In a groundbreaking effort to tackle the global microplastic crisis, researchers from the Korean Institute of Science and Technology have developed a small floating robot designed to remove microplastics from the ocean's surface. Measuring approximately 0.8 square meters, this prototype utilizes a ratchet drum that harnesses the surface tension of water to efficiently capture microplastic particles, as detailed in the journal Advanced Science.
The project, initially aimed at oil recovery, shifted focus after a major plastic pellet spill from a container ship off Sri Lanka in May 2021 prompted the team to adapt their technology. The robot's mechanism now employs capillary force to draw in microplastics, functioning like a specialized vacuum.
Experts, including Frédéric Moisy from Paris-Saclay University, have praised the innovative approach, noting its fundamental methodology in addressing pollution. The robot could be particularly effective in concentrated environments such as ports or during pollution incidents. Moving forward, the researchers aim to refine the prototype into a commercially viable, autonomous solution.