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Homopolymerization Polyacrylamide Especially For Urban Sewage Treatment

- Sep 08, 2017 -

Polyacrylamide PAM is a linear polymer compound, because it has a variety of active groups, with many substances affinity, adsorption to form hydrogen bonds. Mainly for the flocculation of the negative charge of the colloid, with the turbidity, decolorization, adsorption, bonding and other functions for dyeing, paper, food, construction, metallurgy, mineral processing, coal, oil, aquatic products processing and fermentation industry organic colloid content Higher wastewater treatment, especially for urban sewage, urban sludge, paper sludge and other industrial sludge dewatering treatment.

First, the product description:

Polyacrylamide is a water-soluble polymer. Because of its molecular chain contains a certain number of polar groups, can be suspended by the adsorption of solid particles in the particles between the particles or through the charge and the particles cohesion to form large flocs. 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.

Second, the product features:

1, cationic, anionic, non-ionic, zwitterionic, complete variety specifications, to meet all needs.

2, good water solubility, in cold water can be completely dissolved.

3, add a small amount of this series of products, you can receive a great flocculation effect. Generally only need to add 0.01 - 10 ppm (0.01 - 10g / m3), you can fully play a role.

4, while using this series of products and poly aluminum chloride, can show greater results.

Third, the function: This series of products flocculation effect is very strong, because it has: l, clarify the role of purification; 2, sedimentation promoting effect; 3, filtration to promote the role of 4, thickening (thick) and other effects. In the waste water, waste treatment, sludge dewatering, drilling mud additives, mineral processing, coal washing, paper and so on, to fully meet the requirements of various fields.

Fourth, use:

1, when used, dubbed 0.1 - 0.3% concentration of aqueous solution to use neutral non - salt - containing debris of water is appropriate.

2, dissolved, the series of products evenly spread into the stirring water, stirring speed control at 100-300rpm, the appropriate heating (<60 ℃), can be accelerated to dissolve.

3, adjust the PH value of the treated solution, so that this series of products to play a full role (by selecting the best PH value of the test and the amount of this product).

4, by adding this product solution, should be accelerated with the treated liquid mixture, the emergence of flocs, slow down the speed to facilitate the growth of flocs and accelerated sedimentation.

5, packaging, storage and precautions:

25Kg woven plastic woven bag or paper-plastic bag, can also be packaged according to user requirements. Polyacrylamide itself is not toxic, only when the inhalation of more than five thousandth of the gastrointestinal mucosa due to the absorption of nutrients blocked and harmful. Polyacrylamide residues in the acrylamide monomer toxic, food applications to be strictly controlled. Storage, pay attention to heat, moisture, to prevent damage to packaging, dry powder products will be long-term exposure to moisture caking. Stacking layer number shall not exceed 20 layers. Effective storage period is 2 years.

Sixth, on the impact of polyacrylamide selection of the main factors:

The first influencing factor is the charge of the suspended particles in the water.

Anionic polyacrylamide molecular chain contains a certain amount of polar groups can adsorb suspended solids in the water with suspended solids, so it is particularly suitable for water treatment with suspended solids in the water treatment process, and cationic polyacrylamide in the medium It is effective to use the cationic polyacrylamide to be several times or several times higher than that of the anion / anionic polyacrylamide or the inorganic salt, and it is effective to use the cationic polyacrylamide in the effluent, , Because this type of waste water is generally charged with electricity.

The second influencing factor is the pH of the water.

Nonionic polyacrylamide in its molecular chain contains a certain amount of polar genes can adsorb suspended solids in water, so that the formation of large flocs between the ions. Especially when the sewage is acidic, the most suitable for this product, widely used in chemical industry wastewater, waste treatment, municipal sewage treatment, with inorganic flocculant poly iron, poly aluminum and other inorganic salts used in conjunction, the effect can be increased several times Anionic polyacrylamide is particularly suitable for suspended particles, coarse, high concentration, the particles with positive charge, water PH value of neutral or alkaline sewage, the product is widely used in the water industry, high turbidity water purification, Clean, coal, mineral processing, metallurgy, iron and steel industry, zinc, aluminum processing industry, the electronics industry and other water treatment, polyacrylamide and inorganic flocculant poly iron, poly aluminum and other inorganic salts with the effect can be improved several times!

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