1、 Introduction:
Polyaluminum chloride is a water purification material and inorganic polymer coagulant, also known as polyaluminum or PAC. It is a high molecular weight and high charge inorganic polymer water treatment agent produced due to the bridging effect of hydroxide ions and the polymerization effect of multivalent anions. In terms of form, it can be divided into two types: solid and liquid. Solids can be classified into brown, beige, golden yellow, and white according to color, while liquids can appear colorless, transparent, slightly yellow, light yellow to yellow brown. There are significant differences in the application and production technology of polyaluminum chloride with different colors.
2、 Ingredients:
Mainly aluminum oxide, also known as alumina, with the molecular formula: [Al2 (OH) nCl6-n · xH2O] m (m ≤ 10, n=1-5) is a highly charged polymerized cyclic chain with Keggin structure, which has a high degree of electrical neutralization and bridging effect on colloids and particles in water, and can strongly remove trace toxins and heavy metal ions, with stable properties. Inspection method: Inspect according to the international GB15892-2003 standard. Also known as basic aluminum chloride, polyaluminum chloride is abbreviated as PAC, also known as polyaluminum chloride, composite polyaluminum chloride, or basic aluminum chloride.
3、 Technical indicators of polyaluminum chloride:

4、 Characteristics:
1. The floc forms quickly, has good activity, and good filtration performance.
2. No need to add alkaline additives, its effect remains unchanged in case of deliquescence.
3. Wide adaptability to pH value, strong adaptability, and wide range of applications.
4. The treated water has low salt content.
5. Can remove heavy metals and radioactive substances from water pollution.
6. High effective ingredients, easy to store and transport.
5、 Application areas:
1. Water purification treatment: domestic water, industrial water;
2. Urban sewage treatment;
3. The treatment of industrial wastewater, sewage, sludge, and the recovery of certain residues in sewage;
4. For some industrial wastewater that is difficult to treat, using PAC as the matrix, adding other agents, and blending it into composite PAC can achieve surprising results in wastewater treatment.