UV Treatment

CrossAfrica Water Solutions utilises UV light at the end of our point-of-entry micro-filtration system.

Ultraviolet water purification is the most effective method for disinfecting bacteria from the water. Ultraviolet (UV) rays penetrate harmful pathogens in your home’s water and destroy illness-causing microorganisms by attacking their genetic core (DNA). This is extremely efficient in eliminating their ability to reproduce. Disinfecting your water with ultraviolet light is exceptionably simple, effective and environmentally safe. UV systems destroy 99.99% of harmful microorganisms, without adding chemicals or changing your water’s taste or odour. UV water purification is usually used with other forms of filtration such as reverse osmosis systems or carbon block filters.

UV Purification > Chemical Disinfectant

UV systems are an effective means of water disinfection for residential point-of-entry use to help disinfect the entire home. UV systems are highly recommended to homeowners who suspect that E.coli, cryptosporidium, giardia or any other types of bacteria and viruses may be present in the water. It is not advised to use chlorine or other chemicals to disinfect water like private well owners, because of the toxic by-products they create. It is important to avoid drinking any water that is potentially contaminated with bacteria to protect yourself from water-borne bacterial diseases.

Ultraviolet purification advantages

  • Chemical-free: UV purification does not use any chemicals like chlorine, or leave any harmful by-products.
  • Taste and odour-free: UV does not add any chemical taste or odour to the water.
  • Extremely effective: One of the most effective ways to kill disease-causing microbes by destroying 99.99% of bacteria.
  • Requires very little energy: UV light uses about the same energy as it would to run a 60-watt light bulb.
  • Low-maintenance: This is a set-and-forget type of system – just change UV bulb annually.

Limitations in UV water systems

Ultraviolet purification itself is not enough to purify water down to drinking water purposes. This is because the UV radiation is only effective for treating bacteria and viruses. UV light does not work to eliminate contaminants such as chlorine, heavy metals and VOCs (volatile organic compounds). UV systems are often paired with reverse osmosis systems to provide a complete purification process for the safest drinking water.