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What is the basicity of PAC

Polyaluminium chloride is a water-purifying flocculant. When it is mentioned whether it is good or bad, it usually depends on the effective substance content of the product. One of the points we often pay attention to is the salinity. What is the salinity, the higher the better?

The degree of hydroxylation or alkalization of a certain shape in PAC is called basicity or alkalinity. It is generally indicated by the molar ratio B=[OH]/[Al] of hydroxyaluminum. The higher the concentration of raw water and the higher the salinity, the better the flocculation. In summary, in the scale of raw water turbidity 86~10000mg/L, the general base degree of PAC is 40%~85%, and many other properties of PAC are related to the base degree.

The price of PAC with high basicity is much higher than that of PAC with low basicity, because when producing PAC, the basicity will be reduced, the raw material will be increased and the production benefit will be reduced. In industries with high turbidity of sewage, the use of polyaluminium chloride products with high salinity is better, while the use of products with low salinity is more significant and the effect is not obvious. In industries with low turbidity of sewage, the use of polyaluminium chloride products with high salinity will make the sewage turbid and can not effectively purify the water quality. At this time, products with low salinity need to be used.

Therefore, it is not the higher the salinity, the better the product effect, depending on the specific use environment!

Thank you for your attentionHenan aierfuke Chemical Co., Ltd：Focus on water treatment, only for the healthy world! Our company is committed toPolyaluminium chloride、Polyferric sulfateThe R & D, manufacturing and sales of series of water purification materials are willing to create success with our customers and friends.