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Professor Steven Pratt
Professor

Steven Pratt

Email: 
Phone: 
+61 7 336 54943

Overview

Background

Biography:

Associate Professor Steven Pratt is known internationally for his work on the development of polyhdroxyalkanoate (PHA) bioplastics, and their associated wood-fibre composites, and nationally for his delivery of training courses to environmental professionals.

He has authored over 150 scientific publications, with his major contribution to the field of environmental biotechnology being the invention of the TOGA® Sensor for examination and control of biotech/bioprocess systems.

He leads the ARC Industrial Transformation Training Centre for Bioplastics and Biocomposites at UQ, and has won awards for his outstanding contribution to supervision and enhancing the research supervision culture.

Research:

Assocaite Professor Pratt is a research and education leader in environmental engineering, known internationally for his work on the development of polyhdroxyalkanoate (PHA) bioplastics, and their associated wood-fibre composites, and nationally for his delivery of training courses to environmental professionals. His research is industrially relevant; he has published on models for effective industry-education partnerships.

He is now Director of the new ARC Industrial Transformation Training Centre in Bioplastics and Biocomposites. ARC Centre for Bioplastics and Biocomposites

Plastics are now ubiquitous in our lives, and the systems within our modern society could not function without these light weight, easily formable, strong, cheap, durable, and readily available materials. However, our success at engineering such useful materials has created a systemic problem, with more than 10 million tonnes of plastic leaking into the global environment annually. Urgent change is needed to address this ‘plastic crisis’, and biodegradable bioplastics, along with their natural fibre composites, will play a pivotal role in this transition to a more sustainable plastics economy. Already, we are witnessing unprecedented growth in the global bioplastics industry – the projected annual growth to 2030 is 16-30%, leading to an estimated global market value of US$40B. As the world transitions towards the integration of bioplastics into a more sustainable plastics economy, there is a real opportunity for Australia to transform our existing plastics industry. Australia is uniquely positioned to become a global leader in the emerging bioplastic and biocomposite industry this decade, supported by our abundance of the raw natural materials needed for their manufacture. The ARC Training Centre for Bioplastics and Biocomposites will capitalise on Australia’s abundant natural bioresources to drive advances in technology for the development of bioplastic and biocomposite products for the new bioeconomy.

Teaching and Learning:

Dr Pratt has taught a variety of courses in process engineering, including Environmental Systems Engineering, Wastewater Treatment, Clean Technology and Environmental Biotechnology.

Additionally, he has run the IWES Principles of Wastewater Treatment course, which has an intake of about 100 professionals each year.

Projects:

ARC ITTC for Bioplastics and Biocomposties.

Availability

Professor Steven Pratt is:
Available for supervision
Media expert

Qualifications

  • Bachelor (Honours) of Engineering, The University of Queensland
  • Doctor of Philosophy, The University of Queensland

Research impacts

Steven has authored nearly 150 scientific papers on related topics, with his major contribution to the field of environmental biotechnology being the invention of the TOGA® Sensor for examination and control of biotech/bioprocess systems. Widespread interest in TOGA® led to an agreement between Massey University and Scion for the commercialisation of the technology.

Works

Search Professor Steven Pratt’s works on UQ eSpace

154 works between 2000 and 2025

141 - 154 of 154 works

2006

Conference Publication

Luxury uptake of phosphorus by microalgae in waste stabilisation ponds

Powell, N., Shilton, A. N., Pratt, S. and Chisti, Y. (2006). Luxury uptake of phosphorus by microalgae in waste stabilisation ponds. 3rd Young Researchers Conference (YRC06), Nanyang Technological University, Singapore, 24th - 26th May 2006. International Water Association.

Luxury uptake of phosphorus by microalgae in waste stabilisation ponds

2005

Journal Article

‘Active’ filters for upgrading phosphorus removal from pond systems

Shilton, A., Pratt, S., Drizo, A., Mahmood, B., Banker, S., Billings, L., Glenny, S. and Luo, D. (2005). ‘Active’ filters for upgrading phosphorus removal from pond systems. Water Science and Technology, 51 (12), 111-116.

‘Active’ filters for upgrading phosphorus removal from pond systems

2004

Conference Publication

Modelling aerobic carbon oxidation and storage by integrating respirometric, titrimetric and off-gas CO2 measurements

Yuan, Z., Pratt, S., Zeng, R. and Keller, J. (2004). Modelling aerobic carbon oxidation and storage by integrating respirometric, titrimetric and off-gas CO2 measurements. 6th International Symposium on systems Analysis and Integrated Assessment in Water Management, Beijing, China, 3rd- 5th November, 2004.

