Creating the frameworks and evidence needed to enable safe, sustainable and scalable water reuse.

• Policy, regulation and governance
• Regulatory and institutional barriers
• Guidelines, standards and permit systems
• Water reuse safety planning
• Risk frameworks and quantitative risk assessment
• Validation frameworks and requirements
• Evidence-based regulation and decision-making
• Water planning and allocation
• Cross-jurisdictional and regional approaches
• Comparing international regulatory approaches and lessons
• Competing water demands, prioritisation and allocation of recycled water
• Political and government acceptance

Building the confidence, investment and support needed to turn reuse opportunities into reality.

• Public confidence, social licence and trust
• Customer and community engagement
• Awareness, education, communication and behaviour
• Economics, pricing, financial viability and business cases
• International collaboration and knowledge exchange
• Cross-sector and multidisciplinary partnerships
• Valuing the broader environmental and resilience benefits
• Funding, financing and investment models
• Partnerships and new business models
• Equity and affordability
• Institutional and utility readiness
• Moving from pilot and demonstration to implementation at scale
• Lessons from successful, stalled and unsuccessful projects

Advancing safe, integrated and fit-for-purpose reuse within cities and communities.

• Direct potable reuse
• Indirect potable reuse
• Non-potable urban reuse
• Dual Distribution and neighbourhood-scale reuse
• Landscape and public-space irrigation
• Stormwater harvesting and integrated water systems
• Fit-for-purpose water quality
• Integration with existing water and wastewater systems
• Operational experience and lessons from established schemes

Expanding fit-for-purpose reuse across industry, agriculture and emerging water users.

• Agricultural reuse and irrigation
• Salinity, sodicity and long-term soil health
• Crop suitability, nutrients and food safety
• Farmer and end-user acceptance
• Industrial reuse
• Reclaimed water for industry use
• Mining and energy
• Data centres and emerging high-demand users
• Water quality requirements for different applications
• Regional and remote applications
• Environmental impacts of recycled water use

Advancing treatment performance, safety, efficiency and reliable operation.

• Advanced treatment technologies
• Membrane processes
• Nature-based treatment
• Integrated and hybrid systems
• Treatment performance and optimisation
• Technical validation and monitoring
• Water quality and fit-for-purpose treatment
• Pathogens and microbial risks
• Antimicrobial resistance and antibiotic resistance genes
• PFAS and contaminants of emerging concern
• Process reliability and operational performance
• Automation, monitoring and control
• Digital water, data and artificial intelligence
• Asset, workforce and operational readiness

Maximising the value of water and resources while supporting climate-resilient, circular systems.

• Circular water systems and closing water cycles
• Water-energy-carbon nexus
• Water-energy-food nexus
• Climate adaptation and drought resilience
• Energy efficiency and energy recovery
• Nutrient and materials recovery
• Residuals, concentrate and brine management
• Biosolids and sludge
• Life-cycle assessment
• Greenhouse gas emissions and carbon implications
• Recycled water for hydrogen and emerging applications
• Environmental benefits and impacts
• Resource efficiency and system optimisation
• Low-emission, nature-based and regenerative approaches

Cross-disciplinary, emerging or future-focused topics that don't align with the themes above.

The topics listed are indicative only. Submissions addressing other aspects of water reuse are encouraged.