What is flocculation in chemistry?

Flocculation Flocculation is a process of contact and adhesion whereby dispersed particles form larger-size clusters. Flocculation can occur through the use of a coagulant, flocculant or both. Coagulants achieve flocculation through charge neutralisation whereas flocculants physically bind clay and colloidal particles together.

How does flocculation occur?

Flocculation can occur through the use of a coagulant, flocculant or both. Coagulants achieve flocculation through charge neutralisation whereas flocculants physically bind clay and colloidal particles together. The use of natural and synthetic polymeric flocculants can be used to generate larger, more stable flocs and may reduce treatment times.

What is a flocculant used for?

The use of natural and synthetic polymeric flocculants can be used to generate larger, more stable flocs and may reduce treatment times. This is achieved by bringing dispersed particles together, increasing the effective particle size. Flocculants can be used alone, or in combination with coagulants.

What are nasfloc PolyDADMAC and polyamine coagulants used for?

NASFLOC polydadmac and polyamine coagulants are often used in conjunction with our flocculant range for solid/liquid separation in cases of high clay content substrates or very finely suspended solids. The result is very high quality supernatants with improved rates of solid/liquid separation.

How can cationic flocculants improve turbid water treatment?

Cationic flocculants can improve the speed of turbid water treatment through bridging and/or electrostatic patch effects. Requirements of bridging flocculants are that they be strongly adsorbed onto the particles, and that they are capable of spanning the gap between the particles.

Are flocculants a coagulant?

Flocculants can be used alone, or in combination with coagulants. Flocculants may consist of anionic (negatively charged), cationic (positively charged) or non-ionic (no charge) charged functional groups. Charged flocculants are also referred to as polyelectrolytes.