Question

Q. Sterilization of water can be done by using.
a) oxygen
b) ozone
c) caustic soda
d) hydrogen peroxide​

Answer 1

Answer:

Sterilization of water can be done by using ozone.

Explanation:

• Ozone is a powerful oxidizing agent.
• Ozone oxidizes all the  organic material present in the membranes of microorganisms which contaminates the water.
• Water that has been treated with ozone gas is referred as Ozonated water.
• Benefits of it is in both clinical and industrial spaces, it  prevents cancer and  supports  dental health and preserves food safety.
• Ozonation is a chemical  treatment technique in which infusion of ozone into water to oxidize the organic contamination.
• Ozonation elevates the dissolved oxygen (DO) concentration of the effluent.
• The increase in DO can eliminate the need for reaeration and also raise the level of DO in the receiving stream.

Concept of DO:

• DO is the measure of amount of oxygen dissolved in a water body .
• It is affected by the microorganisms present in a water body as they consume the dissolved oxygen from water for respiration.

• The amount of dissolved oxygen is necessary to measure as it indicates the contamination of water.

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