Polyaluminium chloride, also known as PAC, is a commonly used water treatment agent. It has excellent flocculation and purification properties, and is widely used in drinking water treatment, industrial water treatment, wastewater treatment and other fields. However, there are certain differences in the use, quality, and quality of different grades of polyaluminum chloride. This article will detail the difference between drinking water grade polyaluminium chloride and industrial grade polyaluminium chloride.
First, the use is different.
Drinking water grade polyaluminum chloride is mainly used for drinking water treatment, with the purpose of removing impurities, heavy metals, bacteria and other harmful substances in the water to ensure the safety and hygiene of drinking water. The industrial-grade polyaluminum chloride is mainly used for industrial water treatment and wastewater treatment, with the purpose of removing suspended solids, organic matter, color, etc. in the water to meet the requirements of water quality indicators.
Second, the quality standards are different.
Due to different uses, there are differences in the quality standards of drinking water grade polyaluminium chloride and industrial grade polyaluminium chloride. Drinking water grade polyaluminum chloride must meet the requirements of the national drinking water hygiene standard (GB 5749-2006), and strictly control the indicators to ensure the safety and hygiene of drinking water. Industrial-grade polyaluminium chloride may have different quality standards and specifications depending on the application and needs.
Three, ** different.
Due to the high quality requirements of drinking water grade polyaluminum chloride, the production process requires more stringent quality control and raw material screening, so the ** is relatively high. Industrial-grade polyaluminium chloride is relatively economical and can meet the needs of industrial production.
Fourth, the production process is different.
There are also certain differences in the production process between drinking water grade polyaluminum chloride and industrial grade polyaluminum chloride. Drinking water grade polyaluminum chloride usually uses advanced alumina or aluminum hydroxide as raw materials, and undergoes high-temperature melting, spray drying and other processes to produce high-purity products. Industrial-grade polyaluminium chloride can be produced from different raw materials and processes according to specific needs and applications.
Fifth, the form of the product is different.
Drinking water grade polyaluminum chloride usually exists in the form of powder or granules, which has good solubility and stability, and can quickly form alum flowers to improve purification efficiency. Industrial-grade polyaluminium chloride may exist in different product forms, such as liquids, solids, etc., to meet the needs of different industrial production.
To sum up, there are obvious differences between drinking water grade polyaluminum chloride and industrial grade polyaluminum chloride in terms of use, quality standards, production process and product form. When choosing to use, it should be selected according to the specific needs and uses to ensure the best water treatment results.
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