Year1
- 分子量：
- 18-20million
- 水解度：
- 23-25%
- 固含量：
- 89%
Anionic polyacrylamide is a water-soluble polymer. Because its molecular chain contains a certain number of polar groups, it can adsorb solid particles suspended in water to bridge the particles or aggregate the particles to form large flocs through charge neutralization. Therefore, it can accelerate the sedimentation of particles in suspension, and has very obvious effects on accelerating solution clarification and promoting filtration.
Usage: Mainly used for flocculation, sedimentation, sedimentation and clarification treatment of various industrial wastewaters, such as steel plant wastewater, electroplating plant wastewater, metallurgical wastewater, coal washing wastewater and other sewage treatment sludge dehydration. It can also be used for drinking water clarification and purification treatment.
Two main technical indicators
Appearance of white particles
Solid content
Molecular weight of 10,000
High efficiency
Charge density
Hydrolysis degree
Dissolution time Minutes
Odorless
Thermal stability: Easy to decompose when the temperature exceeds ℃
Toxicity and non-toxic
Corrosive and non-corrosive
Hygroscopic solids are hygroscopic
Three product features
Good water solubility and can be completely dissolved in cold water.
Add a small amount of this anionic polyacrylamide product to achieve a great flocculation effect. Generally just adding / will give full effect.
Using anionic polyacrylamide products and inorganic flocculants polymerized iron, polyaluminum chloride, iron salts, etc. at the same time can show greater effects.
Anionic polyacrylamide has the characteristics of
clarification and purification
sedimentation promotion
filtration promotion
thickening and other functions.
Four Usage Methods
When using, prepare a concentrated aqueous solution. It is advisable to use neutral water without salts and impurities.
When dissolving, evenly sprinkle the anionic polyacrylamide product into the stirring water, and control the stirring speed. Appropriate heating can speed up dissolution.
Adjust the value of the liquid to be treated so that the anionic polyacrylamide product can fully exert its effect. Select the best value and the dosage of this series of products through experiments.
When adding anionic polyacrylamide product solution, the mixing with the liquid to be treated should be accelerated. When flocs appear, the stirring speed should be slowed down to facilitate the growth of flocs and accelerate settlement.
Five principles of use
The use of polyacrylamide should follow the following principles
Granular polyacrylamide flocculant cannot be added directly to sewage. It must be dissolved in water before use, and its aqueous solution can be used to treat sewage.
The water used to dissolve the granular polymer should be clean such as tap water and not sewage. Normal temperature water is enough and generally does not need to be heated. Dissolution is very slow when the water temperature is lower than ℃. Increasing the water temperature will speed up the dissolution rate, but above ℃ will accelerate the degradation of the polymer and affect the use effect. Generally, tap water is suitable for preparing polymer solutions. Water with strong acid, strong alkali and high salt content is not suitable for preparation.
To select the concentration of the polymer solution, Lebon recommends adduct powder in 1 liter of water.
Six Precautions
Operators should wear protective equipment and wash with water after contact with skin.
Rinse the site with water frequently to prevent slipping and injuries.
Anionic polyacrylamide products should be stored in a cool, dry place in a sealed container.
Seven Packaging, Storage, Transportation and Precautions
Packaged in plastic-lined woven bags or paper-plastic composite bags, or according to user requirements.
During storage and transportation, pay attention to heat and moisture to prevent damage to the packaging. Dry powder products will absorb moisture and agglomerate if left exposed for a long time. The number of stacking layers must not exceed 1 layer. The effective storage period is years. The particle size of this product is determined, and it can also be produced according to user requirements.
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