TW EASTERN CHEM SINGAPORE PTE.LTD
Effect of Polyacrylamide Solubility Concentration on Using Result
Polyacrylamide
(PAM) is a water-soluble polymer, which is soluble in water and insoluble in
most organic solvents. A certain amount of PAM is added to the clear water, and
the solution is transparent liquid. If excessive PAM is added, the solution
will become transparent colloid and lose its fluidity. If excessive PAM is
added at one time, the PAM will form a condensate in water and cannot be
dissolved any more.
Dissolved polyacrylamide should pay
attention to:
1. The
water for dissolving polyacrylamide should be clear water. There should be no
impurities in the water, let alone sewage. This will reduce the dissolution and
flocculation effect of PAM;
2. Put 1/3
of water into the dissolving tank and start stirring, then add PAM dry powder
and water while adding dry powder, until the dissolving tank is full;
3. When
adding PAM dry powder, it should be slowly added to the water, not dumped,
which will form a condensate in the water, cannot be dissolved again, and cause
waste materials;
4. The
stirring speed should not be too fast. If the stirring speed is too fast, the
molecular chain of polyacrylamide will be shortened and the use effect will be
reduced. The general speed control is 60 rpm linear speed;
5. The ideal
concentration of polyacrylamide should be controlled at 1-3, too low to play an
effective role. If the concentration is too high, the molecular chain cannot be
fully extended or forming gelatinous substances, which will reduce the use
effect. So when using polyacrylamide, the concentration of PAM can be adjusted
reasonably according to the need.