Over the years, polyaluminium chloride has developed into a flocculant with mature technology and large market sales, which tends to replace the traditional flocculant. Polyaluminium chloride is a commonly used coagulant in water treatment. It has remarkable water treatment effect and plays an important role in the purification of drinking water and industrial sewage. The content of polyaluminium chloride commonly used by us is 26%, 28% and 30%. The content of polyaluminium chloride is different, the use is also different, and the corresponding price of polyaluminium chloride is also different. The polyaluminum chloride produced by Henan aierfalk Chemical Co., Ltd. is more than 29.5% of the national standard value, and each index is better than the national standard. Customers at home and abroad are welcome to compare our products and come to the factory to observe the production process and technology.
Polyaluminium chloride has many advantages, such as good stability in spray drying, wide adaptation to water area, fast water absorption, strong adsorption capacity, large alum forming, high quality and fast sedimentation, low turbidity of effluent and good dewatering performance. Under the same water quality, the amount of spray drying polyaluminum chloride is reduced, especially under the condition of poor water quality. The dosage of spray drying products is reduced by half compared with that of drum drying polyaluminium chloride, which not only reduces the labor intensity of workers, but also reduces the user’s water production cost. In addition, spray drying products can ensure safety, reduce water accidents, and are safe and reliable for drinking water.
Polyaluminium chloride plays an important role in water treatment. In the use of flocs, it has the advantages of fast forming, easy formation of large alum, fast settling speed and good effluent quality. It can effectively adsorb and remove harmful substances such as iron, fluorine, arsenic and bacteria in the water. It also has the functions of turbidity removal, decolorization and deodorization. Is polyaluminium chloride water treatment affected by the pH value of raw water?
Polyaluminium chloride has a wide range of application to the pH value of raw water, but it also has certain limitations. Through experimental detection and theoretical application, the CODcr removal rate increases significantly with the increase of the pH value of raw water. When the pH value of raw water is in the range of 6-8, the flocculation effect is the best. When the pH value is equal to 7, the CODcr removal rate is the highest, reaching more than 85%, because the pH value is small, Polyaluminium chloride is easy to form a combination with H and aluminum sulfate. When the pH value is high, it is easy to form aluminum hydroxide with Oh, which is difficult to separate from pollutants, hindering the smooth suspen of coagulation reaction and greatly reducing the treatment efficiency. PAC adapts to wide pH value, but the water treatment effect is the best when the water quality pH value is neutral.