Modelling aerobic carbon oxidation and storage by integrating respirometric, titrimetric and off-gas CO2 measurements

2004

Conference Publication

Comparison of methods for the determination of KLa02 for respirometric measurements

Pratt, S., Zeng, R., Yuan, Z. and Keller, J. (2004). Comparison of methods for the determination of KLa02 for respirometric measurements. 2nd International Conference on Automation in Water Quality Monitoring, Vienna, Austria, 19-20 April 2004. London, U.K.: IWA Publishing; Portland Press.

Comparison of methods for the determination of KLa02 for respirometric measurements

2004

Conference Publication

The rate of nitrate production during a two-stage nitrification batch reaction

Pratt, S., Gapes, D., Yuan, Z. and Keller, J. (2004). The rate of nitrate production during a two-stage nitrification batch reaction. 3rd IWA Specialised Conference on Sequencing Batch Reactor Technology (SBR3), Noosa, Australia, 22-26 February 2004. London, U.K.: IWA Publishing; Portland Press.

The rate of nitrate production during a two-stage nitrification batch reaction

2004

Journal Article

Modelling aerobic carbon oxidation and storage by integrating respirometric, titimetric and off-gas CO2 measurements

Pratt, Steven, Yuan, Zhiguo and Keller, Jurg (2004). Modelling aerobic carbon oxidation and storage by integrating respirometric, titimetric and off-gas CO2 measurements. Biotechnology and Bioengineering, 88 (2), 135-147. doi: 10.1002/bit.20199

Modelling aerobic carbon oxidation and storage by integrating respirometric, titimetric and off-gas CO2 measurements

2003

Journal Article

Online titrimetric and off-gas analysis for examining nitrification processes in wastewater treatment

Gapes, Daniel, Pratt, Steven, Yuan, Zhiguo and Keller, Jurg (2003). Online titrimetric and off-gas analysis for examining nitrification processes in wastewater treatment. Water Research, 37 (11), 2678-2690. doi: 10.1016/S0043-1354(03)00022-8

Online titrimetric and off-gas analysis for examining nitrification processes in wastewater treatment

2003

Journal Article

Development of a novel titration and off-gas analysis (TOGA) sensor for study of biological processes in wastewater treatment systems

Pratt, Steven, Yuan, Zhiguo, Gapes, Daniel, Dorigo, Marco, Zeng, Raymond J. and Keller, Jurg (2003). Development of a novel titration and off-gas analysis (TOGA) sensor for study of biological processes in wastewater treatment systems. Biotechnology And Bioengineering, 81 (4), 482-495. doi: 10.1002/bit.10490

Development of a novel titration and off-gas analysis (TOGA) sensor for study of biological processes in wastewater treatment systems

2003

Conference Publication

Characterising biological processes using a titration and off-gas analysis sensor.

Pratt, S., Yuan, Z. and Keller, J. (2003). Characterising biological processes using a titration and off-gas analysis sensor.. IWA Conference on Environmental Biotechnology: Advancement on Water and Wastewater Applications in the Tropics, Kuala Lumpur, Malaysia, 9-10 December 2003. Kuala Lumpur, Malaysia: International Water Association.

Characterising biological processes using a titration and off-gas analysis sensor.

2003

Conference Publication

Improving titrimetric techniques by modelling pH change in activated sludge systems

Pratt, S., Yuan, Z. and Keller, J. (2003). Improving titrimetric techniques by modelling pH change in activated sludge systems. 3rd World Water Congress of the International-Water-Association, Melbourne, Australia, 7-12 April, 2002. London, U.K.: IWA Publishing; Portland Press.

Improving titrimetric techniques by modelling pH change in activated sludge systems

2003

Other Outputs

The development of the TOGA sensor for the study of biological wastewater treatment systems

Pratt, Steven (2003). The development of the TOGA sensor for the study of biological wastewater treatment systems. PhD Thesis, School of Engineering, The University of Queensland. doi: 10.14264/106396

The development of the TOGA sensor for the study of biological wastewater treatment systems

2003

Conference Publication

Determination of the rates of ammonia oxidation and nitrte production using titrimetric and off-gas analysis (TOGA) data.

Pratt, S. and Yuan, Z. (2003). Determination of the rates of ammonia oxidation and nitrte production using titrimetric and off-gas analysis (TOGA) data.. New Zealand Wastewater Association Annual Conference, Auckland, 17-19 September 2003. Auckland: New Zealand Water and Waste Association.

Determination of the rates of ammonia oxidation and nitrte production using titrimetric and off-gas analysis (TOGA) data.

