Polyaluminum chloride
Polyaluminum Chloride (PAC) is a salt commonly used in water purification and as a coagulant. Compared to other aluminum salts, it’s best suited for removing and destabilizing suspended materials- thanks to its high charge.
It is used in water purification, ensuring water is safe for drinking. Like all other coagulants, it works by extracting all the dissolved matter in water by clumping them together and then suspending them. The resultant matter is then filtered and disposed of.
PAC is a flocculant of new concept, the specific properties of which derive from the action of its basic active constituent, namely Poly Aluminium Chloride.
This is a polynuclear complex of polymerised hydro-aluminium ions, with the following general formula: { Al2 (OH)n Cl 6-n }x
PAC is supplied in form of water solution or as powder, which facilitates the transport and storage operations and subsequent dosage of the reagent.
Polyaluminum Chloride is well-suited as a primary coagulant in a wide variety of industrial and domestic wastewater treatment plans. Efficient and effective in coagulating particles at a wide range of pH, the chemical leaves no residual color and offers very good turbidity removal.
PAC applications
Water treatment - The polyaluminum chloride (PAC) is used for settling of solid particles present into drinkable waters and for the flocculation of civil and industrial effluents. It has also a high antibactericide effect, due to the presence of chlorine into the product formula, and can be utilized for large range of pH and with higher turbidity.
Paper manufacture - The main features of PAC are its high Al2O3 content and polymeric nature, which give rise to products of hydrolysis characterized by a high molecular weight and a large number of positive electric charges able to interact with the cellulose fibers and size, optimizing the sizing phase and the retention of fibers.
Packaging and Handling:
Polyaluminum Chloride should be handled in accordance with the Material Safety Data Sheet and applicable federal, state, and local laws and regulations.
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