Wholesale Polyaluminium Chloride Polymerized Alumina Water Water Purifying Agent
China Wholesale Polyaluminium Chloride Polymerized Alumina Water Water Purifying Agent, Find details about China Polymerized Alumina, Polyaluminium Chloride from Wholesale Polyaluminium Chloride Polymerized Alumina Water Water Purifying Agent
Basic Info.
Model NO.
32%
Grade Standard
Industrial Grade
Trademark
Shengri
Transport Package
25 Kg Bags
Specification
32%
Origin
Zibo City, Shandong Province, P. R. China
HS Code
2827320000
Model NO.
32%
Grade Standard
Industrial Grade
Trademark
Shengri
Transport Package
25 Kg Bags
Specification
32%
Origin
Zibo City, Shandong Province, P. R. China
HS Code
2827320000
Product Desciption
Essential information
Name: polyaluminium chloride (polyaluminium chloride for short)
Poly aluminum chloride code PAC. It is also commonly called water purifying agent or coagulant. It is a water-soluble inorganic polymer between AlCl3 and Al (OH) 3. The general chemical formula is [Al2 (OH) nCl6-n] m, where M represents the degree of polymerization and N represents the neutrality of PAC products.
The color is yellow or light yellow, dark brown and dark gray resin solid. The product has strong bridging adsorption performance. In the hydrolysis process, physical and chemical processes such as condensation, adsorption and precipitation occur. The fundamental difference between poly aluminium chloride and traditional inorganic coagulant is that the traditional inorganic coagulant is a low molecular crystalline salt, while the structure of poly aluminium chloride is composed of polybasic carboxyl complex with changeable morphology, with fast flocculation and sedimentation speed, wide applicable pH value range, no corrosion to pipeline equipment, obvious water purification effect, and can effectively support the color SS, COD, BOD, arsenic, mercury and other heavy metal ions in the water, The product is widely used in the fields of drinking water, industrial water and sewage treatment.
Physicochemical properties
Polyaluminium chloride has the properties of adsorption, condensation and precipitation. Its stability is poor and corrosive. If it is accidentally splashed on the skin, it should be washed with water immediately. Production personnel shall wear work clothes, masks, gloves and long rubber boots. Polyaluminium chloride has the advantages of good stability in spray drying, wide adaptation to the water area, fast hydrolysis speed, strong adsorption capacity, large alum forming, high quality and fast sedimentation, low turbidity and good dewatering performance. Spray drying products can ensure safety and reduce water accidents. It is very safe and reliable for drinking water. Therefore, poly aluminum chloride is also referred to as highly effective polyaluminum chloride, highly efficient PAC or highly efficient spray drying polyaluminium chloride. Polyaluminium chloride is suitable for raw water with various turbidity and a wide range of pH. however, compared with polyacrylamide, its sedimentation effect is far inferior to polyacrylamide.
The basicity of polyaluminium chloride is a relatively important index in Polyaluminium chloride, especially for polyaluminium products of drinking water level. The lower the base degree, the higher the price. Each purchaser can operate according to the actual situation of the manufacturer. In addition, the basicity of polyaluminium chloride products produced and treated with different raw materials and processes is also different, which needs to be adjusted by the manufacturer. Increasing the basicity of polyaluminium chloride products can greatly improve the economic benefits of production and use. The basicity is increased from 65% to 92%, the cost of raw materials can be reduced by 20%, and the use cost can be reduced by 40%.
Concentration ratio method
When solid polyaluminium chloride is diluted into liquid, a small test shall be conducted according to the raw water conditions to obtain the best dosage before use. When polyaluminium chloride is used in production, it can be mixed and dissolved according to the mass ratio of polyaluminium chloride solid: clean water = 1:9-1:15. The solution with alumina content less than 1% is easy to be hydrolyzed, which will reduce the use effect. It is not easy to add evenly if the concentration is too high. After the reagent is put into use, if the alum in the sedimentation tank is small and the residual turbidity is large, the dosage is too small; If the alum in the sedimentation tank is large and turned up, the dosage is too large and should be adjusted appropriately.
