In the early phase of our project, we set out to address PFAS contamination through the Purity Cube- a compact, deep-tech purification device that neutralises persistent pollutants at a molecular level. The Cube harnesses UV-C activation, titanium dioxide photocatalysis, and real-time AI sensor feedback (e.g., HYLIGHT and VISIR2), offering an accessible household solution for safe drinking water without relying on external filtration networks. However, our investigation into Melbourne’s long-term climate projections and infrastructure stressors raised deeper questions: would treating contaminated water still be viable by 2050, or would clean water itself become inaccessible?
We expanded our scope. One of our first steps was to benchmark existing household filtration systems to assess their future relevance in Melbourne. We evaluated solutions such as Big Berkey, Hydroviv, Epic Nano Pitcher, and Springwell C1, compiling a comparative matrix to assess performance.
While each had unique benefits, they shared significant limitations: dependence on piped supply, high maintenance costs, and inadequate filtration of PFAS under Australian conditions. Several required professional installation and provided insufficient volumes for growing households. These findings emphasised the need to move from remediation to alternative sourcing models.
This realisation led us to Atmospheric Water Generation (AWG)—a system that extracts moisture from ambient air and converts it to potable water, independent of pipelines.
Although solutions like Watergen Genny and Majik Water exist, they are typically expensive, slow, and energy-intensive—rendering them inaccessible to many users. Still, we saw potential to reimagine AWG using circular design principles, AI optimisation, and deep-tech innovation
Our early concept proposes a low-cost, modular AWG system powered by solar energy, featuring desiccant-based or condensation extraction, PFAS nanofiltration, and adaptive AI algorithms that optimise generation based on real-time conditions. The design is scalable for diverse contexts—from city flats to remote homes.
We embraced a user-centred, future-oriented process, applying speculative design, stakeholder mapping, and behavioural frameworks like BJ Fogg’s model. The BJ Fogg Behaviour Model guided our thinking around user motivation and simplicity in AWG interface design, while speculative design helped us reframe the infrastructure itself—not just the device. Research revealed users favour systems that are intuitive, sustainable, and emotionally engaging—even amid uncertainty.
Why AWG for Melbourne 2050?
Melbourne will likely experience more heatwaves and less reliable rainfall. As central systems face mounting pressure, AWG offers a decentralised, low-impact solution that addresses both contamination and scarcity. Integrated with renewables and modular in form, it supports equitable access to clean water from public spaces to homes and emergencies.
Next Steps
At this exploratory stage, our priorities include:
- Conduct energy and material performance tests, focusing on graphene filtration efficiency, solar-thermal uptake, and desiccant regeneration cycles.
- Run public-facing AR-based simulations using speculative Aerozen visuals at Federation Square and Carlton Gardens to test perceptions of safety, trust, and emotional resonance.
- Initiate conversations with Sustainability Victoria, local councils, and urban water planners to explore pilot installation feasibility and regulatory alignment for decentralised AWG.
- Build early storyboards and environmental visual cues to inform Aerozen’s future public prototype experience.
Conclusion
Our journey from Purity Cube, through benchmarking, to AWG exploration marks a pivotal shift in our design thinking. It challenges conventional assumptions around water sourcing and presents a speculative yet plausible vision for a decentralised and resilient water future for Melbourne.
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