Year1
- 分子量：
- 6-14million
- 离子度：
- 5-65%
- 固含量：
- 89%
1 Product Introduction
Cationic polyacrylamide is a linear polymer compound. Because it has a variety of active groups, it can form hydrogen bonds by affinity adsorption with many substances. It mainly flocculates negatively charged colloids and has functions such as turbidity removal, decolorization, adsorption and adhesion. It is suitable for wastewater treatment with high organic colloid content in industries such as dyeing, papermaking, food, construction, metallurgy, mineral processing, pulverized coal, oil fields, aquatic products processing and fermentation, and is especially suitable for urban sewage. Dehydration treatment of urban sludge, papermaking sludge and other industrial sludge.
Appearance: White powder or granular
Solid content
Molecular weight: 10,000
Water-insoluble matter
Residual monomer
Cation degree
Dissolution time Minute 2 Product Features
Good water solubility and can be completely dissolved in cold water.
Adding a small amount of cationic polyacrylamide can achieve great flocculation effect. Generally, adding / can give full effect.
The simultaneous use of cationic polyacrylamide and inorganic flocculants such as polymerized iron and polyaluminum chloride can show greater effects.
Three application scopes
For sludge dewatering, the corresponding brand of the product can be selected according to the properties of the sludge. In this way, during dehydration, large flocs will be produced that will not stick to the filter cloth and will not fall apart during filtration and will cause sludge flow. The cake is thicker, the dehydration efficiency is high, and the moisture content of the mud cake is below.
Used for the treatment of domestic sewage and organic wastewater, cationic polyacrylamide products are electropositive in acidic or alkaline media, so they can flocculate and settle negatively charged sewage with suspended particles in the sewage, and are very effective in clarifying it. Such as the production of grain alcohol wastewater, papermaking wastewater, urban sewage treatment plant wastewater, beer wastewater, MSG plant wastewater, sugar wastewater, high organic content wastewater feed wastewater, textile printing and dyeing wastewater, etc., use cationic polyacrylamide than anionic non-ionic The effect of polyacrylamide or inorganic salts is several times or dozens of times higher, because this type of wastewater is generally negatively charged.
Flocculant used to treat tap water with river water as the water source. It has low dosage, good effect and low cost. Especially when used in combination with inorganic flocculant, the effect is better. It will become a good solution for the treatment of the Yangtze River, Yellow River and other river basins. Highly efficient flocculant for water plants.
Four Usage Methods
Determine the best model and the best dosage of the product through small tests.
The product is formulated into an aqueous solution with solid content concentration, preferably neutral water without salt.
When dissolving in water, sprinkle this product evenly into the stirred water. Appropriate heating < ℃ can accelerate the solution into a solution. The stirring time is about minutes.
Solid products are packed in paper bags lined with plastic bags, each bag.
This product is hygroscopic and should be stored in a sealed, cool, dry place at a temperature below ℃.
Avoid spreading solid products on the ground to prevent the product from absorbing moisture and making the floor slippery.
When preparing aqueous solutions, they should be prepared in enamel, galvanized, aluminum or plastic buckets, and should not be prepared and stored in iron containers.
When dissolving, attention should be paid to adding the product evenly and slowly into the dissolver with stirring and heating measures. Solidification should be avoided. The solution should be prepared at a suitable temperature, and excessive mechanical shearing for a long time should be avoided. It is recommended that the mixer is rotated otherwise it will cause polymer degradation and affect the use effect.
The aqueous solution should be prepared as it is used. When the dissolved solution is left for a long time, its performance will gradually decrease depending on the water quality.
After adding a flocculant aqueous solution to the suspension, if vigorous stirring is performed for a long time, the flocculation that has been formed will be destroyed.
5. Principles that should be followed when using polyacrylamide aqueous solution
Granular polyacrylamide 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 in which the granular polymer is dissolved should be as clean as tap water. Normal temperature water is enough and generally does not need to be heated. If the water temperature is lower than ℃, the solution will be very slow. 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.
It is recommended to select the concentration of polymer solution by adding polymer powder to 1 liter of water.
Concentration selection should consider the following factors
The preparation tank is small and the daily dosage is large, it is recommended to prepare a slightly thicker one.
When the molecular weight of the polymer is very high, it is recommended to make it slightly dilute.
When the polymer solution is thrown into the sewage, if the dispersion condition is not good due to equipment reasons, it is recommended to make it slightly dilute.
Six Product Selection and Application
As long as there is sewage, sludge will be produced. In order to improve the dehydration performance of sludge, sludge dehydrating agent must be used in the process of conditioning sludge
Principles for selecting sludge dewatering agents: cationic polyacrylamide is used to treat organic sludge, and anionic polyacrylamide is usually used to treat inorganic sludge. Sludge with strong alkalinity is generally not suitable for cationic polyacrylamide. Generally, anionic polyacrylamide products are not suitable for products that are highly acidic.
When processing various industrial sludge or domestic sludge, different types of sludge dehydration agents must be selected according to the characteristics of the sludge, and the best sludge conditioning can be optimized by more accurately grasping the sludge properties. Agent product polyacrylamide flocculant.
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