Question

Which of the following method(s) is/are used for desalination of water?

• A. Reverse Osmosis
• B. Activated Sludge Process
• C. Incineration
• D. Distillation

Hint:

For desalination, reverse osmosis and distillation are common methods, whereas processes like activated sludge and incineration are used for wastewater and waste management.

Answer 1

The Correct Option is A, D

Desalination is the process of removing salt and other impurities from seawater to make it suitable for drinking and irrigation. Several methods are used for desalination:

Step 1: Reverse Osmosis is a widely used method for desalination. It involves passing seawater through a semi-permeable membrane that removes salt and other impurities.

Step 2: Distillation is another method used for desalination. In this process, seawater is heated to produce steam, which is then condensed to remove salt and other impurities.

Step 3: The Activated Sludge Process is a wastewater treatment method and is not used for desalination.

Step 4: Incineration is a waste disposal method, not related to desalination.

Thus, the correct answers are (A) Reverse Osmosis and (D) Distillation.