Chemical filtration is a process used to remove impurities and contaminants from liquids or gases by using specific materials that interact with the unwanted substances. This method often employs substances like activated carbon or zeolites, which have a high surface area and can adsorb various chemicals, effectively cleaning the medium being filtered. In water treatment, for example, chemical filtration helps eliminate harmful compounds such as chlorine, heavy metals, and organic pollutants. This process is essential for ensuring safe drinking water and is commonly used in both industrial applications and home water purification systems, contributing to overall public health and environmental safety.