Question

Ozone is spread in the swimming pool because

• A. it acts as disinfectant
• B. to absorbs UV radiations
• C. ozone is easily available from $O_2$
• D. all of the above

Answer 1

Answer: (A)

Another common sterilising treatment for swimming pools other than chlorination is ozone treatment. Ozone has several advantages over chlorine in that it is an effective bactericide and it is also effective against viruses. Ozone oxidises organic matter and leaves the pool water with excellent clarity. Ozone does, however, have a short life in solution and is toxic and aggressive. As ozone does not remain in water as 'residual' ozone it is necessary, additionally, to chlorinate to provide residual protection in the water.