Industrial polyaluminium chloride (liquid) is produced according to GB / T 22627-2014. The polyaluminum chloride product is mainly used in industrial water supply, wastewater, sewage and sludge treatment. The main index parameters of the liquid product are as follows:
Mass fraction of alumina and Al2O3 ≥
8.0%
Total iron
1.5 - 5.0%
Basicity
30-95%
Density (20 ℃) ≥
1.10 g / ml
Mass fraction of insoluble matter ≤
0.4
PH value (10g / L aqueous solution)
3.5-5.0
2、 Product function
Industrial polyaluminium chloride is an inorganic polymer coagulant. It is an inorganic polymer water treatment agent with large molecular weight and high charge due to the bridging of hydroxyl ions and the polymerization of multivalent anions. It can eliminate the charge carried on the surface of suspended solids in the water, so as to eliminate the repulsive force between suspended solids. Polyaluminium chloride will combine with these micro suspended solids to form stable colloidal flocs, so as to form precipitation to achieve the purpose of turbidity removal. At the same time, all indicators in the raw water will be significantly improved with the removal of these suspended particles. Such as cod, ammonia nitrogen, total phosphorus, etc.
3、 Advantages of liquid aluminum chloride polymerization products
Polyaluminium chloride products include solid and liquid products. The main advantage of solid products is that they are easy to transport and store. The main advantages of liquid products are that it is convenient to add and use, and there is no need for secondary dissolution. Due to the lack of a drying step in the production process, the cost has obvious advantages over that of solid products
4、 Industry and scope of application
Urban sewage treatment plant can be used in sewage phosphorus removal, advanced treatment, sludge dewatering, inhibition of sludge bulking and other purposes Sewage pretreatment, advanced treatment and sludge dewatering in industrial water supply treatment and industrial sewage treatment It is widely used in cutting water, printing and dyeing wastewater, electroplating wastewater, oil sludge treatment, coal washing wastewater and so on.
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