WELLDONE CHEMICAL
The principle of action of polyacrylamide flocculants
Source: | Author:Vicky | Published time: 2023-02-16 | 612 Views | Share:
PAM molecular chains can be fixed on different particle surfaces to form a bridge between the sludge colloidal particles and the polymer, and at the same time, the polar groups on the molecular chains adsorb the dispersed particles, so that the particles form large Agglomerates of blocks settle.

1. Adsorption and bridging: PAM molecular chains can be fixed on different particle surfaces to form a bridge between the sludge colloidal particles and the polymer, and at the same time, the polar groups on the molecular chains adsorb the dispersed particles, so that the particles form large Agglomerates of blocks settle.

 

2. Electrostatic neutralization: The ζ potential on the surface of sludge colloidal particles is the reason for preventing the coagulation and precipitation of dispersed particles. When CPAM flocculant with the opposite surface charge is added, charge neutralization and electrostatic adsorption can occur, so that The zeta potential decreases and aggregation occurs.

 

3. Strengthening effect: PAM molecular chain connects the sludge dispersed phase together through various mechanical, physical and chemical means to form a network structure, thereby playing a reinforcing role