Prof. Eric van Hullebusch
Université Paris Cité, France
Biogrpahy: Prof. Eric D. van Hullebusch received his PhD (Aquatic Chemistry and Microbiology) from Université de Limoges (France) in 2002. From November 2002 until October 2004 he was a Marie Curie Postdoctoral fellow at Wageningen University & Research (the Netherlands) where his research focused on the optimization of anaerobic granular sludge reactors by studying the speciation, bioavailability and dosing strategies of trace metals. In 2005, he was appointed as associate professor in biogeochemistry of engineered ecosystems at Université Paris-Est (France). In 2012, Eric van Hullebusch obtained his Habilitation qualification in Environmental Sciences from Université Paris-Est (France). The title of his Habilitation thesis is “Biofilms in the environment: from anaerobic wastewater treatment to material bioweathering”. From September 2016 until August 2018, he worked at IHE Delft as chair professor in Environmental Science and Technology and head of the Pollution Prevention and Resource Recovery chair group. In September 2018, he joined Institut de Physique du Globe de Paris (France) as full professor in Biogeochemistry of engineered ecosystems.
Speech title "MedInCircle: Integrated Circular Management of Water, Nutrients, and Bioresources in Mediterranean Agri-Food Systems"
Abstract-The
Mediterranean region faces growing
pressures from climate change, water
scarcity, and food insecurity, posing
significant risks to the resilience of
its agri-food systems. MedInCircle:
Future-Proofing the Mediterranean
Agri-Food Chain through Circular
Management of Water, Nutrients, and
Bioresources addresses these
challenges by developing circular and
integrated strategies for resource
management in the agri-food sector.
The project implements a modular
platform for the recovery, treatment,
and valorization of water, wastewater,
and agri-food residues. Key innovations
include biological treatments enabling
safe ferti-irrigation and reuse of
agricultural drainage water, nutrient
recovery from domestic and industrial
waste streams, and upcycling into
slow-release microbial fertilizers and
biostimulants. A particular focus is
placed on monitoring and mitigating
organic and inorganic micropollutants in
treated wastewater to ensure
contaminant-safe reuse. The agronomic
performance and impact on soil
microbiomes of these recovered resources
are evaluated on typical Mediterranean
crops.
MedInCircle also integrates cost-benefit
assessments and stakeholder engagement
to promote practical applicability and
social acceptance. By closing nutrient
and water loops while ensuring water
quality, the project advances
sustainable, resilient, and circular
Mediterranean agri-food chains.
Acknowledgement : The MedInCircle:
Future-Proofing the Mediterranean
Agri-Food Chain through Circular
Management of Water, Nutrients, and
Bioresources (MedinCircle) project
is part of the PRIMA Programme supported
by the European Union.
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Prof. R. J. (Dick) Haynes
The University of Queensland, Australia
Biogrpahy: Professor Haynes works in the areas of soil and environmental science. His present research interests are in the use and recycling of industrial, agricultural and municipal wastes and minimising their effects on the environment. He has extensive experience having worked as both an applied research scientist and as a university professor and has worked in New Zealand, South Africa and Australia. He has published over 170 original research papers in international journals, over 20 review papers in international volumes as well as many conference and extension papers and contract reports. He has been an invited keynote speaker at 7 international conferences and has served on the editorial board of 4 international research journals. He has acted as principal supervisor and co-supervisor of PhD, MSc and honours students in both South Africa and Australia. Professor Haynes has carried out research in commercial horticultural, pastoral, arable and forestry production as well as in small-holder semi subsistence agriculture. He has also worked on bioremediation of soils contaminated with organic pollutants, rehabilitation of mined sites, application of organic and inorganic wastes to soils and the effects of heavy metal contaminants on soil processes. His research has been mainly in the areas of applied soil chemistry and soil microbiology/biology with links to soil physical properties and to pollution of air and water. He has specialised in working on applied problems and maintains strong links with industry. Major areas of research have included the role of grazing animals in the fertility of pastoral soils, N cycling and gaseous and leaching losses from arable and pastoral systems, soil quality and soil degradation under agricultural land use, effects of soil contaminants on soil processes, rehabilitation and remediation of contaminated, degraded and mined sites and use of wastes as soil amendments
Speech title "Revegetation of bauxite processing residues – an exercise in environmental engineering"
