What is the relationship between the flocculation effect of polyaluminum chloride and the AL2O3 content?

        What is the relationship between the flocculation effect of  Polyaluminum Chloride(PAC) and the AL2O3 content? The aluminum oxide content is a measure of the effective component of polyaluminum chloride. Whether polyaluminum chloride is a hazardous material is no longer a doubt for us. Polyaluminum chloride flocculants have the advantages of agile formation of flocs, large floc particles, good mechanical strength, and advanced settling speed. They are used in high turbidity water, low temperature and low turbidity water, colored water, and polluted water, and can achieve outstanding flocculation effects. Moreover, they have an impact on the pH value, temperature, and turbidity of the raw water Changes in alkalinity, organic matter, etc. have strong adaptability.

The aluminum oxide content in Polymeric Aluminium Chloride(PAC) is a measure of the effective component of the product, which is related to the relative density of the solution. Generally speaking, the higher the relative density, the higher the aluminum oxide content. The viscosity of polyaluminum chloride is related to the alumina content, and the viscosity increases with the increase of alumina content. Under the same conditions and the same concentration of alumina, the viscosity of polyaluminum chloride is lower than that of aluminum sulfate, which is more conducive to transportation and use.

The degree of hydroxylation or alkalization of a certain shape in Polymeric Aluminium Chloride(PAC) is called basicity or alkalinity, and is generally determined by the molar ratio of hydroxyaluminum B=(OHJ/[AI] The percentage indicates that alkalinity is one of the most important targets of polyaluminum chloride, which is closely related to flocculation. The higher the concentration and salinity of the raw water, the better the flocculation effect. In summary, within the range of turbidity of raw water from 86-10000mg/L, the optimal alkalinity of polyaluminum chloride is between 40% -85%, and many other characteristics of polyaluminum chloride are related to alkalinity.