The separation of fine and colloidal particles takes a long time, so chemical coagulants are used to enlarge the particles and reduce the settling time. When the coagulant is added to water, some of it is used to adjust the electrical potential of the particles, and some of it is combined with the alkalinity of the water.

The steel industry uses large amounts of water. However, very little is consumed, as most of the water is reused or returned to the source. Water is used not only in cooling operations, but also in other processes such as scale removal and dust cleaning.

Abrizan Industrial Research Knowledge Company, located in Fars Science and Technology Park, has been operating for more than twenty years, producing more than 180 specialized and mostly exclusive products in the field of chemical treatment of industrial waters and wastewater under the Mitreh brand. The company's solutions have different types with different applications.

Coagulants are key components for the wastewater treatment process that stick to the suspended solids and settle them so that they can be easily removed and the treatment process is carried out. It is very important to choose the type and amount of coagulant to prevent non-compliance and overdraft as well as to reduce the cost of consumption. The appropriate and practical choice of a coagulant can be critical for the success of a process. Coagulants are used to remove the disorganization of colloidal suspensions and neutralize suspended solids.