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How do magnets remove microplastics from water?

Published in Microplastic Removal 2 mins read

Magnets can remove microplastics from water by first making the microplastics themselves magnetic, allowing them to be easily separated.

The Magnetic Method for Microplastic Separation

This innovative approach utilizes a special magnetic mixture, often referred to as a ferrofluid. This mixture has two key properties: it is inherently magnetic, and it is designed to effectively stick to microplastic particles present in the water.

Here's how the process works:

  1. Introducing the Mixture: The magnetic mixture is added directly into the water contaminated with microplastics.
  2. Binding: Once in the water, the mixture binds onto the surface of the microplastic particles.
  3. Making them Magnetic: This binding process essentially coats the microplastics with the magnetic material, thereby making them magnetic.
  4. Magnetic Collection: With the microplastics now magnetized, external magnets can be used to attract and pull the microplastic-mixture clumps out of the water, effectively cleaning it.

This method leverages the power of magnetism to address the challenge of separating tiny plastic particles from water, transforming the non-magnetic microplastics into magnetically responsive material that can be easily collected.

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