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Plenary Speakers

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Prof. Martina Doblin

C3, University of Technology Sydney

"Inputs of anthropogenic nutrients and other contaminants into coastal waters"

Martina Doblin is Professor of Oceanography at the University of Technology Sydney and current Director and CEO of the Sydney Institute of Marine Science. Passionate about the ocean from a young age, she has been a marine researcher for over 20 years, leading highly successful research teams investigating the impacts of climate change, harmful algal blooms, and more recently the ecological impacts of emerging contaminants released into coastal waters. She is a board member of Australia’s Integrated Marine Observing System, and member of the National Marine Sciences Committee, providing scientifically-robust, practical advice on marine issues of national significance to Australia. Martina has a profile of scientific and public engagement, is an advocate for diversity in the science, technology, and engineering professions, and has a strong interest in accelerating solutions for improving water quality in the urban ocean.


"Biochar in the circular economy"

Johanna is the Sustainability Solutions Lead for Logan City Council and Logan Water. Jo has a Bachelor of Science majoring in Chemistry and Microbiology and a Master of Integrated Water Management.

Jo has had the pleasure of working for Logan City Council for over a decade in various roles in Logan Water. Jo started off in the laboratory where she gained hands on experience with the science of water.  

Jo utilises her background in science and integrated water management Jo has successful completed multiple projects to achieve successful outcomes and specialises in circular economy and resource recovery. 


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Johanna Johnson

Logan City Council 


Abraham Noe-Hays

Rich Earth Institute

"Ten years of urine diversion development in the United States: findings and lessons learned"

Abraham Noe-Hays is the Co-Founder and Research Director of the Rich Earth Institute, which operates the nation’s first community-scale urine recycling program, and conducts research relating to reclaiming resources from human waste. He is also the Chief Technology Officer of Rich Earth Tools, LLC, which develops technology for productive sanitation, particularly for concentrating and sanitizing source-separated urine and vacuum-flushed blackwater for fertilizer production.


"Circular Economy: A National agenda for Australia and Pacific"

Lisa McLean Managing Director of Circular Australia, a national independent NFP leading the transition to a 2030 Australian circular economy and a member of the federal Government’s Circular Economy Ministerial Advisory Group (CEMAG). She has been successfully advising industry and governments in developing new policy frameworks and regulations that bring about market change to enable the circular zero-carbon economy over the past 20 years in infrastructure, energy, water, waste and mobility sectors in the UK and Australia.



Lisa Mclean, CEO

Circular Australla

Django Seccombe

Sydney Water

"Sydney Water Unlocking the Circular Economy"

Django Seccombe, Circular Economy Manager, Western Sydney Development, Sydney Water

Django is an environmental engineer committed to unlocking new enterprise and creating a more sustainable economy in Greater Sydney and beyond.

Django’s experience spans operations, planning, strategy and policy development in the water sector. His current role focuses on establishing circular economy collaborations with customers in the rapidly growing Western Sydney. His projects focus on organic waste management, bioenergy, agribusiness and integrated water cycle management.


Neil Ruwan Palagedara,

Executive Manager

City of Sydney

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