Cationic polyacrylamide is a high polymer electrolyte, which is suitable for wastewater treatment with negative charge and rich in organic matter. It is suitable for the treatment of wastewater with high organic colloid content in dyeing, papermaking, food, construction, metallurgy, mineral processing, coal powder, oil field, aquatic processing and fermentation industries, especially for the dewatering treatment of urban sewage, municipal sludge, papermaking sludge and other industrial sludge. Application: the product is widely used in the treatment of chemical industrial wastewater and waste liquid, and municipal sewage treatment.
Flocculation principle: mainly for inorganic suspended particles and suspended solids with positive charge, it can absorb suspended solid particles in water, and bridge between particles to form large flocculate. Therefore, it can accelerate the sedimentation of particles in the suspension, accelerate the clarification of the solution and promote filtration. The pretreatment of sludge with polyacrylamide can change the physical and chemical properties of sludge particle surface, destroy the colloidal structure of sludge, reduce the affinity between sludge particles and water, and improve the dewatering performance of sludge. In order to improve the dewatering performance of sludge, chemical regulation is usually adopted. Before sludge dewatering, chemical adjustment is carried out to make charged inorganic or organic agents react with sludge. Through electric neutralization and chemical bridging, water is separated from particles and particles are agglomerated into large flocs, which can improve sludge dewatering performance.
Appearance: white particles or powder (powder and polyacrylamide products can be provided according to customer needs)
Relative molecular weight: 10-12 million (adjusted according to user needs)
Water insoluble ≤0.3%
Dissolution time ≤60min
According to the monomer content ≤0.1%
Sieve residue (1.40mm screen) ≤5%
Sieve residue (180 μ m screen)≥85%
Shelf life: Solid 2 years, liquid 1 year, prepared solution 24 hours
Toxicity: non toxic
Corrosive: non corrosive
Usage and precautions:
1、0.1% concentration of water solution is suitable for practical neutral salt free water.
2、Due to the wide range of pH value of water, the general dosage is 0.1-10ppm (0.1-10mg / L).
3、Dissolve thoroughly. When dissolving, the water body should be fully stirred up, and then the powder should be added slowly and evenly to prevent the blocking of pipes and pumps caused by large flocs and fish eyes.
4、The stirring speed is generally 200 rpm, and the time is not less than 60 minutes. The dissolution can be accelerated by properly increasing the water temperature by 20-30 ℃. The highest temperature of liquid medicine should be less than 60 ℃.
5、Determine the dosage. The dosage was determined by experiment before use. When the dosage is too low, it will not work. If the dosage is too high, PAM will not flocculate, but disperse and stabilize.
6、The working site should be washed with water frequently to keep it clean. Due to its high viscosity, the surface of PAM scattered underground is smooth when encountering water, which prevents operators from slipping and causing safety accidents.
Precautions for packaging and storage:
1、This product is non-toxic. It should be moisture-proof and rainproof to avoid sunlight exposure.
2、The particle size of the product is 20-80 mesh, which can also be produced according to the requirements of users.
3、The product is lined with plastic bags, and the outer layer is made of plastic laminated woven bags, 25kg / bag and 1000kg / bag.