what is purification of water

Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water in order to produce water that is fit for specific purposes. This process is essential for providing clean drinking water and meeting the needs of medical, pharmacological, chemical, and industrial applications. Water purification methods include physical processes such as filtration, sedimentation, and distillation; biological processes such as slow sand filters or biologically active carbon; chemical processes such as flocculation and chlorination; and the use of electromagnetic radiation such as ultraviolet light. The purification procedure reduces the concentration of contaminants such as suspended particles, parasites, bacteria, algae, viruses, and fungi. Some common methods of water purification include boiling, water filtration, chemical disinfection, ultraviolet light, and salt electrolysis. Overall, water purification is crucial for ensuring access to safe and reliable drinking water and for various industrial applications.