Difference Between Coagulation and Flocculation

Flocculation is synonymous with agglomeration and coagulation / coalescence. Basically, coagulation is a process of addition of coagulant to destabilize a stabilized charged particle. Meanwhile, flocculation is a mixing technique that promotes agglomeration and assists in the settling of particles.

1. What is the difference between flocculation and precipitation?
2. What do you mean by flocculation?
3. What is the principle of coagulation?
4. Is alum a coagulant or flocculant?
5. What is flocculation used for?
6. What is a flocculation test?
7. How is flocculation done?
8. Is polymer a coagulant or flocculant?
9. What is the coagulant?
10. What is an example of coagulation?
11. Why alum is used as coagulant?
12. What do coagulation tests indicate?

What is the difference between flocculation and precipitation?

Flocculation is the process of formation of solid aggregates from small particles. Precipitation is the process of formation of an insoluble solid mass. The main difference between flocculation and precipitation is that flocculation forms floccules whereas precipitation forms precipitates.

What do you mean by flocculation?

Flocculation is a two-step particle aggregation process in which a large number of small particles form a small number large flocs. Step 1: Coagulation. Small particles usually carry negative surface charges that hinder aggregation and settling (1a).

What is the principle of coagulation?

Coagulation and flocculation are related terms describing the process of preparing colloidal materials for removing by sedimentation. Coagulation is the process used to reduce the energy forces present around particles that tend to keep them from joining together to form a larger mass.

Is alum a coagulant or flocculant?

To induce coagulation, a coagulant (typically a metallic salt) with the opposite charge is added to the water to overcome the repulsive charge and "destabilize" the suspension. For example, the colloidal particles are negatively charged and alum is added as a coagulant to create positively charged ions.

What is flocculation used for?

4 Flocculation. Flocculation is a process by which a chemical coagulant added to the water acts to facilitate bonding between particles, creating larger aggregates which are easier to separate. The method is widely used in water treatment plants and can also be applied to sample processing for monitoring applications.

What is a flocculation test?

: any of various serological tests (as the Mazzini test for syphilis) in which a positive result depends on the combination of an antigen and antibody to produce a flocculent precipitate.

How is flocculation done?

How does flocculation work? Flocculation is based on a chemical process. It involves adding chemicals to the wastewater in sequence and allowing tiny solid particles to collect together in a larger mass called a floc. As a treatment of wastewater, flocculation is carried out in stages.

Is polymer a coagulant or flocculant?

Polymers (long-chained, high-molecular-weight, organic chemicals) are becoming more widely used. These can be used as coagulant aids along with the regular inorganic coagulants. Anionic (negatively charged) polymers are often used with metal coagulants.

What is the coagulant?

Coagulants are a substance which cause particles in a liquid to curdle and clot together. ... Coagulation treatment chemicals are used in effluent water treatment processes for solids removal, water clarification, lime softening, sludge thickening, and solids dewatering.

What is an example of coagulation?

When it is heated the runny yolk and white (albumen – which is the major source of protein) turn solid. The proteins in the egg start to thicken, a process known as coagulation. ... Coagulation is irreversible, the proteins cannot be turned back into their liquid form. Another example is heating milk.

Why alum is used as coagulant?

When alum is added to water, it reacts with the water and results in positively charged ions. ... These particles have a negative charge, so the positively charged coagulant chemicals neutralize them during coagulation. Then, during flocculation, the particles are drawn together by van der Waal's forces, forming floc.

What do coagulation tests indicate?

Coagulation tests measure your blood's ability to clot, and how long it takes to clot. Testing can help your doctor assess your risk of excessive bleeding or developing clots (thrombosis) somewhere in your blood vessels. Coagulation tests are similar to most blood tests.