Engineered Algae Captures Over 90% of Microplastics in Water

At the University of Missouri-Columbia, scientists have developed a method using algae to extract microplastics from aquatic environments. Under the guidance of chemical engineering professor Susie Dai, the team has altered the algae to generate limonene, a natural oil derived from citrus fruits. This modification enhances the algae's surface characteristics, enabling microplastic particles to adhere and form clumps that can be easily removed. Laboratory experiments demonstrated that the algae eliminated more than 90% of microplastics. Additionally, the algae help absorb surplus nutrients in wastewater, contributing to its purification. This innovative technology has the potential to be incorporated into city wastewater treatment facilities, facilitating the conversion of captured pollutants into biodegradable materials.