Color type
The colors of polyaluminium chloride generally include white, yellow and tan. Polyaluminium chloride of different colors also has great differences in application and production technology. Polyaluminium chloride with alumina content between 27% and 30% in the national standard range is mostly earthy yellow, yellow and light yellow solid powder. These types of polyaluminium chloride have good water solubility. In the process of dissolution, accompanied by physicochemical changes such as electrochemistry, coagulation, adsorption and precipitation, the flocs form quickly and coarsely, have high activity, precipitate quickly, and have obvious purification effect on high turbidity water.
White poly aluminum chloride is known as high purity iron free white polyaluminum chloride or food grade white polyaluminium chloride. Compared with other polyaluminum chloride, it is the highest quality product. The main raw materials are high quality aluminum hydroxide and hydrochloric acid, and the production technology is the first technology spray drying method in the country. White polyaluminium chloride is used in papermaking sizing agent, sugar decolorizing clarifier, tanning, medicine, cosmetics, precision casting and water treatment.
The raw materials of yellow polyaluminium chloride are calcium aluminate powder, hydrochloric acid and bauxite, which are mainly used for sewage treatment and drinking water treatment. Raw materials used for drinking water treatment are aluminum hydroxide powder, hydrochloric acid, and a little calcium aluminate powder. For the treatment of drinking water, the state has strict requirements on heavy metals, so both raw materials and production process are better than brown polyaluminium chloride. Yellow polyaluminium chloride is usually produced by drum drying or spray tower drying. It has two solid forms, flaky and powdery.
The raw materials of brown polyaluminium chloride are calcium aluminate powder, hydrochloric acid, bauxite and iron powder. The production process adopts the drum drying method, which is generally mainly used for sewage treatment. Because iron powder is added, the color is brown. The more iron powder is added, the darker the color is. If the iron powder exceeds a certain amount, it is also called polyaluminium ferric chloride at some times, which has excellent effect in sewage treatment
Superiority
PAC polyaluminium chloride has the advantages of good stability in spray drying, wide adaptation to water area, fast hydrolysis speed and strong adsorption capacity. It has the advantages of large alum, high quality and fast sedimentation, low turbidity and good dewatering performance. Under the same water quality, the dosage of spray drying polyaluminum chloride is reduced, especially under the condition of poor water quality. The volume of spray drying products can be reduced by half compared with that of the drum drying polyaluminum chloride, which not only reduces the labor intensity of workers, but also more importantly, reduces the user's water production cost. In addition, spray drying products can ensure safety and reduce water accidents, which is very safe and reliable for drinking water.
Polyaluminium chloride, referred to as high-efficiency polyaluminium chloride, or high-efficiency PAC. The most advanced production technology is adopted and high-efficiency high-quality raw materials are used for reaction polymerization. The production shall be carried out in accordance with the requirements of national standard gb15892-2009. Polyaluminium chloride is processed by spray drying process, so it can also be called high efficiency spray drying polyaluminium chloride..
Effect
The flocculation of poly (synthetic) aluminum chloride is shown as follows:
a. Strong electroneutralization of colloidal substances in water.
b. The hydrolysate has excellent bridging adsorption on suspended solids in water.
c. Selective adsorption of soluble substances.
Polyaluminium chloride is an inorganic polymer coagulant. The characteristics of inorganic polymer water treatment agent with large molecular weight and high charge produced due to the bridging of hydroxyl ions and the polymerization of multivalent anions are mainly determined by the working principle of pressure atomizer.
Performance
a. The purified water quality is better than aluminum sulfate flocculant, and the water purification cost is 15-30% lower than it.
b. The floc forms fast and settles fast, which has greater treatment capacity than traditional products such as aluminum sulfate.
c. The alkalinity of the consumed water is lower than that of various inorganic flocculants, so no or less alkali agent can be added.
d. The applicable source water can be condensed in the range of ph5.0-9.0.
e. Low corrosivity and good operating conditions.
f. Solubility is better than aluminum sulfate.
g. The increase of salt in the treated water is less, which is conducive to ion exchange treatment and high-purity water production.
h. The adaptability to source water temperature is better than inorganic flocculants such as aluminum sulfate.
dried form of liquid polyaluminum chloride. It has the advantages of convenient transportation and does not need a tank car. The disadvantage is that it also needs to be diluted during use to increase the working intensity.
