How to choose and use polyaluminum chloride for drinking water?

Polyaluminum chloride is a new type of high-efficiency inorganic polymer coagulant. It is a product between AlCl3 and Al(OH)3, with the molecular formula [Al(OH)nCl6-n]m, where m≤10 and n are 3-5. It can sterilise, deodorise, decolourise, fluorine, aluminium, chromium, phenol, degreasing, turbidity, heavy metal salts, and radioactive pollutants, and has a wide range of uses in purifying various waters.

According to the production process, polyaluminum chloride is divided into plate and frame press filtration, drum drying, and spray drying, all of which are light yellow:
1. Polyaluminum chloride produced by drum drying method is often used in sewage treatment, production and domestic water treatment and circulating water reuse system.
2. Compared with ordinary drum type polyaluminum chloride, the water insoluble matter produced by plate and frame filter press type is basically controlled below 1%, and the content of heavy metals and other harmful substances is also very small. It is generally used for the treatment of drinking water.
3. Polyaluminum chloride produced by spray drying method is often used in pharmaceutical additives, food additives, chemical raw materials, cosmetic raw materials, etc.

Drinking water polyaluminum chloride is commonly known as plate-and-frame polyaluminum chloride. The plate-and-frame type polyaluminium chloride is filtered using 60 filter plates. After filtering through various material filter plates, the water content is greatly reduced, and the 10% aqueous solution is a light yellow transparent liquid. It can ensure the smooth flow of the user's pipeline and improve the drug use rate at the same time, which cannot be achieved by the natural sedimentation method. In addition to the lack of insoluble substances in water, the content of heavy metals and other harmful substances is also very small, and the use effect can be comparable to that of spray polyaluminum chloride.

How to use plate-and-frame filtered polyaluminum chloride:
1. The dosage varies depending on the treated water, and the general dosage of water purification is about: 20-25 kg/ton of solids, which can be determined by the beaker test during the small test.
2. The preparation can be directly added to the water, the amount of water added can be determined according to the amount of dosage and the amount of treated water, and the water should be stirred evenly after adding water.
3. When using, a small test should be carried out according to the water quality, and the best point with good water purification effect and small amount should be selected. The solution should be used with the mixture, and the amount of non-potable water should be selected according to the actual situation.
4. When using solids, first add aqueous solution to prepare a 10-25% solution, and then dilute the water to the required concentration, add water to slowly feed the material when dissolving, and stir continuously.

Precautions for packaging and storage:
1. External plastic woven bag, with plastic film set inside, net weight of 25kg per bag, can also be modified according to user requirements.
2. This product is forbidden to be mixed with toxic substances. Transportation and storage: The product should be stored indoors in a dry, ventilated and cool place, and should not be exposed to moisture.

As a manufacturer of polyaluminum chloride, we remind friends in the waterworks to choose polyaluminum chloride for drinking water must choose plate-and-frame polyaluminium chloride, so the water insoluble matter of plate-frame polyaluminum chloride is small, and the content of heavy metals and other harmful substances is also small, which is basically not counted. Although spray-dried polyaluminium chloride has the same effect, its price is on the high side.