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Anionic Polyacrylamide used in sewage treatment

Polyacrylamide Names and Identifiers
Acrylamide resin
anionic polyacrylamide
Cationic Polyacrylamide
Acrylamide gel solution
non-ionic polyacrylamide
yacrylamide dry powder,non-ionic
Polyacrylamide dry powder,cationic
Polyacrylamide Physico-chemical Properties
Molecular Formula:[CH2CH(CONH2)]n
Molar Mass:71.0785
Water Solubility:SOLUBLE
Solubility:is a water-soluble polymer
Appearance:White or milk-colored flowable powder
Storage Condition:Room Temprature
Sensitive:Easily absorbing moisture
Physical and Chemical Properties:density 1.3
Anionic Polyacrylamide
A200189% MIN2.0-9.09004-5%

What are the common types of polyacrylamide?

The common types of polyacrylamide are: anionic, cationic, and nonionic polyacrylamide. It is a linear water-soluble polymer and one of the most widely used varieties of water-soluble polymers. It is mainly used for high-efficiency Flocculants, thickeners, paper strengthening agents and liquid drag reducers are widely used in water treatment, papermaking, petroleum, coal, mining and metallurgy, geology, textile, construction and other industrial sectors. The following Shijian Chemical specifically introduces the role of anionic, cationic, and nonionic polyacrylamide in sewage treatment.

The role of anionic polyacrylamide in sewage treatment:

Anionic polyacrylamide is a water-soluble high molecular polymer, suitable for inorganic suspensions with high concentration and positive charge, and coarse suspended particles (0.01-1mm) with neutral or alkaline pH value. It is mainly used for flocculation and sedimentation of various industrial wastewater, clarification treatment (such as steel factory wastewater, electroplating factory wastewater, metallurgical wastewater, coal washing wastewater, etc.) sewage treatment and sludge dehydration, etc., and can also be used for drinking water clarification and purification treatment. Because its molecular chain contains a certain number of polar groups, it can absorb solid particles suspended in water to bridge between particles or agglomerate particles to form large flocs through charge neutralization, so it can accelerate particles in suspension. Settling, there is a very obvious effect of accelerating solution clarification, promoting filtration, etc.

The appearance of polyacrylamide is white powder, the molecular weight is from 6 million to 25 million, and it has good water solubility. It can be dissolved in water in any proportion and insoluble in organic solvents. The effective pH range is 7~14. It has the characteristics of high polymer electrolyte in neutral alkaline medium, is sensitive to salt electrolyte, and can be cross-linked with high-valent metal ions to form an insoluble gel. And odorless, non-toxic, non-corrosive;

Precautions for use:

1. Granular polyacrylamide cannot be directly added to the sewage. It must be dissolved in water before use, and then the aqueous solution is used to treat the sewage.

2. The water for dissolving granular polymers should be clean tap water, not sewage. Normal temperature water is enough, generally do not need to be heated. It dissolves very slowly when the water temperature is lower than 5°C. Increasing the water temperature increases the dissolution rate, but above 40°C 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.

3. The concentration of the polymer solution is recommended to be 0.1%-0.3%, that is, add 1g-3g polymer powder to 1 liter of water.


What is Polyacrylamide?

Polyacrylamide is a high molecular weight polymer formed by the polymerization of acrylamide monomers. It has excellent water retention, adsorption, and gelation properties, making it widely used in various industrial and environmental fields.

What is the difference between anionic and cationic polyacrylamide?

polyacrylamide anion type Pam is suitable for high concentrations of positively charged inorganic suspensions, as well as coarse suspended particles (0.01-1mm), with a ph value of neutral or alkaline solution. Polyacrylamide cationic Pam is suitable for suspending materials with negative charge and organic matter.

What products can Polyacrylamide manufacturers provide?

Polyacrylamide manufacturers can provide different types of Polyacrylamide products, including cationic polymers, non-ionic polymers, and anionic polymers. These products can be provided in solid powder, granule, or solution form according to different needs.

How to choose the right Polyacrylamide product?

The technical indexes of polyacrylamide are generally molecular weight, hydrolysis degree, ionic degree, viscosity, residual monomer content, etc., so the quality of PAM can be judged from these indexes.Understand the source of sludge,and dehydration equipment also importment for us to choose the right polyacrylamide.

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