The presence of micro and nanoplastics in drinking water has generated growing concern due to their potential to infiltrate organisms and accumulate in human tissues. Although the long-term effects are still being investigated, science is advancing to mitigate their impact.
In Argentina, a group of researchers from INTEMA (CONICET-UNMdP) in Mar del Plata is developing a domestic filter that promises to eliminate these particles in just four hours. Under the direction of Carla di Luca, this project has received the prestigious Franco-Argentine Innovation Distinction 2025.
Elimination of micro and nanoplastics from water
Microplastics, although invisible to the naked eye, represent a major environmental challenge. Nanoplastics, even smaller, can pass through conventional filters, complicating their elimination. This problem is especially relevant for those who rely on domestic filtration systems, as not all are equipped to handle these tiny particles.
In Europe, unified methodologies have been developed to measure these particles in drinking water, facilitating accurate comparisons between countries and helping to better understand the problem.
The Argentine innovation is based on a two-stage process. First, it uses UVC photolysis to alter the surface of the particles, making them easier to trap. This technology does not seek to destroy but to chemically modify the plastics to facilitate their retention.
The next step involves the use of porous materials that act as adsorbents, manufactured from industrial waste. This process not only improves the filter’s effectiveness but also promotes a circular economy approach.
Most current filtration systems focus on removing sediments and chlorine, but they are not prepared to handle micro and nanoplastics. Advanced methods such as ultrafiltration and reverse osmosis, although effective, are costly and energy-intensive.
The team behind this innovative filter is evaluating its effectiveness under laboratory conditions with plans to develop a prototype for more extensive testing. If the tests are successful, collaboration with companies in the water treatment sector will be sought to bring the technology to market.
Meanwhile, families can contribute by reducing the use of disposable plastics and using alternatives such as reusable bottles. These small changes can decrease the amount of plastics reaching the environment, reducing contamination in the food chain.
For more details, the official statement is available at CONICET.
