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Drum type 30% content drinking water grade polyaluminium chloride
PAC at home and abroad is the rapid development of fine chemical products, is a highly effective flocculant in water treatment, it is important for the development of water treatment and refinement tool. At present, there are two directions in product development, consciously developing new materials to prepare polyaluminum chloride products, and using aluminum shavings, aluminum ash, aluminum slag and other raw materials to prepare polyaluminum chloride products. The process is relatively simple and the early development is relatively fast, but this year Since the price of aluminum-bearing materials such as aluminum shavings and aluminum ash has risen, and the use of them to produce other higher-value aluminum-containing products, the production of polyaluminum chloride using this raw material has been decreasing. The production cost of aluminum hydroxide and alumina as raw materials is too high, so at present, domestic aluminum-containing minerals are generally used as raw materials to prepare polyaluminum chloride. In recent years, the research on the use of industrially produced wastes as raw materials should attract enough attention. As a raw material to produce polyaluminum chloride, it not only saves material costs, but also enables waste recycling. It is a very promising research field. The other aspect is that polyaluminum chloride is compounded or complexed with inorganic or organic polymer flocculants. With the application research, compound or compound agents can make up for the shortcomings of a single flocculant, and have the advantages of each single flocculant, a wide range of adaptation, can also improve the removal rate of organic matter, reduce the concentration of residual metal ions, can significantly improve flocculation In addition, the current domestic PAC production process is mostly intermittent production, serious pollution, low raw material utilization rate, unstable product quality, and the development of efficient and continuous production processes will surely become a hot spot in industrial production research in the future. The improvement of water quality by polyaluminum chloride water purification materials is a consensus. It has been proven by a large number of application practices that the use of polyaluminum chloride instead of traditional iron and aluminum salt coagulants can significantly improve the purification efficiency of water plants, reduce treatment costs, Improve the effluent quality. (Polyaluminum chloride not only has a strong effect of coagulation and turbidity removal, but also has obvious effects of decolorization and humus removal.