Home > News > Content
Nonionic Polyacrylamide Advantages Of Performance
Aug 24, 2017

Nonionic polyacrylamide is a water-soluble polymer or polyelectrolyte. Because of its molecular chain contains a certain number of polar groups, it can be adsorbed by the water suspended solids, so that the particles between the bridge or through the charge and the particles condensed to form a large floc. Therefore, it can accelerate the sedimentation of particles in the suspension, there is a very clear way to speed up the clarification of the solution to promote filtration and other effects. Mainly used for a variety of industrial wastewater flocculation settlement, sediment clarification. Such as paper and pulp wastewater wastewater treatment, mineral processing and metal smelting process of wastewater treatment, steel and stone processing plant wastewater treatment.

Physical properties, the physical properties of non-ionic polyacrylamide is mainly determined by the behavior in aqueous solution. Since the molecular chain contains an amide group or an ion gene, it is characterized by high hydrophilicity and can be dissolved in water in various proportions, Amide aqueous solution has good tolerance to the electrolyte, such as amine chloride, sodium sulfate and so on, are also compatible with the surfactant.

Reaction principle, non-ionic polyacrylamide molecular chain on the side of the ladder is active, it can occur a variety of chemical reactions can be obtained a variety of derivatives, but due to the proximity of gene effects, the reaction is often not fully carried out.

Because nonionic polyacrylamide (NPAM) is a macromolecule polymer or polyelectrolyte, its molecular chain contains a certain amount of polar gene to adsorb solid particles suspended in water, so that the intergranular bridge forms a large floc. It accelerates the sedimentation of particles in the suspension, there is a very clear way to speed up the clarification of the solution to promote filtration and other effects

Application areas

1, as a flocculant, mainly used in industrial solid-liquid separation process, including sedimentation, clarification, enrichment and sludge dewatering and other processes, the application of the main industries are: urban sewage treatment, paper industry, food processing industry, petrochemical industry, Metallurgical industry, mineral processing industry, dyeing industry and sugar industry and various industrial wastewater treatment. Used in the municipal sewage and meat, poultry, food processing waste water treatment in the process of sludge sedimentation and sludge dewatering, through its positive charge groups on the sludge in the negative charge of organic colloid neutralization and High polymer excellent bridging function, to promote colloidal particles gathered into large pieces of floc, separated from its suspension. The effect is obvious, less dosage.

2, in the paper industry can be used as paper dry strength agent, retention aid, filter aid, can greatly improve the quality of paper, cost savings, improve the production capacity of paper mills. Can be directly with the inorganic salt ions, fibers and other organic polymer electrostatic bridge in order to enhance the physical strength of the paper to reduce the loss of fiber or filler, to speed up the filter, from the enhanced, retention, help filter, can also be used White water treatment, at the same time, in the deinking process can play a significant flocculation effect.

3, fiber slurry (asbestos - cement products) can be formed asbestos - cement products, drainage improved, so that the strength of asbestos blanks increased; in the insulation plate, can improve the ability of additives and fiber binding.

4, in the mining, coal preparation industry can be used for mine wastewater, coal washing wastewater clarifier.

5, can be used for dyeing wastewater, leather waste water, oily wastewater treatment, so that in addition to turbidity, decolorization, in order to meet the emission standards.

6, in the phosphoric acid purification, contribute to the wet phosphoric acid process gypsum separation.

7, for the river water source of the water plant flocculant water treatment.

Advantages of performance, the advantages of non-ionic polyacrylamide is mainly used as a flocculant. Because of its molecular chain contains a certain amount of polar genes can adsorb suspended solids in water, so that the bridge between the particles to form a large floc. Nonionic polyacrylamide can accelerate the sedimentation of particles in the suspension, there are very obvious to speed up the clarification of the solution to promote filtration and other effects, widely used in chemical industry wastewater, waste treatment, municipal sewage treatment. Especially when the sewage is acidic, the use of this product is most appropriate. With inorganic flocculants poly iron, poly aluminum and other inorganic salts used in conjunction.