2001

Conference Publication

Model-based data analysis activated SL systems: A case study with a titrimetric respirometer

Pratt, S., Yuan, Z. and Keller, J. (2001). Model-based data analysis activated SL systems: A case study with a titrimetric respirometer. Environmental Engineering Event 2001, Noosa, Queensland, 20/11/2001 - 23/11/2001. Noosa, Queensland: Multimedia Technology Unit - Flinders University.

Model-based data analysis activated SL systems: A case study with a titrimetric respirometer

2000

Conference Publication

Development of the H-Doc Biosensor for Characterisation of Activated Sludge Kinetics and Wastewater Composition

Pratt, S., Yuan, Z. and Keller, J. (2000). Development of the H-Doc Biosensor for Characterisation of Activated Sludge Kinetics and Wastewater Composition. 4th Annual Australian Environmental Engineering Research Event, Victor Harbor, South Australia, Australia, 21-24 November,1999. Australia: EERE Organising Committee.

Development of the H-Doc Biosensor for Characterisation of Activated Sludge Kinetics and Wastewater Composition

Funding

Current funding

  • 2022 - 2027
    ARC Training Centre in Bioplastics and Biocomposites
    ARC Industrial Transformation Training Centres
    Open grant
  • 2022 - 2027
    EAP - Biopolymers to deliver bioactive compounds that reduce enteric methane
    Meat & Livestock Australia
    Open grant

Past funding

  • 2023
    Opportunity for PHA Production from Corn - A Preliminary Concept Evaluation
    Lihua Starch Pty Ltd
    Open grant
  • 2023 - 2024
    PHA Bioplastic from Qld Sugar - Pilot Plant Development Project
    Queensland Government Department of Environment and Science
    Open grant
  • 2021 - 2022
    Development of novel biodegradable packaging for marine products
    Innovation Connections
    Open grant
  • 2021 - 2022
    A roadmap to tackle marine plastic pollution in Malaysia
    Commonwealth Department of Foreign Affairs & Trade
    Open grant
  • 2021
    PHA Meat Tray Prototype
    The Minderoo Foundation Pty Ltd
    Open grant
  • 2020 - 2023
    Bioplastics in the environment: lifetimes and toxicology
    ARC Discovery Projects
    Open grant
  • 2019 - 2024
    Efficient CO and CO2 conversion to biopolymers using phototrophic bacteria
    ARC Discovery Projects
    Open grant
  • 2018 - 2023
    MLA - Wastes to Profits (Meat and Livestock Australia grant administered by Queensland University of Technology)
    Queensland University of Technology
    Open grant
  • 2017 - 2021
    Tough bio-derived and biodegradable wood plastic composites
    ARC Linkage Projects
    Open grant
  • 2017 - 2023
    Mitigation of silica nanoparticle scaling in water treatment
    ARC Linkage Projects
    Open grant
  • 2017 - 2021
    Environmentally responsive biocomposite fertilisers
    Queensland Government Advance Queensland Innovation Partnerships
    Open grant
  • 2017 - 2018
    Novel catalytic process for sustainable diesel production from waste (CRC-P administered by Eco Fuel Innovations Ptd Ltd)
    Eco Fuel Innovations Pty Ltd
    Open grant
  • 2017 - 2018
    More profit from Nitrogen - New technologies and managements: transforming nitrogen use efficiency in cane production
    Queensland Department of Agriculture and Fisheries
    Open grant
  • 2015 - 2016
    Fertilisers from piggery liquid effluent and solids via nutrient extraction and solid formulations
    Queensland Department of Agriculture and Fisheries
    Open grant
  • 2015 - 2017
    Intracellular manufacturing - high performance biomaterials from methane
    ARC Discovery Projects
    Open grant
  • 2015
    Mitigation of silica-associated scaling in CSG water treatment facilities
    QGC Pty Limited
    Open grant
  • 2014 - 2017
    Novel bioderived and biodegradable wood plastic composites from wastes
    ARC Linkage Projects
    Open grant
  • 2014
    Generating advanced bioplastics from pulp and paper waste streams - technology for making PHA from C1 carbon
    UQ Collaboration and Industry Engagement Fund - FirstLink
    Open grant
  • 2012 - 2015
    Adsorption on activated alumina: mitigating fouling of water treatment processes caused by deposition of silica, organics and hardness ions
    ARC Linkage Projects
    Open grant
  • 2012 - 2015
    Stabilisation of algal biomass harvested from coal seam gas associated water to generate a renewable, high nutrient resource
    ARC Linkage Projects
    Open grant
  • 2012
    Potential for mass algal production in Rio Tinto Alcans's wastewater ponds
    UniQuest Pty Ltd
    Open grant
  • 2011 - 2014
    Adsorption technologies for minimisation of fouling and scaling by the combined removal of hardness, silica and organics
    Origin Energy Resources Limited
    Open grant
  • 2011 - 2014
    Stabilisation of algal biomass harvested from CSG produced water holding ponds and water treatment facilities
    Origin Energy Resources Limited
    Open grant
  • 2011 - 2012
    Testing the removal of organic compounds from highly saline water
    Origin Energy Resources Limited
    Open grant
  • 2011
    Queensland-China Climate Change Fellowship Program: Sino-Australian academic exchange on watershed water quality management
    Queensland-China Climate Change Fellowships
    Open grant
  • 2010 - 2013
    Next generation bioplastics: Production of PHA bioplastics from organic waste
    ARC Linkage Projects
    Open grant
  • 2009 - 2010
    Production of algae biofuel: a multi-benefit solution for managing coal seam gas (CSG) water
    UQ FirstLink Scheme
    Open grant
  • 2008 - 2009
    Microstructure of PHA bioplastics produced in mixed cultures
    Open grant

