Moringa Plant Extract Shows Promise for Removing Microplastics from Water
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Brazilian researchers have found that an extract from the moringa plant is as effective as a conventional chemical at removing microplastics from water in laboratory tests. The method uses the plant's natural coagulant properties to cluster microplastic particles for easier filtration. The team is now testing the approach with water from a local river to confirm its effectiveness under real-world conditions.
Facts First
- Moringa oleifera extract can remove microplastics as effectively as aluminum sulfate in lab tests.
- The method uses coagulation and filtration, a standard water treatment process.
- Researchers tested the method on aged PVC microplastics, a common and hazardous pollutant.
- The project is funded by the Foundation for Research Support of the State of São Paulo (FAPESP) and led by Professor Adriano Gonçalves dos Reis.
- Testing is now underway with water from the Paraíba do Sul River to assess real-world application.
What Happened
Researchers at the Institute of Science and Technology of São Paulo State University (ICT-UNESP) found that an extract from the moringa plant could help remove microplastics from water. In laboratory tests, they added aged polyvinyl chloride (PVC) microplastics to tap water and treated it using a coagulation and filtration process. Both the moringa salt extract and the conventional coagulant aluminum sulfate showed similar levels of microplastic removal.
Why this Matters to You
If this method proves scalable, it could lead to more sustainable and accessible ways to clean microplastics from drinking water sources. You might eventually benefit from water treatment that uses a natural, plant-based material instead of, or alongside, conventional chemicals. This could be particularly valuable in tropical regions where the moringa plant grows.
What's Next
The research team is currently testing the moringa seed extract on water collected from the Paraíba do Sul River, which supplies the city of São José dos Campos. Initial results suggest the method is effective in these more complex, natural water conditions. Further research will determine if this laboratory success can be translated into a practical, large-scale water treatment solution.