What is the role of polyaluminum chloride in sewage treatment?

At the same time, polyaluminum chloride can also play a role in assisting coagulation, helping polyacrylamide to accelerate the sedimentation, making the water clear and sludge sinking. This is why need to add PAC first and then PAM in sewage treatment process.

What is polyaluminum chloride?

[English name] Polyaluminium Chloride, abbreviated PAC. [Technical standard] Product quality in line with national GB15892-2003 standard. Compared with other coagulants, polyaluminum chloride has the following advantages: wide application range, wide adaptability to water. Easy to quickly form large alum flower, good precipitation performance.

What are the uses of polyaluminum chloride and polyacrylamide?

In the sewage treatment of papermaking, steel, metallurgy, mineral processing, chemical, electroplating, slaughter, urban sewage and other industries, it is often necessary to add polyaluminum chloride and polyacrylamide to accelerate the sedimentation rate of pollutants in the water in the process of flocculation and precipitation.

Why is polyaluminum chloride acidic?

Why? We need to know the functions of PAC and PAM first. The aqueous solution of polyaluminum chloride is acidic, with a pH between 3.5-5.0, which can adjust the pH of the water quality. The applicable water pH range of polyaluminum chloride is between 3-12, which is wider than that of polyacrylamide.

What is the application of Pam in water treatment industry?

1 water treatment field :PAM in the water treatment industry application mainly includes raw water treatment, sewage treatment and industrial water treatment three aspects. In raw water treatment,PAM and activated carbon used together, can be used for coagulation and clarification of suspended particles in living water; In sewage treatment.

How to use polyaluminum chloride?

Usage :1. Dissolve solid polyaluminum chloride into liquid by adding 1:3 water, and then dilute it with 10-30 times water to the required concentration before use. 2, dosage can be determined according to the different turbidity of raw water, the best dosage, generally raw water turbidity in 100-500mg/L, each thousand tons of dosage is 10-20kg.