Water purification involves the process of removing contaminants and undesirable substances from water to make it suitable for specific purposes such as drinking, industrial use, or medical applications.There are several methods used for water purification. Filtration is a common technique where water is passed through physical barriers like sand, charcoal, or membranes to remove particles and larger impurities. Distillation involves boiling water and condensing the steam to separate impurities, often used to eliminate salts and minerals. Chemical treatments use substances like chlorine, ozone, or iodine to kill bacteria and microorganisms, while ultraviolet (UV) treatment exposes water to UV light to disrupt microorganism DNA.