Filtering water in the washing machine reduces water consumption by 30%
Through a joint development with Dow Water & Process Solutions (DW&PS), Haier Group has commercialized the first Casarte eco-friendly washing machine using Dow ultrafiltration (UF) technology. The washing machine is designed and built with the new Dow Purinze UF module, which facilitates more than 30% reduction in water consumption while improving water quality by removing as much as 99 percent of common bacteria.
“With the integration of the UF module, we are bringing more sustainable clothes washing to life,” said Wenwei Li, R&D director for the Haier Casarte eco-friendly washing machine. “The improved water quality of this machine delivers exceptional cleaning performance. The Purinze UF module removes as much as 99% of common bacteria during washing, which significantly improves hygiene and brings healthier clothes to the users. Because of the excellent filtration performance, water consumption was reduced by more than 30% -- another significant breakthrough in washing machines, addressing water scarcity issues and resonating well with a more and more sustainable consumer lifestyle.”
According to DW&PS, it is an industry first to apply UF technology to washing machines. The UF module runs continuously during washing, and based on testing performed by Casarte, can last as long as the lifetime of the washing machine. Composed of porous hollow fibers about 20 to 30 nm in diameter, the module allows water molecules to pass through while blocking bacteria and mites. As a result, as many as 99% of common bacteria and mites, as well as other dirt and contaminants, are removed from the water and discharged from the washing machine.
“This successful application speaks to our commitment to providing innovative solutions that address world challenges, such as the need for hygiene in a water-stressed world,” said Cedella Beazley, filtration business unit director for DW&PS. “At Dow, we listen to the market before we innovate. We will continue to explore new opportunities in the residential appliance market segment, bringing more sustainable solutions to consumers.”