According to the polyaluminum chloride, different colours are used for water purification treatment with different water quality.

The general content of yellow powder is 28%, which is the national standard content of polyaluminium chloride industrial grade. This content and colour of polyaluminium chloride is mainly used for sewage treatment, and the production process is plate and frame filtration or spray drying process. With the development of industry, there are more and more types of industrial wastewater, and the difficulty of wastewater treatment is increasing.

With the improvement of people's living standards, the government and the public are paying more and more attention to the quality and safety of drinking water, and the treatment of drinking water has very strict requirements for heavy metals. Therefore, our factory in the production of drinking water grade polyaluminium chloride selects the best raw materials and production processes, ensuring that the general public can drink assured water, free from pollution.

Finally, white polyaluminium chloride, which has the highest quality requirement of raw materials and the highest production process among many types of polyaluminium chloride, has higher production costs and more advanced production technology requirements, making it less commonly used in practice.