Abstract-Bauxite is processed in alumina refineries by the Bayer process in which Al-containing minerals are dissolved in hot NaOH. The alumina produced is then transported to an aluminium smelter where aluminium metal is produced. The insoluble solids (bauxite processing residues) produced during the refining of alumina are deposited in impoundments surrounding the alumina refinery. For every tonne of alumina produced, 1-2 tonnes of residues are produced and, on a global basis, annual production of residue is about 120 million tonnes while the legacy over the last 120 years is about 2.7 billion tonnes. The material is red in colour due to its high content of iron oxides and is composed of mainly fine, silt-sized particles (0.002-0.02 mm dia.). As a result it is often referred to as red mud. Establishment of a vegetation cover on the residue waste areas is normally an essential closure strategy for the refinery. Major limitations to plant growth in residues include salinity, sodicity, alkalinity, Al toxicity and deficiencies of macro- and microelements. Physical properties are also problematic since residue mud consolidates to form a solid mass that waterlogs easily and can also dry to form a massive structure. Before establishment of vegetation it is desirable to leave the area for a decade or more to allow excess salts (especially Na) and alkalinity (as bicarbonate) to leach down the profile. The material must also be left to dry during which time it undergoes an irreversible shrinkage, solidification and cracking due to the presence of pozzolanic Al silicates and aluminates. Gypsum (calcium sulphate) can then be cultivated into the surface horizon. This reduces pH by inducing precipitation of alkalinity as CaCO3. It also displaces Na with Ca and promotes further leaching of Na. Organic amendments (e.g. composts, animal manures) can then be applied to supply nutrients, increase CEC and improve physical conditions. Addition of inorganic fertilizers to supply nutrients is also essential. The type of vegetation established is often dependant on the nature of the surrounding vegetation (pasture or native vegetation). In either case, plants introduced need to be adapted to climatic conditions in the locality as well as being tolerant to saline, sodic conditions. With careful management a vigorous vegetation cover can be established and long-term revegetation trials have shown plants continue to grow well.

Prof. Eric J. Strauss
Michigan State University, USA
Biogrpahy: Dr. Eric Strauss is Professor Emeritus of Urban and Regional Planning at Michigan State University. He received his J.D. from Northwestern University School of Law and his PhD in Urban and Regional Planning from the University of Wisconsin-Madison. Prior to joining Michigan State, he taught at the University of Kansas where he was the Chair of the Graduate Program in Urban Planning and Indiana University. While at Michigan State University, he was a former director of the URP program. In the School of Planning, Design and Construction. He also was a Visiting Professor at universities in South Korea, Ireland, and Germany. He was a Fulbright Scholar to Panama and to Romania. He was named the “Outstanding Site Visitor” by the Planning Accreditation Board for 2022. He is the current President of the Advisory Academic Council on Signage Research and Education (AACSRE). Dr. Strauss had more than 40 years of experience in planning practice in both the public and private sector. He was a planner for federal and state governments, a city and county planning director, a city attorney, and a consultant to more than 50 organizations, both public and private, on a wide variety of planning related issues. Strauss prepared many comprehensive plans and land use regulations at all levels of detail for many communities. His current research interests include measuring the impact of climate action plans adopted by local governments and universities as well as policies for sustainability. He has published articles in the fields of renewable energy, climate change and climate refugees.
Speech title "Integrating Climate Security into U.S. University Energy Planning and Policies: A Pathway to Sustainable Governance"
Abstract-As public
institutions with significant energy
demands and policy influence, U.S.
universities play a crucial role in
advancing climate security through
integrated energy planning and
governance innovation. This study
examines the incorporation of climate
security principles into public
universities' energy policies and
frameworks, emphasizing their potential
to drive sustainable governance.
The research evaluates institutional
practices and perceptions within campus
populations using a mixed-methods
approach, including policy document
analysis, semi-structured stakeholder
interviews, and community surveys. The
findings reveal significant variability
in approaches to climate security
integration. Universities are
categorized into “proactive
institutions” that formally embed
climate security principles into their
energy policies and align them with
broader climate objectives, and
“reactive institutions,” which treat
climate-related risks as operational
concerns without strategic alignment to
overarching sustainability goals. This
dichotomy underscores the need for more
comprehensive frameworks that transcend
reactive measures to address climate
risks holistically.
The research identifies three critical
policy pathways for mainstreaming
climate security: (1) aligning campus
energy goals with regional and national
climate strategies to ensure coherence;
(2) strengthening governance through
interdepartmental collaboration and
accountability mechanisms to address
risks comprehensively; and (3) adopting
justice-oriented engagement practices to
prioritize equitable access to resilient
energy systems and address social equity
alongside environmental considerations.
This research highlights the
transformative potential of
institutional leadership and
multi-stakeholder collaboration by
conceptualizing universities as ‘policy
laboratories’ for climate-secure energy
governance. Universities have the
opportunity to model best practices and
influence broader societal transitions
toward climate justice and security. In
conclusion, advancing climate security
on university campuses requires shifting
from reactive to strategic approaches in
energy planning. By prioritizing policy
coherence, fostering collaboration, and
integrating principles of equity and
justice, universities can lead the way
in addressing one of the most pressing
challenges of our time.