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According to "Pac for drinking water" (GB15892-2020), the key indicators include:

Alumina (Al₂O₃) content: liquid> or equal to 10%, solid> or equal to 29%, to ensure flocculation efficiency.

Through the triple action of electro-neutralization, adsorption bridge and precipitation net, PAC can quickly remove suspended solids, colloids, heavy metals (iron/cadmium/aluminum, etc.), radioactive substances and floating oil in water.

Drinking Water Treatment: make the turbidity of the effluent less than 0.5 NTU, to meet the national health standards.

The normalization of environmental restrictions has led to the exit of small and medium-sized production capacities. For example, in the PAC production area of Gongyi, Henan, the price of Q1 increased by 10% in the short term due to environmental restrictions in 2025. In the long run, environmental inspections have eliminated low-end production capacities (such as low-purity products produced using the drum method), leading to increased industry concentration and stronger bargaining power for leading companies.

Drinking water-grade liquid polyaluminum chloride is a high-purity inorganic polymer coagulant specifically designed for drinking water purification. Its chemical formula is [Al₂(OH)ₙCl₆−n]m[Al₂​(OH)ₙ​Cl₆−n​]m​. The product strictly complies with China's "Hygienic Standard for Drinking Water" regarding heavy metal residue levels (arsenic ≤0.0005%, lead ≤0.001%) and salt base content (40%-60%). Compared to industrial-grade products, it demonstrates distinct advantages:

The following is a comprehensive analysis of the price trend of China's industrial grade polyaluminum chloride (PAC) solid in the first half of 2025, based on the latest market data:

According to the national standards, product forms and application scenarios, there are clear classification of polyferric sulfate, as follows:

The normalization of environmental restrictions has led to the exit of small and medium-sized production capacities. For example, in the PAC production area of Gongyi, Henan, the price of Q1 increased by 10% in the short term due to environmental restrictions in 2025. In the long run, environmental inspections have eliminated low-end production capacities (such as low-purity products produced using the drum method), leading to increased industry concentration and stronger bargaining power for leading companies.