Limit for drinking water: 0 KTJ / 100 ml
- Extreme amounts are accompanied by turbidity, odor and taste
- In normal quantities, they are imperceptible
- Causes nausea, diarrhea and vomiting
Removal of coliform bacteria
- Principle of water disinfection by chemicals or UV radiation
Coliform bacteria, the most important of which is Escherichia coli, inhabit the intestines of humans and other animals. From there, it can get through feces into water. Coliform bacteria are the so-called indicator of fecal contamination. Not only are they themselves harmful, they can also be accompanied by other harmful substances and microorganisms.
Disinfectants approved for this use serve to dispose of bacteria. When the application procedure is followed, the bacteria are reliably destroyed and the water quality (odor, taste, effect on health) is not adversely affected. The advantage of chemical disinfection is that its function is controlled by the flow of water and disinfectant is carried by the water through pipelines, so it also eliminates the bacteria settled there.
Disinfection with a UV lamp is not controlled by the water meter, the lamp is constantly lit and is usually replaced after a year. The UV lamp kills only the microorganisms that flow through it with the water. If any bacteria are in the pipelines behind the lamp, UV disinfection has no effect on them. The advantage of the UV lamp is that there are chemicals dosed into the water and it does not change the waters composition, which may be important for some users.
