Polyaluminum chloride form
As a precipitant for pool water, polyaluminum chloride is superior to traditional aluminum sulfate in terms of purification effect, corrosion, water solubility, pH adaptability and influence. According to the changes in its type, there are different characteristics, and the application range is also different:
According to the morphology of polyaluminum chloride can be divided into two types: liquid aluminum chloride, is its undried form, no dilution, convenient loading and unloading, the advantages of relatively cheap prices, the disadvantage is the need for tankers transport, unit transport costs increase (Equivalent to 2-3 tons of liquid per ton of solids); solid aluminum chloride, its shape after drying, has the advantage of convenient transportation, does not require tankers, the disadvantage is that it needs to be diluted, increase work intensity.
According to the process classification of polyaluminum chloride, it can be divided into three types: roller type polyaluminum chloride, its aluminum content is generally, water insoluble matter is also very high, generally only used for sewage treatment; plate and frame type polyaluminum chloride, Its high aluminum content and low water insolubles are suitable for sewage treatment and drinking treatment. Spray drying of polyaluminum chloride also has high aluminum content, low water insolubles and fast dissolution, and is used in drinking water and higher standards. Water treatment is a widely used type.
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