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Chinese aliases: flocculant No. 3; abbreviated as PAM; Polyacrylamide is known as the No. 3 coagulant; Polyacrylamide is divided into anionic polyacrylamide; cationic polyacrylamide; nonionic polyacrylamide; zwitterionic polyacrylamide; English name; pam(acrylamide)
Synonyms: polyacrylamide absorbent gel; polyacrylamide solution; acrylamide resin (low ; acrylamide resin (high ;acrylamide gel
solution; polyacrylamide,hydrolyzed; polyacrylamide; pam
CAS: 9003-05-8 Molecular Formula: (C3H5NO)N Molecular Weight:
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Polyacrylamide.
Referred to as PAM, it is a linear organic polymer.
Aliases: flocculant, anion, cation, polymer; Polymer.
retention and drainage aids, retention aids, dispersants; No. 3 coagulant, polymer, oil displacement agent, etc. (Provided by Shouxin Chemical Engineering Department).
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Polyacrylamide is a kind of polymer, and it is likely that it is the most likely that customers say that they want water purification agent and white medicine.
In detail, it is said to be a flocculant, which is mainly used in sewage treatment, as a flocculant, flocculating and precipitating insoluble substances in sewage.
English abbreviation PAM, full name: polyacrylamide.
In the incense industry, it is used as incense gum powder.
In the paper industry, it is used as a filter aid, retention aid, and dispersant.
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Water treatment is generally called flocculant, coagulant, water treatment agent, white medicine, sedimentation agent, sludge dehydrator.
Paper mills are generally used as dispersants and retention aids and filter aids.
When used in oilfield, it is generally called plugging agent, oilfield viscosity anti-swelling agent, and thickener for oilfield acidification.
In agriculture, it is generally called a water-retaining agent or an extended-release agent.
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It has a wide range of applications in petroleum exploitation, water treatment, textile, papermaking, mineral processing, medicine, agriculture and other industries, and is known as "all industry additives". The main foreign application fields are water treatment, papermaking, mining, metallurgy, etc.; At present, the largest consumption in China is in the field of oil production, and the fastest growth in consumption is in the field of water treatment and papermaking.
Use features. 1. Flocculancy: PAM can make suspended substances play a flocculation role through electric neutralization and bridging adsorption.
2. Adhesion: It can play a role in adhesion through mechanical, physical and chemical actions.
3. Resistance reduction: PAM can effectively reduce the frictional resistance of the fluid, and adding a trace amount of PAM to the water can reduce the resistance by 50-80%.
4. Thickening: PAM has a thickening effect under neutral and acid conditions, and PAM is easy to hydrolyze when the pH value is above 10.
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1. For sludge dewatering, the corresponding model of this product can be selected according to the nature of the sludge, which can effectively dehydrate the sludge before the sludge enters the filter press, when dewatering, the floc is large, the filter cloth is not sticky, and the filter is not dispersed when pressing, the mud cake is thicker, the dewatering efficiency is high, and the moisture content of the mud cake is less than 80%.
2. For the treatment of domestic sewage and organic wastewater, this product is positive in the matching or alkaline medium, so that the sewage with negative charge of suspended particles in the sewage is flocculated and precipitated, and the clarification is very effective.
3. Reinforcing agents and other additives for papermaking to improve the retention rate of fillers and pigments and the strength of paper.
4. It is used as an auxiliary agent for oilfield economics, such as clay anti-swelling agent and thickener for oilfield acidification.
5. It is used as a textile sizing agent, with stable slurry performance, less slurry, low fabric breakage rate, and smooth cloth surface.
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1. The use of polyacrylamide in sludge dewatering.
When used for sludge dewatering, cationic polyacrylamide can be selected according to the sludge, which can effectively dewater the sludge before the sludge enters the filter press.
2. The use of polyacrylamide in the treatment of organic wastewater.
When used for the treatment of domestic sewage and organic wastewater, such as the production of grain alcohol wastewater, the wastewater of urban sewage treatment plants, beer wastewater, monosodium glutamate factory wastewater, sugar wastewater, feed wastewater, etc., the effect of using cationic polyacrylamide is several times or dozens of times higher than that of anionic, nonionic polyacrylamide or inorganic salts, because this kind of wastewater is generally negatively charged.
3. The use of polyacrylamide in the treatment of raw water purification of rivers and lakes.
Polyacrylamide can be used for the treatment of tap water with river water as the water source, because of its low dosage, good effect, low cost, especially with the characteristics of good composite use of inorganic flocculants, it will become a high-efficiency flocculant for the treatment of waterworks in the Yangtze River, the Yellow River and other basins.
In addition, polyacrylamide can also be used as a reinforcing agent and other additives in papermaking. Improve the retention rate of fillers and pigments, and the strength of paper. In the oilfield economic learning auxiliaries, such as clay anti-swelling agent, oilfield acidification with thickener.
It can play a greater role in textile sizing, stable slurry performance, less sizing, low fabric breakage rate, and smooth cloth surface.
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Polyacrylamide is mainly used in the paper industry, tertiary oil recovery, water treatment, solid-liquid separation, sludge dewatering and system thickening.
