Difference Between Flocculation and Deflocculation

Thekey difference在絮凝和屈服之间是flocculation is the formation of flocs by the clumping of fine particles, whereas deflocculation is thedispersionof flocs to form a stable colloid.

Flocculation refers to the formation of clumps from fine particles in acolloid. These clumps are called flocs. We mainly use this term regardingsuspensions. Deflocculation, on the other hand, is the opposite of flocculation.

1.Overview and Key Difference
2.What is Flocculation
3.什么是屈服
4.Side by Side Comparison – Flocculation vs Deflocculation in Tabular Form
5.概括

What is Flocculation?

絮凝是通过悬浮液中细颗粒聚集的团块形成。这些团块称为絮凝物或薄片。絮凝可能是自发发生的，也可能是由于添加了澄清剂。但是，这种泡沫形成与降水不同。这是因为在降水中，溶解的成分在絮凝时形成固体，未溶解的成分形成固体。

Difference Between Flocculation and Deflocculation

Figure 1: Flocculation

After the formation of the floc, it may float to the top of the suspension, settle at the bottom or disperse through the suspension. If the flocs are on the top of the suspension, we call it “creaming”, and if they are at the bottom, we call it “sedimentation”.

什么是屈服?

Deflocculation is the dispersion of flocs in a suspension. Deflocculants can make this happen by increasing zeta potential (the potential difference existing between the surface of a solid particle immersed in a conducting liquid (e.g. water) and the bulk of the liquid) and the repulsive forces between particles.

In a deflocculated suspension, collide particles act as individual particles, and there are no flocs or aggregates. Here, the rate of sedimentation is slow because smaller particles rather than large clusters of particles are involved in settling. The supernatant will always have cloudiness in a deflocculated suspension.

絮凝和屈服之间有什么区别？

The key difference between flocculation and deflocculation is that flocculation is the formation of flocs by the clumping of fine particles whereas deflocculation is the dispersion of flocs to form a stable colloid. Moreover, flocculation occurs when clarifying agents are added while deflocculation occurs when deflocculants are added.

Furthermore, another significant difference between flocculation and deflocculation is that flocculation decreases the viscosity of a suspension, whereas deflocculation increases the viscosity of a suspension. As a result, the rate of sedimentation in a flocculated suspension is higher than the rate of sedimentation in a deflocculated suspension.

概括– Flocculation vs Deflocculation

In brief, flocculation and deflocculation are processes that are opposite to each other. The key difference between flocculation and deflocculation is that flocculation is the formation of flocs by the clumping of fine particles, whereas deflocculation is the dispersion of flocs to form a stable colloid.