Coagulants for water treatment:

Water treatment coagulant is a chemical used in the water treatment process, which is used together with flocculants to enhance the effect of water treatment. Coagulant aid is mainly used to speed up the coagulation rate of the flocculant and increase the size of the flocculant, so as to improve the clarification of the water and the ability to remove impurities such as suspended matter, turbidity and particulate matter.

Unlike flocculants, coagulants are usually inorganic salts or organic compounds that are added to water with flocculants and further promote the formation and growth of flocculants by interacting with the flocculants.

Common coagulants for water treatment include polymer coagulants, mineral coagulants and electrolyte coagulants. Polymer coagulant aid is a polymer compound, which can form a composite flocculant with flocculant to improve the stability and cohesion of the flocculant. Mineral coagulants are some inorganic substances, such as silicates, iron oxides, etc., which can provide additional flocculating surfaces and promote the growth of flocculants. Electrolyte coagulants are some ionizing salts that can neutralize the charge in water and promote the flocculation to form larger particles.

The selection and use of coagulants for water treatment should also be adjusted according to water quality characteristics and treatment requirements. Reasonable selection and operation of coagulant aid can improve the flocculation effect, accelerate the sedimentation rate, reduce the condensation time, and thus improve the speed and effect of water treatment.