Process classification
a. Roller poly (composite) aluminum chloride has general aluminum content and high water insoluble matter, which is mostly used for sewage treatment.
b. Plate and frame poly (composite) aluminum chloride has high aluminum content and low water insoluble matter. It is used for municipal sewage treatment and domestic sewage treatment.
C, spray drying poly (aluminum chloride) aluminum chloride content is high, water insoluble matter is low, dissolution rate is fast. It is used for drinking water and higher standard water treatment.
Purpose
1. Urban water supply and drainage purification: River water, reservoir water and groundwater.
2. Industrial water purification.
3. Urban sewage treatment.
4. Recovery of useful substances in industrial wastewater and waste residue, promotion of pulverized coal sedimentation in coal washing waste water and recovery of starch in starch manufacturing industry.
5. Various industrial wastewater treatment: printing and dyeing wastewater, leather wastewater, fluorine-containing wastewater, heavy metal wastewater, oily wastewater, papermaking wastewater, coal washing wastewater, mining wastewater, brewing wastewater, metallurgical wastewater, meat processing wastewater and sewage treatment.
6. Papermaking sizing.
7. Sugar refining.
8. Casting.
9. wrinkle proof cloth.
10.catalyst support.
11. pharmaceutical refining
12. rapid setting of cement.
Cosmetic raw materials.
Usage method
The solid product is dissolved into liquid with 1:3 water, and then diluted with 10-30 times of clean water to the required concentration before use. The best pH value is 3.5-5.0. Selecting the best pH value can give full play to the maximum benefit of coagulation. The dosage can be determined according to the different turbidity of raw water. Generally, when the turbidity of raw water is 100-500mg / L, the dosage per thousand tons is 10-20kg. When the turbidity of raw water is high, the dosage can be increased appropriately, and when the turbidity is low, the dosage can be reduced appropriately.
For rural use, the medicine can be put into a water tank, stirred evenly and left standing. The supernatant can be used. Add about 1g of the medicine every 50kg. If the agent 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 together with PAC to form a composite flocculant, or PAC can be 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 polyaluminium chloride in different water quality:
1, In low turbidity water, dilute the solid polyaluminium chloride product with tap water in the ratio of 1:3 (weight ratio) and stir until it is completely dissolved.
2, In domestic and production sewage, about 30g polyaluminium chloride product shall be added first with reference to each ton of sewage. Then add the diluted polyacrylamide product. (if the effect is not obvious, please reduce or increase the dosage of the product as appropriate.)
3, In the paper mill sewage treatment, the proportion of low turbidity water can be used. If the effect is not obvious, it can be added at discretion.
4, When the turbidity of raw water is 100-500mg / L, the dosage is 5-10mg, that is, the dosage per thousand tons of water is 5-10kg. Before use, it is best to conduct a small test according to the water quality characteristics, select the best value, and then put into use.
Proportion of common sewage
| Application area | Unit: kg / KT water | Application area | Unit: kg / KT water |
| Domestic water | 2.5~25 | Industrial water | 2.5~25 |
| Urban sewage | 15~50 | Electroplating wastewater | 20~100 |
| Metallurgical Wastewater | 20~150 | Papermaking wastewater | 50~300 |
| Printing and dyeing wastewater | 100~300 | Bleaching and dyeing wastewater | 100~300 |
| Paint making wastewater | 100~300 | Tannery wastewater | 100~300 |
| Food wastewater | 50~150 | Chemical wastewater | 50~100 |
| Emulsified wastewater | 50~200 | Coal washing wastewater | 30~100 |
Packaging and precautions of polyaluminium chloride
1. external plastic woven bag with plastic film set inside. The net weight of each bag is 25kg. It can also be modified according to user requirements. In addition, liquid polyaluminium chloride is sold.
2. It is forbidden to mix, transport and store the product with toxic substances. The product should be stored indoors in a dry, ventilated and cool place without moisture.
3. Handle with care during loading and unloading, and the storage period of solid products is one year.
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