Magnetized sewage can reduce the amount of polyaluminum chloride Magnetic field can affect the properties of many substances, which is the focus of scientists have been studying and difficulties. That in the water purification industry, magnetization in the end can not produce the effect of it, it will polyaluminium chloride and other water purification agents have any effect on this area, we have done a series of experiments. The result, let us wait and see. 1. Under a given magnetic field, the turbidity of water samples with and without magnetization shows a trend of first decreasing and then increasing with the increase of magnetization time. 2. Magnetization Dissolved PAC aqueous solution of turbidity with the increase of magnetization time and gradually decreased from the coagulation solution of coagulated coagulant solution and coagulation coagulation coagulation effect, the magnetic field to have a certain The positive impact is conducive to the formation of coagulation and sedimentation. 3. To a certain amount of magnetized water and non-magnetized water, polyaluminum chloride, when the amount of investment in polyaluminum chloride smaller when the magnetized water and non-magnetized water turbidity increased with the dose Lower. However, the magnetization water finally found that the water turbidity was lower than the non-magnetized water. After magnetization, water quality can be improved, and to some extent can reduce the dosage of polyaluminum chloride.