UV light

 

This method of treatment utilizes short-wave radiation to attack microorganisms that could be residing in the water. The UV light effectively destroys or alters nucleic acids, so their DNA is disrupted preventing them from performing certain vital cellular functions. This is a favored method as it leaves no residue in the water.

 

Chlorination

  When chlorine is added to water it acts as a disinfectant. It can be added as sodium chloride (NaCl) and will dissolve in water forming both hypochlorus acid and hydrochloric acid. Chlorine acts as a strong oxidizing agent, and effectively kills organisms by the oxidation of organic molecules. The products of the reaction neutrally charged and can easily penetrate the negatively charged surface of pathogens. Further the chlorine breaks down the lipid cell wall and interact with intracellular components. This Denatures the proteins and enzymes that are present rendering them non-functional. (Citation needed)

 

Cl2 + H2O  <------> HOCl + HCL

 

 

 

 

 

 

 

 

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