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Polyaluminum Chloride Properties: The purified water quality is better than aluminum sulfate flocculant and the water purification cost is 15-30% lower than that. The formation of flocs is quick and the sedimentation speed is fast, which is greater than the traditional aluminum sulfate and other products. Consumption alkalinity in water is lower than various inorganic flocculants, so it is not necessary to cast or less alkali. Adaptable source water PH5.0-9.0 range can be condensed. Low corrosion, good operating conditions. The solubility is better than aluminum sulfate. Less salt increase in treated water is beneficial to ion exchange treatment and high purity water production. The adaptability to the source water temperature is better than inorganic flocculants such as aluminum sulfate. Polyaluminum chloride PAC water purification agent has a very wide range of applications in the field of water supply and wastewater treatment. It is applicable to any source water quality treatment and recycling process, especially in the treatment of various micro-polluting source water, the treatment of low temperature, low turbidity, low alkalinity source water, the pretreatment of pure water, and thermal power plants and steel plants. In terms of water purification and other aspects, the removal rate of water turbidity can be as high as 95 to 98 percent. The commonly used method in industrial waste water is a chemical method. In terms of industrial wastewater, the current main treatment method is to use chemical methods to remove, that is, use appropriate chemical agents to remove COD in water. Most of the chemicals used today use polyaluminum chloride and polyferric sulfate. This is a type of flocculant that has been formulated for a very long time. The efficiency of removing COD is about 30%. Polyaluminum chloride can not only remove bacteria, deodorize, remove fluoride, aluminum, chromium, degreasing, remove turbidity, remove heavy metal salts, and remove radioactive pollutants. In industrial production, polyaluminum chloride is also used in paper sizing, printing and dyeing, dyeing, cement quick-setting agent, precision casting hardener, refractory binder, glycerol refining, sugar refining, fabric wrinkle-resist, medicine and other industries. The water quality of the waste water that can be recycled from different sources is not the same.
How to correctly use the polyaluminium chloride water purifying agent: 1. Mix and stir the polyaluminum chloride product with normal temperature water at a ratio of 1:2.5-1:3 (by weight) for about 30 minutes. After the drug is completely dissolved, add 30-40 times. Diluted with fresh water or used as a liquid diluted with the required concentration (The higher the source water turbidity, the more the secondary dilution plus fresh water). 2. When the source water turbidity is 100-500mg/L, the dosage is 5-10mg, that is, 5-10kg per kiloton of water. Before use, it is best to conduct a small test according to the characteristics of water quality, select the best value, and then use it. 3. The product packaging is lined with plastic bags, and the outer layer is plastic laminating bags, each weighing 25 kg. 4. Store in a cool, dry place to prevent sun exposure. Polyaluminum chloride is a new type of high efficient inorganic polymer coagulant, widely used in industrial water purification, industrial wastewater and urban sewage treatment. Performance of polyaluminum chloride: The cost of water is 20~80% lower than other inorganic coagulants; It can quickly form flocs, and is large in size and quick in sink speed; 3. It is suitable for water sources with various temperatures and has good solubility; The liquid product can adapt to automated dosing, is less corrosive, convenient to operate, and does not block the tube for long-term use. If customers have special requirements on quality, they can produce according to the indicators provided by customers. Polyaluminum chloride use methods and precautions: liquid products can be directly added, can also be diluted with water after the vote; solid products should be dissolved after adding water. The dilution ratio is generally 2 to 20% for solid products and 5 to 50% for liquid products (in percent by weight); the dosage for pharmaceuticals is generally 3 to 40 grams/ton for liquid products and 1 to 15 grams/ton for solid products. The specific dosage is decided by the user according to the mixing experiment and the production experiment; this product can not be mixed with other chemicals; liquid products The company has a special tank to be responsible for transportation, and provide tanks; polypropylene bags for solid products Packaging, lined with plastic bags, 15 ~ 25 kg per bag; 5, liquid polyaluminum chloride shelf life of one year, solid polyaluminum chloride shelf life of two years, should be placed in a dry and ventilated place, but after the damp Does not affect the use of results. Therefore, as long as the polyaluminum chloride is used within the shelf life, it will not fail.
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Polyaluminium Chloride Referred to as PAC. Also commonly referred to as basic aluminum chloride or coagulant, etc., it is a water-soluble inorganic high molecular polymer between ALCL and AL(OH). The general chemical formula is [AL(OH)nCL-nLm Where m represents the level of aggregation and n represents the neutral level of PAC products. Colors are yellow or light yellow, dark brown, dark grey resinous solids. The product has a strong performance of bridging and sucking. During the hydrolysis process, physical and chemical processes such as agglutination, adsorption and precipitation are produced. The basic difference between polyaluminum chloride and traditional inorganic coagulants is that the traditional inorganic coagulants are low molecular crystalline salts, while the structure of polyaluminum chloride consists of multi-modal carboxyl complexes with variable morphology. The flocculation and sedimentation rate is fast and practical. Wide range of PH values, no corrosion of pipeline equipment, clear water consequences, can effectively remove the water quality of the SS, COD, BOD and arsenic, mercury and other heavy metal ions, the product is commonly used in drinking water, industrial water and sewage treatment category. Application method: Apply the solid product after dissolving it as a liquid by adding water, and then diluting it with water to obtain the required concentration. The dosage can be determined according to the different turbidity of the raw water to determine the optimal dosage. When the original water turbidity is -mg/L, the dosage per kiloton is -kg. Packaging and storage: lined with plastic bags, outer layer of plastic film woven bags, each bag weighs 25kg. Store in a cool, dry place, protected from the sun and rain. Polyaluminum chloride (abbreviated as polyaluminum) Alias ​​Alkaline aluminum chloride; Polyaluminum chloride; Aluminum hydroxychloride; PAC, etc. Appearance: white, golden yellow, brown, reddish-brown granular/flaky; CAS NO: 1327-41-9, Technical Standards: The quality of drinking water products conforms to the national standard GB15892-2005.
August 15, 2019