New Wood-based Tech Removes 80% Dye Pollutants in Wastewater

Researchers at Chalmers University of Technology have developed a new biobased material, a form of powder based on cellulose nanocrystals to purify water from pollutants, including textile dyes. When the polluted water passes through the filter with cellulose powder, the pollutants are absorbed, and the sunlight entering the treatment system causes them to break down quickly and efficiently. Laboratory tests have shown that at least 80 percent of the dye pollutants are removed with the new method and material, and the researchers see good opportunities to further increase the degree of purification.

Image/Graphic/Illustration: Chalmers University of Technology