Answer:

In the water treatment purification process, Polyaluminum chloride can accelerate the coagulation process, causing impurities in the water to form flocs and settle down, thus achieving a quick separation of water and impurities.

Compared with traditional inorganic coagulants composed of low molecular crystalline salts, poly aluminum chloride is a polymeric inorganic high molecular polymer with variable morphology, which has fast flocculation and sedimentation rates, significant water purification effects, and the ability to effectively treat heavy metal substances such as arsenic and mercury in water. Additionally, its pH range is wide, and it has no corrosive effects on equipment and pipes, making it widely used in the fields of drinking water, industrial water, and wastewater treatment.

Polyaluminum chloride also has the effect of removing phosphorus, which can form precipitation with phosphate in wastewater and is suitable for phosphorus removal in sewage treatment plants. Polyaluminum chloride is usually used as a coagulant, and due to differences in effect, there are significant differences in solution concentration and dosage. Solid polyaluminum chloride has a content of 26%, 28%, and 30%. Before use, the solid should be dissolved into a 10% concentration. The dosage can be determined by product testing on the basis of the turbidity of the original water.

Polyaluminium chloride is often used as a coagulant in industrial wastewater treatment, with good adsorption capacity and the ability to form dense and larger floccules quickly and effectively. It can effectively remove heavy metal ions, radioactive substances, odors, bacteria, aluminum and other impurities from wastewater. It can achieve good water purification effects for all kinds of wastewater, making the water clean and safe.