Question:
Electrodialysis has been used extensively in -
Electrodialysis has been used extensively in -
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A major dairy application of electrodialysis is the demineralization (desalting) of sweet whey.
Removing salty minerals makes the whey powder highly suitable for formulating infant milk formulas.
Removing salty minerals makes the whey powder highly suitable for formulating infant milk formulas.
Updated On: Aug 20, 2026
- Removal of colloidal materials
- Removal of bacteria
- Removal of unionized matter
- Desalting process
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Electrodialysis (ED) is a membrane-based separation process that uses an electric potential gradient as the driving force to move dissolved ion species through ion-selective membranes, separating them from water.
Step 2: Detailed Explanation:
Since the driving force in electrodialysis is an electric field, it acts exclusively on charged ions:
- It is highly effective at removing dissolved salt ions (\(\text{Na}^+\), \(\text{Cl}^-\), \(\text{Ca}^{2+}\)) from a solution.
- Consequently, it is extensively used in the desalting process (desalination of brackish water, demineralization of cheese whey).
- It cannot remove non-ionized solutes (sugars), bacteria, or suspended colloidal particles, which are instead separated using pressure-driven membrane processes like ultrafiltration or microfiltration.
Step 3: Final Answer:
Electrodialysis is extensively used in the desalting process, which corresponds to option (D).
Electrodialysis (ED) is a membrane-based separation process that uses an electric potential gradient as the driving force to move dissolved ion species through ion-selective membranes, separating them from water.
Step 2: Detailed Explanation:
Since the driving force in electrodialysis is an electric field, it acts exclusively on charged ions:
- It is highly effective at removing dissolved salt ions (\(\text{Na}^+\), \(\text{Cl}^-\), \(\text{Ca}^{2+}\)) from a solution.
- Consequently, it is extensively used in the desalting process (desalination of brackish water, demineralization of cheese whey).
- It cannot remove non-ionized solutes (sugars), bacteria, or suspended colloidal particles, which are instead separated using pressure-driven membrane processes like ultrafiltration or microfiltration.
Step 3: Final Answer:
Electrodialysis is extensively used in the desalting process, which corresponds to option (D).
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