Supervision

Availability

Professor Steven Pratt is:
Available for supervision

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Available projects

  • PhD scholarships in Bioplastics

    Scholarships available, up to $45,000 p.a. tax free

    12-month industry placements

    There is unprecedented growth in demand for bioderived and biodegradable materials. The new ARC Training Centre in Bioplastics and Biocomposites will capitalise on Australia’s abundant natural bioresources to drive advances in technology for the development of bioplastic and biocomposite products for the new bioeconomy. We are a collaboration between industry, The University of Queensland (UQ) and Queensland University of Technology (QUT). Our vision is to perform leading edge research and to develop industry-ready specialists to underpin Australia’s transition to a globally significant bioplastics and biocomposites industry.

    Up to 3 scholarships are available for outstanding PhD candidates to work in a multidisciplinary research team, embedded in industry. PhD projects are available in each of the following themes: Bioresource transformation, Bioplastic manufacture, Bioplastics applications, Effecting change and sustainability assessment.

    We have a critical focus on providing an exceptional PhD experience. We will deliver targeted training and development opportunities including: leadership, innovation, emotional intelligence, critical thinking and project management.

    As a Centre student you will receive mentoring from academic and industry leaders, access internal funding opportunities, and gain real world experience through extensive industry placements.

  • Green additives and fillers

    ITTC for Bioplastics and Biocomposites - Fully funded PhD Scholarship of $35,000 pa (with potential for a top up of $10,000 pa for outstanding students). Applicants with skills/experience in chemistry, chemical engineering, material science or material processing are encouraged to apply.

    There is booming demand for eco-materials, based on biodegradation polymers. But commercially relevant bioplastics are much more than the biopolymers upon which they are based.

    This project considers the impact of additives and fillers on degradation rates of bioplastics (and the mobilisation of those additives and fillers to the environment) – with the aim of developing alternative ‘green’ fillers and additives.

    This project is developed in partnership with the Minderoo Foundation, with the view to facilitating the transition to a ‘greener’ plastics future.

  • Sustainable bioplastics

    ITTC for Bioplastics and Biocomposites - Fully funded PhD Scholarship of $35,000 pa (with potential for a top up of $10,000 pa for outstanding students). Applicants with skills/experience in chemistry, chemical engineering, material science or material processing are encouraged to apply.

    Bioplastics are forecast to play an increasingly important role in addressing the plastic pollution problem. However, not all bioplastics are necessarily benign – even biodegradable bioplastics.

    The aims of this project are to develop commercially relevant bioplastic products from polyhydroxyalkanoate (PHA) and to understand the (bio)degradation and potential impacts of those bioplastics in various environments.

    The project is developed in partnership with the Minderoo Foundation, with the view to facilitating production of environmentally benign alternatives to conventional packaging materials.

  • Sustainable bioplastics

    Bioplastics are forecast to play an increasingly important role in addressing the plastic pollution problem. However, not all bioplastics are necessarily benign – even biodegradable bioplastics.

    This project facilitates bringing PHA bioplastics, which are bioderived and truly biodegradable, to market.

    Contact me for further info.

Supervision history

Current supervision

Completed supervision

Media

Enquiries

Contact Professor Steven Pratt directly for media enquiries about:

  • biomaterials
  • bioplastics
  • wastewater
  • water
  • wood plastic composites

Need help?

For help with finding experts, story ideas and media enquiries, contact our Media team:

communications@uq.edu.au