Are cationic and ionic flocculants better for chromite tailings?

Both ionic and cationic flocculants were shown to be efficient in the flocculation of chromite tailings. The results revealed that when the ionic strength and MW were low, anionic flocculation characteristics improved, but cationic flocculants performed better when the cationic strength and MW were high.

Do cationic and anionic Pam improve particle flocculation characteristics?

The results revealed that when the ionic strength and MW were low, anionic flocculation characteristics improved, but cationic flocculants performed better when the cationic strength and MW were high. The success of anionic and cationic PAM in flocculation can be related to particle charges that allow for particle flocculation with polymers.

Can polyanion reduce cationic flocculants?

According to ref. , even the inclusion of a little polyanion can considerably reduce the flocculating action of cationic flocculants. This suppressive effect can be explained by a decrease in the effective collision radius induced by the swollen polymer coil shrinking because of an oppositely charged polymer link.

Can ionic flocculants produce fine and shear resistant coagulants?

The generation of fine and shear resistant flocculants was demonstrated after initial charge neutralisation using an ionic flocculant. It has long been known that a combination of positively and negatively charged polymers can cause synergistic effects in the coagulation of paper pulp.

Which flocculant is best for flocculation?

Al-PAM, Fe-PAM, and hydrolysed PAM (H-PAM) were shown to have good flocculating qualities, with H-PAM being the least effective and more prone to the overdose of the flocculants studied. Proper mixing had a significant impact on flocculation performance.

Which polymer parameter affects flocculation performance?

The most essential polymer parameter impacting flocculation performance is polymer MW. Longer polymer chains in flocculants with high MW can adsorb onto the surface of several particles at once, whereas macromolecules with lower MWs adhere to fewer particles.