How to improve the basicity of polyaluminum chloride

In modern water treatment and environmental protection industry, polyaluminum chloride (PAC) as a highly efficient flocculant, its performance directly affects the improvement of water quality and the efficiency of wastewater treatment. Among them, basicity, as one of the important indicators to measure the effect of PAC, is very important to improve the flocculation effect of PAC. Based on the material text provided, this paper will discuss how to improve the basicity of polyaluminum chloride to achieve more optimized water treatment effect.

 

The importance of basicity of polyaluminum chloride

 

Basicity, that is, the content of aluminum hydroxide in PAC, directly determines the charge density and adsorption capacity of PAC. PAC with high basicity has stronger electric neutralization capacity and adsorption bridging effect, which can effectively remove suspended particles and dissolved impurities in water. Therefore, improving the basicity of PAC is the key to improve its flocculation performance and enhance the effect of water treatment.

 

Production process of polyaluminum chloride

 

The core of producing high basicity PAC is to control the key parameters in the production process. At present, the two-step process using bauxite, aluminum hydroxide and aluminum chloride as raw materials is widely used. In the initial production process, aluminum chloride is formed by the reaction of hydrochloric acid with aluminum containing raw materials, and then by hydrolysis and polymerization to form PAC. Subsequently, the basicity of PAC is adjusted by adding aluminum source materials such as calcium aluminate and accurately controlling PH value.

 

Strategies to improve basicity

 

Optimize the ratio of raw materials: according to the aluminum content and reactivity of raw materials, reasonably adjust the ratio of aluminum source materials to ensure the optimal content of aluminum hydroxide in PAC.

 

Precise PH control: PH is a key factor affecting PAC basicity. When adding aluminum source material, it is necessary to accurately control the PH value of the reaction system to avoid producing too much aluminum hydroxide gel, which affects the filtration effect and the basicity of PAC.

 

Introduction of special regulators: When the PH value of the system is close to the gel point, special regulators, such as B special regulators, can be introduced to replace the addition of part of the aluminum source material, which not only reduces the production cost, but also significantly improves the basicity of PAC.

 

Improve the filtration process: For factories using plate and frame filter press, the filtration process should be optimized to avoid blocking the filter cloth with aluminum hydroxide gel and ensure the purity and basicity of PAC.

 

conclusion

 

Improving the basicity of polyaluminum chloride is the key to improve its water treatment effect. By optimizing the ratio of raw materials, accurately controlling PH value, introducing special regulator and improving filtration process, the basicity of PAC can be effectively increased, and then the flocculation performance and filtration effect can be improved. In the future water treatment and environmental protection industry, high basicity PAC will play a more important role and make greater contributions to improving water quality and protecting the environment.

 

Focus on water treatment, just for a healthy world! Henan Hongze Environmental Protection Technology Co.. is a professional enterprise engaged in the development, production and sales of polymer flocculants. The main products are "green water clean" brand polyaluminum chloride, Aluminum Sulfate，Trichloroisocyanuric Acid

Polymerized Ferrous Sulfate，polyferric sulfate and other water purifiers. With an annual output of 10,000 tons, the products are sold all over the country, and actively explore the international market. The company will continue to uphold the business philosophy of "integrity, innovation and win-win", provide customers with quality products and services, and make due contributions to the society.