Lucknow, Dec. 16 -- Scientists at Harcourt Butler Technical University (HBTU) have developed a biodegradable filter capable of removing toxic dyes such as methylene blue and Congo red from contaminated water, offering a promising solution for the textile and leather industries.

Innovative Film-Based Technology

The filter is made from a biodegradable film developed using polyvinyl alcohol (PVA) and starch, integrated with carbon nanotubes derived from plastic waste.

These materials were combined to form cross-linked nanocomposite films that are durable, reusable and fully biodegradable. The filter can be reused 15 to 20 times depending on the level of contamination.

According to the researchers, the film successfully removed 96.43 perc...