Polyaluminium chloride is widely used in sewage treatment. Polyaluminium chloride is an organic cationic polymer flocculant. In use, effectively control the use of polyacrylamide and improve the effect of sewage treatment. The action principle of polyaluminium chloride is to condense the floating particles of small particles into large groups for easy settlement.
There is a certain standard for the dosage of polyaluminium chloride, and the effective dosage of polyaluminium chloride products is 20-50mg / L. Liquid products can be directly metered and added. Solid products need to be prepared into 10% - 15% solution in the dissolution tank and then metered and added according to the required concentration. When adding this kind of medicine, the more the better. If you add more, the water quality may be turbid. In actual production, it is necessary to ensure the proper addition of polyaluminium chloride in order to ensure the normal operation of this complex physical and chemical process. Polyaluminium chloride is provided by the coagulant preparation system. Therefore, the working stability of coagulant preparation system and the accuracy of polyaluminium chloride concentration are directly related to the quality and technical indicators of factory water.
During specific dosing, small-scale test shall be conducted according to the water quality. After slightly adjusting the dosage, a more appropriate dosage shall be selected, and then a large number of them shall be actually put into use. Polyaluminium chloride can also be used with polyacrylamide for sludge preparation. Polyaluminium chloride is used in many industries with good results.
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