WELLDONE CHEMICAL
TIPS FOR THE USE OF POLYACRYLAMIDE
Source: | Author:Vicky | Published time: 2022-10-21 | 50 Views | Share:
Polyacrylamide (PAM) is more and more widely used in the water treatment industry due to its excellent properties, and the complexity of wastewater has promoted the development of polyacrylamide in a variety of directions with different properties. Before formally adopting our polyacrylamide products, users should conduct a small test in order to determine the optimal dosage and use conditions, and the polyacrylamide use method must be correct. Generally, solid polyacrylamide needs to be dissolved and added in use.

Polyacrylamide (PAM) is more and more widely used in the water treatment industry due to its excellent properties, and the complexity of wastewater has promoted the development of polyacrylamide in a variety of directions with different properties. Before formally adopting our polyacrylamide products, users should conduct a small test in order to determine the optimal dosage and use conditions, and the polyacrylamide use method must be correct. Generally, solid polyacrylamide needs to be dissolved and added in use.


Due to the high molecular weight and strong viscosity of anions and non-ions, the concentration standard of anion ratio is 1‰ (the concentration can be adjusted appropriately according to the turbidity of sewage. The higher the turbidity, the lower the concentration; the lower the turbidity, the dosage can generally be increased, But it is better not to change its concentration, otherwise it will easily affect the smooth flow of the pipeline.) The molecular weight of cations is lower than that of anions, so the viscosity is also weaker than that of anions, so the standard concentration of cations is set at 2‰ (the concentration can also be adjusted according to the turbidity of sewage. If the concentration is high, the concentration is low; if the turbidity is low, the concentration can be appropriately increased, but it should not exceed 4‰, otherwise it will easily affect the smooth flow of the pipeline).


When the inorganic flocculant is mixed with PAM, the inorganic flocculant and PAM should be dissolved in two stirring devices respectively, otherwise it will cause the interaction between the two flocculants, resulting in agglomeration and affecting the effect; attention should be paid to dosing when using Sequence, generally speaking, when processing fine particles below 50μm, add inorganic flocculant first, then add PAM solution.


PAM products should not be stored in iron containers. Dry powder PAM generally has stable performance for long-term storage, and the performance of PAM dissolved in water will decrease with time, and the lower the concentration, the faster the performance decline. For example, 0.1% cationic PAM solution is extremely unstable, and its performance begins to decline after 1-2 days. Therefore, PAM products should be prepared and used immediately.