Dissolve the solid product into a liquid by adding water at 1:3, and then dilute it with 10-30 times clean water to the required concentration before use. The best PH value of addition is 3.5-5.0, and the best PH value of addition can bring the maximum benefit of coagulation into play. The dosage can be determined according to the different turbidity of raw water, the best dosage, the general raw water turbidity in 100-500m/L, the dosage per thousand tons is 10-20kg. When the turbidity of raw water is high, the dosage can be appropriately increased, and when the turbidity is low, the dosage can be appropriately reduced.

For rural use, the agent can be put into the water tank, stirred evenly, left to stand, the supernatant can be used, and about 1 gram of this agent can be added every 50 kg. If the drug is combined with the polymer flocculant produced by the company, the effect is better. The anionic polyacrylamide or cationic polyacrylamide produced by the company can be dissolved into a composite flocculant with PAC- and then used, or PAC is first added to the treated water body to form a condensate, and then added to the anionic polyacrylamide produced by the company to adsorb and bridge into a large flocculant.

Dosage of polyaluminum chloride in different water quality:

First, in low turbidity water, the solid polyaluminum chloride product is diluted with tap water at a ratio of 1:3 (weight ratio) and stirred until completely dissolved.

Second, in domestic and production sewage, about 30g of polyaluminum chloride products are first added according to each ton of sewage. Then add the diluted polyacrylamide product,(if the effect is not obvious, please reduce or increase the amount of product dosage as appropriate.)

Third, in the sewage treatment of paper mills, the use of low turbidity water placement ratio configuration, such as the effect is not obvious can be added in the appropriate amount.

Fourth, when the raw water turbidity is 100-500mg/L, the dosage is 5-10mg, that is, the dosage per thousand tons of water is 5-10kg, and it is best to conduct a small test according to the water quality characteristics before use, select the best value, and then put into use.