Disinfection

Disinfectants are used to kill any remaining microorganisms in the water; it is an important process of water treatment as it can prevent pathogenic microorganisms from causing human disease. There are many ways to disinfect swimming pool water:

• Chlorine disinfection – Chlorine is capable of killing many microorganisms, but when it reacts with substances that may be present in the water, dangerous carcinogenic chemicals may be formed. This problem can be overcome by using chlorine dioxide which is effective at low concentrations.

• Ozone disinfection – This type of disinfection works by using oxygen atoms to destroy particles through oxidisation. This is an effective method to kill microorganisms and is not harmful to human health.

• UV-radiation – This type of disinfection is growing in popularity. It is more natural in its way of killing microorganisms as it uses UV rays to kill germs.