Contemporarily, the demand for safe and freshwater is consistently rising, 
owing to satisfy human needs and supporting industrial activities. With the increasing urbanization and economic development, the current water supply is unlikely to satisfy the ever-growing demands. Hence, the chemical industry uses innovative ways of water treatment in order to make water acceptable for end-use, such as drinking, cooking, irrigation, and industrial purpose to name a few.
The water treatment methods use four basic processes that include boiler water treatment, cooling water treatment, water purification, and treatment of wastewater effluent. The substances that are removed during the water treatment process are suspended solids, viruses, fungi, bacteria, algae, and minerals. The process involves both physical and chemical methods. The chemical used in this process is called water treatment chemicals.
