The alkalinity of PAC has a great influence on the flocculation effect of PAC. As a professional manufacturer of polyaluminum chloride, the flocculation effect of polyaluminum chloride is very similar to alkalinity through the comparative study of some specific examples and the experiment on the flocculation effect of polyaluminum chloride.

Through the experiment of coagulation treatment of coking wastewater, the best alkalinity, dosage and pH range of polyaluminum chloride for coking wastewater treatment were obtained. According to the different aluminum content of polyaluminum chloride water treated under different alkalinity, the best utilization rate was obtained.

After wastewater treatment, the aluminum content is closely related to the alkalinity of polyaluminum chloride. Under the same alkalinity, the pH value has a great influence on the residual aluminum content. According to the experimental data of polyaluminum chloride, when the pH value is close to neutral, the residual aluminum content in water is the smallest, and the pH value will increase the residual aluminum content. When the alkalinity of PAC is 1.5, the content of aluminum in the treated wastewater is very low.

Alkalinity is also an important index that must be controlled in the production of polyaluminum chloride. Because it has a great influence on the flocculation effect of polyaluminum chloride, it is one of the standards to be strictly implemented.

In addition, the flocculation effect of PAC is not only closely related to alkalinity, but also greatly affected by PAC content and insoluble matter. In the process of using polyaluminum chloride, the reasonable use method is also one of the preconditions to ensure the flocculation effect of polyaluminum chloride.