The shortage of drinking water affects about 2 billion people worldwide, according to WHO and UNICEF. In this context, a team from the Norwegian University of Science and Technology (NTNU) and the research center SINTEF developed a new plastic material capable of extracting water from the air even with low humidity, which raises hopes for arid regions and vulnerable communities.
The absorbent polymer
The invention consists of an absorbent polymer, similar to that used in disposable diapers, which captures atmospheric moisture and converts it into water suitable for human consumption.
- Composition: flexible elastomer + absorbent polymer.
- Functioning: retains large volumes of water and releases it through heat.
- Durability: withstands up to 120 hours of continuous use without degrading.
This material can be manufactured in different forms —sheets, coatings, or 3D printed pieces— and even from biomass, reducing its environmental impact.
Differences with current technologies
Traditional generators rely on condensation by cooling the air, which involves high energy costs in dry environments. In contrast, the Norwegian polymer maintains its efficiency in desert environments, surpassing materials like silica gel.
According to researcher Roberto Mennitto, the main goal was to reduce production costs through inexpensive raw materials and simple processes, avoiding toxic solvents.
Application potential
The material can be used in:
- Defense and humanitarian aid: quick access to water in conflict or emergency zones.
- Homes and offices: domestic systems for generating drinking water.
- Arid regions: rural communities with irregular supply.
It is estimated that the market for atmospheric water generators will exceed USD 4 billion by 2030, reflecting the relevance of this innovation.
Next steps
The team is seeking funding for prototypes and technology transfer to enable mass production. Startups have already shown interest, which could accelerate its arrival in needy regions.
The project’s expansion will depend on collaboration between chemistry and engineering specialists to refine the process and ensure safe access to water in any environment.
A strategic resource against climate change
Bottled water is expensive and its availability limited in arid zones. This new polymer is emerging as an efficient and accessible solution, capable of ensuring drinking water in extreme scenarios and contributing to resilience against climate change and population growth.
