Disinfecting Drinking Water – Chlorination And Chlorine Testing

Chemical disinfection is arguably one of the most important stages of the drinking water treatment process, as it ensures any harmful microorganisms are not present in the drinking water. Chemical disinfection also has the advantage of providing a residual to ensure any microorganisms which enter the water whilst in the distribution network are killed. This is something other forms of disinfection such as Ozone or UV light cannot achieve.

Specifically looking at chemical disinfection, chlorine is one of the most popular disinfectant options. Chlorination can be done using multiple chlorine-based chemicals including chlorine gas, calcium hypochlorite or sodium hypochlorite. Chlorination is often chosen over other chemical disinfectant options as it is a very effective disinfectant and available at a lower cost than some other chemicals.