Dec 6, 2025 01:00 AM
https://www.eurekalert.org/news-releases/1108700
INTRO: Wastewater from washing machines is considered a major source of microplastics – tiny plastic particles that are suspected of harming human and animal health. Researchers at the University of Bonn now have developed a filter to curb this problem. Their filter was inspired by the gill arch system in fish. In initial tests, the now patent-pending filter was able to remove over 99 percent of plastic fibers from washing machine wastewater. The results now have been published in the journal npj Emerging Contaminants.
Wastewater from a washing machine in a four-person household produces up to 500 grams of microplastics each year, mainly caused by textile abrasion. The household appliances are thus one of the most important sources of the tiny particles. Microplastics currently make their way directly into the sewage sludge of wastewater treatment plants. As this sludge is often used as fertilizer, the fibers ultimately end up on the fields.
Many manufacturers have thus been searching for ways to remove microplastics from washing water to prevent them from entering the environment. “The filter systems available so far, however, have various disadvantages,” explains Dr. Leandra Hamann from the Institute for Organismic Biology at the University of Bonn. “Some of them quickly become clogged, others do not offer adequate filtration.” (MORE - details, no ads)
INTRO: Wastewater from washing machines is considered a major source of microplastics – tiny plastic particles that are suspected of harming human and animal health. Researchers at the University of Bonn now have developed a filter to curb this problem. Their filter was inspired by the gill arch system in fish. In initial tests, the now patent-pending filter was able to remove over 99 percent of plastic fibers from washing machine wastewater. The results now have been published in the journal npj Emerging Contaminants.
Wastewater from a washing machine in a four-person household produces up to 500 grams of microplastics each year, mainly caused by textile abrasion. The household appliances are thus one of the most important sources of the tiny particles. Microplastics currently make their way directly into the sewage sludge of wastewater treatment plants. As this sludge is often used as fertilizer, the fibers ultimately end up on the fields.
Many manufacturers have thus been searching for ways to remove microplastics from washing water to prevent them from entering the environment. “The filter systems available so far, however, have various disadvantages,” explains Dr. Leandra Hamann from the Institute for Organismic Biology at the University of Bonn. “Some of them quickly become clogged, others do not offer adequate filtration.” (MORE - details, no ads)