Topic: Environment

Researchers at the University of Missouri created a special type of algae that can remove microplastics from water. This could help clean up polluted waterways and even turn the collected plastic into biodegradable products.

Microplastics are tiny pieces of plastic that contaminate our environment, including drinking water. Susie Dai, a professor at the University of Missouri, has developed a way to remove these microplastics using specially engineered algae. This algae produces a natural oil called limonene, which changes its surface properties and makes it repel water. When microplastics meet this algae in water, they naturally stick to it. The process forms clumps that sink to the bottom, making it easier to collect and remove the microplastics.

Dai's goal is not only to clean up polluted waterways but also to recycle the collected plastic into safer biodegradable products, such as composite plastic films. This approach could tackle three issues at once: removing microplastics from drinking water, cleaning wastewater, and creating useful products.

The study has already shown promising results, with an efficiency of 91.4% in removing microplastics within just one hour. The researchers also demonstrated a strategy to convert the algae into plastic composites with unique properties. This could lead to a sustainable pathway for addressing microplastic pollution and creating value through plastic upcycling, wastewater treatment, and carbon dioxide-based bioproduction.

Dai's lab is already growing algae in large tanks and hopes to scale up the technology to treat wastewater and remove other pollutants. The study was published in Nature Communications.

Why It Matters

This research matters because microplastics are a major environmental problem that affects our health and ecosystems. By developing a way to remove these tiny pieces of plastic from our drinking water, we can help keep our environment clean and safe for future generations.

Key Facts

• Researchers at the University of Missouri developed a special type of algae that can remove microplastics from water.
• The algae produces a natural oil called limonene, which changes its surface properties and makes it repel water.
• Microplastics stick to the algae when they meet in water, forming clumps that sink to the bottom.
• The study showed an efficiency of 91.4% in removing microplastics within one hour.
• The researchers demonstrated a strategy to convert the algae into plastic composites with unique properties.

Key Terms

Microplastics

Tiny pieces of plastic that contaminate our environment, including drinking water

Implications

This research matters because microplastics are a major environmental problem that affects our health and ecosystems. By developing a way to remove these tiny pieces of plastic from our drinking water, we can help keep our environment clean and safe for future generations.