Atmospheric Water Harvesting Explored as New Resource in Australia

Researchers at the University of Newcastle are pioneering a new approach to water supply in arid regions by capturing moisture directly from the air. This atmospheric water harvesting technology, primarily in its research and development phase in Australia, holds promise for areas struggling with water scarcity.

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We will use the water for native seed production and land rehydration activities.

The "hydro harvester" is designed to capture water vapor from the atmosphere, producing distilled water that can be mineralized for drinking or used for agricultural purposes. The current prototype, housed in a shipping container, can generate 1,000 liters of water daily using solar power. A trial is planned for next year at a native tree nursery in Beverley, Western Australia, where the harvested water will be used for seed production and land rehydration.

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There are a lot of locations in Australia that don't have access to safe, clean drinking water. Deploying one of these units can be a real way to avoid the trucking of water in plastic bottles. We can reduce our plastic waste.

Lead researcher Priscilla Tremain highlighted the potential of this technology, especially in regions with low humidity, where traditional methods like fog harvesting are less effective. The hydro harvester works by capturing water on small particles that act like sponges, concentrating the moisture for extraction. If the Beverley trial proves successful, the technology could be scaled up to produce 10,000 liters per day and deployed to other water-stressed locations across Australia.

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If we can have a unit deployed on site that consistently produces water at constant cost, that's a real plus for communities that don't have access to that.

Tremain emphasized that atmospheric water generation is an "untapped resource" with significant growth potential. She believes this technology can provide a sustainable alternative to trucking water in plastic bottles, thereby reducing plastic waste and offering a consistent, cost-effective water supply for communities. Furthermore, it could potentially open up arid areas for farming and livestock, which are currently limited by water restrictions.

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The difference with the Hydro Harvester is, rather than cooling the air down, we capture the water in the air on small little particles that act like a sponge and soak up moisture in the air, and because we concentrate it we can extract it from these particles.