How to play a role in the efficient polymerization of aluminum chloride In the quality of the aluminum chloride to make it efficient play a role in the efficient coagulant PAC is the current research and development of water treatment hot spots, although there are some shortcomings of PAC, It also has the advantages of less dosage, less sludge, high turbidity, little influence on the pH of the effluent, and is an ideal flocculant in sewage treatment. For water treatment with PAC, in order to achieve the best results and economic benefits, users can according to different raw water turbidity, different seasons and different pool type, through experiment to determine the optimal dosage. Liquid, solid products can be directly added to water 3-5% aqueous solution (calculated according to the content of AL2O3), the general amount of 10-20PPm; for paper sizing with polyaluminum chloride, its usage and aluminum sulfate, the amount of Aluminum sulfate, one of the three, according to the amount of absolute dry paper calculated amount of 2% -3%; for decolorization clarification of sugar industry, the first product dubbed 3-5% aqueous solution (calculated according to the content of AL2O3), and then To be decolorized cane juice, the amount of 5-10PPm. Polyaluminum chloride can effectively remove all kinds of toxic and harmful pollutants in water, the dosage is much lower than the traditional inorganic coagulant, which not only reduces the production cost, improves the whiteness and folding endurance of the paper, but also overcomes the difficulty of the synthetic rubber Avoid the disadvantages (such as skidding, sizing difficult to control, etc.). High purity white aluminum chloride also has a good retention, filter aid, can effectively improve the slurry drainage performance and retention rate.