Polyaluminium chloride (PAC) is a coagulant widely used in the field of water treatment, especially in the sand washing industry, polyaluminium chloride plays an indispensable role. Polyaluminum chloride has excellent coagulation properties, which can effectively remove impurities in water and improve water quality. However, different sand washing occasions and working conditions require different types and specifications of polyaluminium chloride, so how to correctly select polyaluminium chloride has become an important issue.
First of all, we need to understand the models and specifications of polyaluminum chloride. Polyaluminium chloride is available in a variety of models, including spray, flake, powder, etc. Different models of polyaluminium chloride have different particle sizes and appearance shapes, so the scope of application is also different. When selecting the model, it is necessary to select the appropriate model according to the actual needs. For example, for sand washing, powdered polyaluminum chloride is more suitable because it has good dispersion and solubility, can quickly form alum flowers, and improve treatment efficiency.
Secondly, the salt base of polyaluminium chloride needs to be considered. The salt base is an important indicator of polyaluminium chloride, which determines the chemical properties and coagulation effect of polyaluminium chloride. In general, the higher the salt base, the better the coagulation performance of polyaluminium chloride. However, in practical application, the higher the salt base, the better, and it needs to be selected according to the actual situation. If the salt base is too low, it will affect the coagulation effect of polyaluminum chloride; If the salt base is too high, it can have a negative impact on water quality.
In addition, the dosage of polyaluminium chloride needs to be considered. Dosage is an important parameter in the use of polyaluminium chloride. In the sand washing process, the dosage needs to be adjusted according to the actual situation to achieve the best treatment effect. If the dosage is insufficient, it may lead to incomplete water purification; If you dosing too much, it can lead to waste and increased processing costs.
In addition, attention needs to be paid to the storage and transportation of polyaluminium chloride. Polyaluminum chloride needs to pay special attention to moisture, sunscreen, fire prevention and other measures during storage and transportation. At the same time, it is also necessary to avoid mixing with toxic and harmful substances to avoid harm to human health and the environment.
To sum up, the correct selection of polyaluminum chloride is very important for the sand washing industry. When choosing polyaluminum chloride, it is necessary to select the appropriate model, specification and salt base according to the actual situation, and pay attention to the precautions in terms of dosage, storage and transportation. Only in this way can we give full play to the advantages of polyaluminum chloride and improve the water quality and treatment efficiency of sand washing. At the same time, it is also necessary to pay attention to safety and environmental protection issues to ensure safety and sustainable development in the production process.