legionella risks
|

Does UV kill everything?

No, it turns out you can’t kill plastic. I’ve actually had a good look into it and if it has DNA, exposure to UV light will mess it up. I choose my words carefully, I thought that going into thymine dimmer reactions and excision might confuse us all (That proves I’ve been researching).

I’ll explain, not just leave it at that. Some things are more resistant to UV exposure to others. This has nothing to do with its DNA, this will react the same way to UV exposure in every instance. More so, the structure that surrounds the DNA has different properties in every instance. Examples at both ends of the spectrum are:

E.coli, while slightly resistant to atmospheric levels of UV, the unicellular structure of E.coli does little to protect it from even a slight over exposure to UV. Receiving a standard dosage from a water based UV unit will decimate an E.coli presence. Good for us as it’s one of the more well known waterborne bacteria.

Endospores on the other hand are the opposite. Endospore is the name for the state that certain bacteria hibernate into, not the bacteria itself. When in this state the bacteria have hunkered down for the long run, waiting for favourable conditions. Endospores thick outer layers are resistant to temperature, chemicals and yes, UV radiation. I found out these can survive in boiling water for hours, as well as being able to shrug off 99% of your 99.99% kitchen cleaning products. An impressive evolution if ever there was one. Luckily, they will be picked up by simple water test and while resistant, the thick wall is made of a mesh of proteins that are broken down with UV. While these would need over 10 minutes of contact time with a concentrated bleach solution (According to Wikipedia ^^), an upgraded UV setup will destroy them to the same standard in a fraction of the time.

You might be interested in this articles

Find our latest articles and useful information.

How important is Reverse Osmosis when it comes to drinking water?
25.03.2022

How important is Reverse Osmosis when it comes to drinking water?

In many countries around the world, tap water is dangerous to drink due to the composition of the water. For these countries, bottled water is…

What is involved when treating wastewater with UV?
24.03.2022

What is involved when treating wastewater with UV?

Did you know, that in one ml of sewage there are approximately 100,000 – 1 million micro-organisms within that liquid? That’s just one millilitre. Imagine…

4 Reasons Why You Should Service Your UV Equipment
20.12.2019

4 Reasons Why You Should Service Your UV Equipment

To keep your UV equipment working as expected, we recommend that you have your equipment serviced by a professional engineer. Having your equipment serviced provides…

A Guide to using UV Water Treatment in your home
25.11.2019

A Guide to using UV Water Treatment in your home

So, you have made the investment in your UV Home water treatment system, and once the system is installed it should work perfectly every time…