HKRITA separates microplastics with sound waves
The Hong Kong Research Institute of Textiles and Apparel (HKRITA), with support from H&M Foundation, has created a machine that can separate microplastics from wastewater using soundwaves, claiming it could have a significant impact on the fashion industry's footprint.
Acousweep uses sweeping acoustic waves in a specially shaped chamber to physically trap and separate microplastic fibres from wastewater.
No chemical, solvent or biological additives are needed and it can be fitted to any wastewater facility.
The separated microplastics drip into a collection tank for further treatment.
The lab scale treatment system handles 20 litres of water per hour while a bigger version will be able to treat 5,000 to 10,000 litres of water per hour.
Christiane Dolva, strategy lead at H&M Foundation, said: "As a non-profit, we have the urgent opportunity to create change by supporting disruptive research that could lead us there. Innovation is transformation and Acousweep is proof that it's worth investing in research.”
