Polyaluminum chloride is a widely used water purification agent product at present. It has good flocculation effect in sewage treatment line, and can achieve the functions of turbidity removal, phosphorus removal, oil removal, reflective substances removal, etc. Moreover, polyaluminum chloride has the advantages of fast dissolution, fast flocculation speed, high sedimentation efficiency, small corrosiveness, simple use, convenient operation, etc., which attract many users' choice.

At present, there are two kinds of polyaluminum chloride in the market: solid and liquid. The effect of solid and liquid polyaluminum chloride is similar, and they are mainly used as coagulant. However, liquid polyaluminium chloride and solid polyaluminium chloride also have their own unique advantages and disadvantages.

Solid polyaluminium chloride is the product of liquid polyaluminium chloride after drying process. According to the difference of drying process, there are great differences in solid polyaluminium chloride. Currently, drum dried polyaluminium chloride is mainly used for industrial waste water treatment, while spray drying process polyaluminum chloride can be divided into two kinds,  low quality for sewage treatment andh high quality is mostly used for drinking water treatment. Solid polyaluminum chloride is easy to pack and transport, but it needs to be dissolved and diluted in order to achieve better effect.

Liquid polyaluminum chloride is directly produced, because it can not be better treated, it is generally used in sewage treatment. However, compared with solid polyaluminum chloride, liquid polyaluminum chloride has less drying process and lower price. However, the storage and transportation of liquid polyaluminum chloride is not very convenient, and the price will be slightly higher.

Therefore, solid polyaluminum chloride and liquid polyaluminum chloride need to be purchased according to their own actual situation.