Effect of Polyaluminium Ferric Chloride (PAFC) on Wastewater Treatment

Polyaluminium ferric chloride (PAFC) is an inorganic polymer coagulant formed by the coagulation and hydrolysis of aluminium salts and iron salts. It is used in the treatment of drinking water, industrial water, domestic water, domestic sewage and industrial sewage. Polyaluminium ferric chloride has obvious effects on the purification of drinking water and various industrial water. Due to the different properties of raw water, on-site debugging or beaker tests should be carried out according to different situations to obtain the best use conditions and dosage to achieve the best treatment effect.

1. Before use, put Polyaluminium ferric chloride into the alum dissolving pool at a certain concentration (10-30%), inject tap water and stir to fully hydrolyze it, let it stand until it becomes a reddish brown liquid, and then dilute it with water to the required concentration and add coagulation. Water plants can also be prepared to add 2-5% directly, and industrial wastewater treatment can be directly prepared to add 5-10%.

2. The amount ofPolyaluminium ferric chloride added can be determined according to the nature of the raw water through production debugging or beaker experiment to determine the appropriate amount of alum flowers. The water treatment plant can use the amount of other drugs used as a reference. Under the same conditions, the amount of this product is roughly equivalent to that of solid Polyaluminum chloride, which is 1/3-1/4 of the amount of solid aluminum sulfate. If the original product is a liquid product, it can be calculated based on the concentration of the corresponding agent. It is roughly determined by the weight ratio of 1:3.

3. When using, pump the prepared liquid into the metering tank and add the liquid to the raw water for coagulation.

4. Under normal circumstances, it is prepared and used on the same day. Tap water is required for preparation. It is normal to have a little sediment.