As a flocculant, it is mainly used in the solid-liquid separation process in industry, including sedimentation, clarification, concentration and sludge dewatering processes, and the main industries used are: municipal sewage treatment, paper industry, food processing industry, petrochemical industry, metallurgical industry, mineral processing industry, dyeing industry and sugar industry and wastewater treatment of various industries. It is used in the sludge sedimentation and sludge dehydration in the process of municipal sewage and meat, poultry and food processing wastewater treatment, and promotes the colloidal particles to aggregate into large flocculents and separate them from their suspension through the positive charge group contained in the negative charge organic colloidal electrical neutralization effect and the excellent bridging and coagulation function of the polymer.
The effect is obvious, and the dosage is small.
Polymer polyacrylamide and its derivatives can be used as efficient flocculants, thickeners, paper enhancers and drag reducers for liquids, which are widely used in water treatment, papermaking, petroleum, coal, mining and metallurgy, geology, textile, construction and other industrial sectors.
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1. It can be used as coagulant, flocculant and sludge dewatering agent in water treatment, which can play the role of coagulation, clarification and sludge dewatering.
2. In the process of papermaking, it can be used as a retention aid and reinforcing agent, which can improve the quality of paper, reduce the consumption of raw materials and pollution to the environment.
3. It can be used as a dewatering agent and oil displacement agent in oil drilling and production, which can play a role in thickening, flocculation and rheological regulation.
4. In the food industry, it can be used for cane juice clarification and syrup phosphorus float extraction in the production of cane sugar and beet sugar.
5. The best used for feed protein is not only stable in quality, but also has good performance.
Polyacrylamide.
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Polyacrylamide, also known as PAM, is often used in the field of sewage treatment and purification. Due to the linear water-soluble polymer, the long molecular chain structure can play the role of flocculation and precipitation purification. At the same time, polyacrylamide has a high viscosity after dissolving, so it can also be used as a binder, thickener, and drag reducer.
From the perspective of physical and chemical properties, polyacrylamide has several characteristics, so focus on the analysis of the scope of action of polyacrylamide and the specific use effect.
Polyacrylamide range of action:
1.Sewage treatment flocculants. Polyacrylamide for the suspended particles in the sewage, coarse, high concentration, the particles have a positive charge, and the water pH value is neutral or alkaline sewage, because the anionic polyacrylamide molecular chain contains a certain amount of polar groups can adsorb the solid particles suspended in the water, so that the particles are bridging to form large flocs.
Therefore, it accelerates the sedimentation of particles in suspension, which has a very obvious effect of accelerating the clarification of the solution and promoting filtration. The product is widely used in the treatment of chemical industry wastewater, waste liquid, and municipal sewage treatment. Water treatment in tap water industry, purification of high turbidity water, sedimentation, coal washing, mineral processing, metallurgy, iron and steel industry, zinc, aluminum processing industry, electronics industry, etc., can play a good role in precipitation, purification and flocculation.
2.Resistance reducer for the petroleum industry. In the process of oil exploitation and production, the use of polyacrylamide in oil production and drilling can effectively reduce friction resistance, improve oil recovery, prevent water channeling, etc., and the comprehensive effect is obvious.
3.Used as a thickener. Polyacrylamide has a high viscosity when dissolved in a ratio of 1/1000. Therefore, it can be added to some products to improve viscosity, and is often used in papermaking, alcohol, and dish soap products, and the effect is ideal.
4.In addition to the above three applications, polyacrylamide is also commonly used in the paper industry. It can effectively improve the retention rate of pigments and fillers, not only provide paper strength, but also reduce the loss of raw materials.
Polyacrylamide.
Polyacrylamide has a wide range of effects, and the treatment effect is more significant. It is especially used as a flocculant in sewage treatment, with a small amount and can effectively and quickly precipitate and purify. The vanadium flowers formed are large and dense, effectively stratified by mud and water, and the treated supernatant is clear and transparent.
Principles of use of polyacrylamide:
1. Granular polyacrylamide cannot be directly added to sewage. It must be dissolved in water before use, and its aqueous solution must be used to treat sewage. >>>More
How much is a ton of polyacrylamide, give a market ** as a reference: >>>More
Thickening generally uses anionic polyacrylamide, abbreviation: APAM. >>>More
Polyacrylamide has the following effects:
1.Principle of flocculation: When PAM is used for flocculation, it is related to the surface properties of the flocculated species, especially the kinetic potential, viscosity, turbidity and pH value of the suspension, and the dynamic potential of the surface of the particles is the particles. >>>More
Imported polyacrylamide is mainly used as a flocculant: for suspended particles, coarse, high concentration, particles with positive charge, water pH value is neutral or alkaline sewage, because the anionic polyacrylamide molecular chain contains a certain amount of polar radicals can adsorb the solid particles suspended in the water, so that the particles are bridging to form large flocs. Therefore, it accelerates the sedimentation of particles in suspension, which has a very obvious effect of accelerating the clarification of the solution and promoting filtration. >>>More