Chemical treatment refers to the use of chemicals to alter the properties of a substance or to remove contaminants. This process is commonly used in various industries, including water treatment, where chemicals like chlorine are added to kill bacteria and other harmful organisms. It can also involve the use of acids or bases to adjust pH levels in different materials. In addition to water treatment, chemical treatment is applied in fields such as agriculture, where fertilizers and pesticides are used to enhance crop growth and protect against pests. It is also utilized in the manufacturing of products like plastics and pharmaceuticals, ensuring that materials meet specific quality and safety standards.