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New Method for Removing Toxic Dyes from Wastewater

 How to remove harmful substances in textile dyeing water has always been a major problem for the textile and apparel industry around the world. Ramkumar ’s laboratory at Texas Tech University in the United States has developed a new method for removing harmful contaminants from textile dyed water. The laboratory found that this method is safer, easier to remove, and cheaper than traditional methods.

The traditional wastewater treatment process is inefficient and not environmentally friendly. In addition, the dyeing wastewater has temperature resistance and cleanliness resistance, so most untreated harmful dyeing wastewater is discharged into the environment without treatment. 

Seshadri Ramkumar, a professor of environmental toxicology at Texas Tech University, and Lihua Lou, a doctoral student, worked with researchers in the Departments of Chemical and Mechanical Engineering to discover a new way to degrade dyed water That is, the dye-contaminated water is filtered through a special nanofiber web and exposed to visible light, which is called the "photodegradation" method. They said that using visible light is indeed a good way. Visible light is a green energy and renewable. In addition, photodegradation using visible light is harmless to the environment, cost-effective, and easy to handle. This method makes the cost of decolorization lower in all industrial fields.