICAFE). Elsevier Science. 2018, Vol. 260. DOI: 10.1016/j.biortech.2018.03.129
  12. Wijesinghe D, Dassanayake K, Scales P, Chen D. Developing an anaerobic digester with external Zeolite filled column for enhancing methane production from swine manure - A feasibility study. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH PART B-PESTICIDES FOOD CONTAMINANTS AND AGRICULTURAL WASTES. Taylor & Francis Ltd. 2018, Vol. 53, Issue 11. DOI: 10.1080/03601234.2018.1480164
  13. Wijesinghe D, Dassanayake K, Scales P, Sommer SG, Chen D. Effect of Australian zeolite on methane production and ammonium removal during anaerobic digestion of swine manure. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING. Elsevier Science. 2018, Vol. 6, Issue 1. DOI: 10.1016/j.jece.2018.01.028
  14. Law SQK, Mettu S, Ashokkumar M, Scales P, Martin G. Emulsifying properties of ruptured microalgae cells: Barriers to lipid extraction or promising biosurfactants?. COLLOIDS AND SURFACES B-BIOINTERFACES. Elsevier. 2018, Vol. 170. DOI: 10.1016/j.colsurfb.2018.06.047
  15. Stickland A, Skinner S, Cavalida R, Scales P. Optimisation of filter design and operation for wastewater treatment sludge. 12th World Filtration Congress (WFC). Elsevier Science. 2018, Vol. 198. DOI: 10.1016/j.seppur.2017.01.070

View a full list of publications on the University of Melbourne’s ‘Find An Expert’ profile