Potable Water Disinfection

Potable water is collected from natural resources like canals, rivers, lakes or aquefiers, processed to remove contaminants in drinking water before being stored and delivered.

Disinfection of drinking water is necessary to remove any microbial contaminants like bacteria, viruses, protozoa, spores, etc. Failure to inactivate microbial contaminants from potable water can lead to Cryptosporidium outbreaks, Giardia outbreaks, cases like recent Nigeria Fowlerii infections, leading to propagation of waterborne diseases.

Drinking water disinfection processes can be divided into

  • Chemical disinfection (e.g. Chlorine, Ozone)
  • Non-Chemical disinfection viz: Ultraviolet disinfection of drinking water

Chemical Disinfection of Potable water

Oxidizing chemicals like chlorine and Ozone oxidize the cells of microorganisms and kill them. While chlorine disinfection of potable water has been used for almost a century, if suffers from several limitations.