Fish biology inspires laundry microplastics clean up

Researchers have developed an innovative method to tackle microplastic pollution from laundry, drawing inspiration from the way fish filter food from water. This new technology could help reduce the amount of microplastics released into waterways each time clothes are washed.

Microplastics: A Growing Environmental Concern

Microplastics are tiny plastic fragments less than 5mm in size, often shed from synthetic fabrics during washing. These particles can pass through wastewater treatment plants and end up in rivers, lakes, and oceans, posing risks to aquatic life and potentially entering the food chain.

Nature-Inspired Solution

Scientists at the University of Surrey have created a prototype filter that mimics the gill raker system used by fish to separate food from water. The device, which can be fitted to washing machines, uses a series of angled slats to trap microplastic fibers while allowing water to flow through.

How the Technology Works

• The filter is installed in the washing machine’s outflow pipe.
• As water exits the machine, it passes through the filter’s slats.
• Microplastic fibers are caught by the slats, while clean water continues to drain.

This approach is designed to be energy-efficient and low-maintenance, as the slats are arranged to minimize clogging and allow for easy cleaning.

Promising Results from Early Testing

Initial laboratory tests have shown that the filter can capture up to 90% of microplastic fibers released during a typical laundry cycle. The research team is now working to refine the design and test its effectiveness in real-world conditions.

Potential for Widespread Impact

If adopted on a large scale, this technology could significantly reduce the volume of microplastics entering the environment from domestic laundry. The researchers hope that manufacturers will integrate similar filters into new washing machines, and that retrofit options will become available for existing appliances.

Looking Ahead

The team is continuing to develop the filter and explore ways to recycle the collected microplastics. Their work highlights the potential of biomimicry—using solutions inspired by nature—to address pressing environmental challenges.

For more details, visit the original report at this link.