Polyaluminum chloride has a very good effect in the treatment of industrial wastewater, especially in the treatment of some acid-base wastewater. At present, acid-base wastewater mainly comes from chemical wastewater, dye wastewater, electroplating wastewater, printing and dyeing wastewater, oil refining wastewater, etc. These acid-base wastewater have strong corrosiveness and are not easy to treat, but the use of polyaluminum chloride can achieve good treatment effect.

The acid-base wastewater treated by polyaluminum chloride is generally divided into acidic wastewater and alkaline wastewater. There is a big gap between different wastewater treatment methods using polyaluminum chloride. In order to have a good treatment effect, it is necessary to formulate a reasonable use method according to the type of wastewater.

Polyaluminum chloride has great advantages in treating alkaline wastewater, and it is generally easier to treat. This is because polyaluminum chloride itself can play a better effect in alkaline conditions, so that the pollutants in the wastewater can be flocculated and precipitated, and there is no need to add additional additives. However, when polyaluminum chloride is used to treat acid wastewater, it is necessary to add alkaline additives to the acid wastewater first, and adjust the wastewater to neutral or weak alkaline. When polyaluminum chloride is used, the treatment effect will be very good.

Because polyaluminum chloride is slightly corrosive and acid-base wastewater is also highly corrosive, when polyaluminum chloride is used to treat acid-base wastewater, the corresponding treatment equipment needs to undergo certain anti-corrosion measures.