Question

Which of the following is a size reduction unit operation in liquids?

• A. Milling
• B. Homogenization
• C. Grinding
• D. Mixing

Hint:

In the processing of liquids, homogenization is the key technique for achieving uniform particle sizes, especially for emulsions and suspensions.

Answer 1

The Correct Option is B

Homogenization is a size reduction operation that is typically used for liquids, where the goal is to break down larger particles or droplets into finer, more uniform sizes. This process is essential in industries like food and pharmaceuticals to create consistent product quality, such as emulsions or suspensions. Homogenizers use high pressure or mechanical force to break down particles into smaller sizes.
- Option (1) Milling is generally used for size reduction in solids rather than liquids, although there are certain types of milling that can be applied to liquids.
- Option (3) Grinding is also a size reduction process but is typically used for solid materials.
- Option (4) Mixing involves blending different substances together but does not necessarily reduce the size of particles in liquids.
Therefore, the correct answer is option (2): Homogenization.