Filter Bed - GCSE Chemistry Definition
Reviewed by: Richard Boole
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A filter bed is a part of a water purification system that helps clean water by removing impurities and small particles. It consists of layers of materials like sand, gravel, and sometimes charcoal. As dirty water passes through these layers, the materials trap dirt, bacteria, and other unwanted substances, allowing only cleaner water to get through. This process is important in providing safe drinking water and is a practical example of physical filtration, which is a key concept in chemistry. Filter beds show how simple materials can be used to solve real-world problems by using scientific principles.
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