Product Description

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Polyaluminum chloride is a water purification material, an inorganic polymer coagulant, and a polymer with a relatively large molecular weight and a relatively high charge of inorganic polymer produced by the bridge action of hydroxyl ions and the polymerization of polyvalent anions. Pharmacy. In form, it can be divided into two kinds: solid and liquid. The solids are divided into brown, beige, golden yellow and white according to different colors, and the liquid can be represented as colorless, transparent, yellowish, light yellow to yellow-brown.

The polyaluminum chloride having a content of aluminum oxide between 27 and 30 is mostly khaki-yellow yellow solid powder. These types of polyaluminum chlorides have relatively good water solubility, and in the course of dissolution, physicochemical changes such as electrochemical, agglomeration, adsorption, and precipitation eventually lead to [Al2(OH)3(OH)3] precipitation, thereby achieving the purpose of purification. In the use of polyaluminum chloride, without the need for other additives, floe formation is fast and thick, high activity, rapid precipitation, and a clear effect on high turbidity water purification.

In the treatment of potable water, the polyaluminum chloride coagulant used can only be white polyaluminum chloride, but it cannot be yellow common polyaluminum chloride. Why is this?
Yellow polyaluminum chloride is abbreviated as PAC, which is a water-soluble inorganic polymer polymer between ALCL3 and AL(OH)3. White polyaluminum chloride is spray-dried from aluminum hydroxide powder and high purity hydrochloric acid. A white or milky white powdered fine powder, which melts when exposed to air, can only be used as a white polyaluminum chloride in the treatment of potable water. It cannot be a yellow polychlorinated chloride. The reason for aluminum is that it has a great relationship with the effective substance content and performance index of these two products.
The aluminum content of ordinary polyaluminum chloride, which is yellow polyaluminum, is significantly lower than that of white polyaluminum chloride. In potable water treatment, in order to accelerate the reaction rate, a high content of polyaluminum chloride is used, and, The basicity of salt is also an important factor in the reaction of polyaluminum chloride products. The normal yellow polyaluminum chloride has a salty degree of 80% or 90%, while the white polyaluminum chloride has a salty basicity of only about 50%. That is, ordinary polyaluminum chloride has a high content of heavy metals. Excessive heavy metal content will affect the safety of drinking water. In summary, common polyaluminum chloride cannot be used for the treatment of potable water, while white polyaluminum chloride is more suitable. Used in potable water treatment.

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PAC Properties

Polyaluminum chloride properties:

1. The purified water quality is better than aluminum sulfate flocculant, and the water purification cost is 15-30% lower than that.
2. The formation of flocs is quick and the settling speed is fast, which is greater than that of traditional products such as aluminum sulfate.
3.consumption of water below the alkalinity of various inorganic flocculants, which can not vote or less alkali agent.
4. The source water PH5.0-9.0 can be condensed.
5. small corrosion, good operating conditions.
6. the solubility is better than aluminum sulfate.
7. Less salt increase in treated water is beneficial to ion exchange treatment and high purity water production.
8. The adaptability to the source water temperature is better than inorganic flocculants such as aluminum sulfate.

Concentration ratio method:

1. According to the situation of raw water, do a small test before using to obtain the best dose. Small test solution configuration by weight ratio (W / W), generally 2-5% with good. Assembled with 3% solution: said polyaluminum chloride PAC solid 3g, into a 200ml measuring cylinder, add about 50ml of water, to be dissolved and then diluted with water to 100ml scale, shake it.
2. When producing polyaluminum chloride PAC for production, mix and dissolve according to polyaluminum chloride PAC solid:water=1:9 to 1:15 weight ratio. Solutions with a content of alumina less than 1% are prone to hydrolysis and can reduce the effect of use. Concentrations are too high to be easily added evenly.
3. Dosing according to the best dosing amount obtained by small test. For example, if sedimentation tanks are found to be less, if there are large amounts of turbidity, the dosage will be too small. If the sedimentation tank is large and upturned and the remaining turbidity is high, the amount of dosing is too large and adjustments should be made.

PAC Applications

Polyaluminium chloride use method:

fter the solid product is dissolved in water at 1:3, it is used as a liquid, diluted with 10-30 times of fresh water to a desired concentration. The optimal PH value for the dosing is 3.5-5.0, and the best PH value is added to maximize the benefits of coagulation. The dosage can be determined according to the different turbidity of the raw water, and the best dosage is determined. When the raw water turbidity is 100-500mg/L, the dosage per kiloton is 10-20kg. When the turbidity of the raw water is high, the dosage is appropriately increased, and when the turbidity is low, the dosage can be appropriately reduced.

The dosage of polyaluminum chloride in different water quality:

First, in low turbidity water, the solid polyaluminum chloride product is diluted 1:3 (weight ratio) plus tap water and stirred until completely dissolved.
Second, in the life and production use of sewage, with reference to each ton of sewage before adding about 30g of polyaluminum chloride products. Then add the diluted polyacrylamide product (if the effect is not obvious, please reduce or increase the product dosage as appropriate).

Our Company

Shandong Welldone Environmental New Materials Plant

PolyAluminum Chloride Plant of SHANDONG WELLDONE ENVIRONMENTAL NEW MATERIALS CO.,LTD. is a worldwide competitor of Polymer. We have more than 20 years of experience in manufacturing high quality Polymer, products had been exported to North America, Europe, Middle East and South-east Asia. We had been listed as CHINA TOP 10 manufacturer, annual production capacity for 40,000 metric tons.
To offer GREEN CHEMICAL and ENVIRONMENTAL FRIENDLY CHEMICAL is our mission, 23 professional engineers are focusing on environmental production technical improvement, 2 teams focusing on offering staff safety guarantee. We look forward to establishing long term cooperation with company from all over the world.

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FAQ

-1- What kind of PolyAluminum Chloride can your plant produce?
-A- We could produce PolyAluminium Chloride in Powder and Liquid with Color White, Light Yellow, Yellow. Just tell us what you need, we could match you the most suitable items for you.

-2- What is your Minimum Order Quantity?
-A- Usually 1 MT, but for trial order, less quantity can be accepted. The price can be discount for the large order.

-3- Can you provide free samples?
-A- Free samples can be offered for your testing and checking, just contact us to get it.

-4- What about the package?
-A- 25kgs per bag or 1000kgs per ton bag,also we can pack as your request.