Is it true that, because UV light does not leave any antimicrobial residues in the water, microbial growth in the water can occur upon storage of the water?
Much like reverse osmosis, or boiling water, UV treatment does not leave a residual chemical in the water that will kill pathogens that are newly introduced after treatment. However, such reintroduction of pathogens in water provided through WaterHealth Centres and Water Stores is quite unlikely, owing to the narrow-mouthed storage containers in those facilities. Inadequate UV doses (delivered by some poorly designed UV treatment systems) can leave pathogens injured but not destroyed and, in those cases, some pathogens have been shown to recover from the injuries. However, UV Waterworks provides an overwhelmingly large UV dose three times the normal dose required to disinfect water. Therefore, even under the best nurturing conditions, and after repeated testing, we have been unable to revive any pathogens after they received the UV dose delivered through UV Waterworks.
Related Questions
- Is it true that, because UV light does not leave any antimicrobial residues in the water, microbial growth in the water can occur upon storage of the water?
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