How does Ultraviolet (UV) Disinfection/Water Treatment Work?

Quinn Tran • December 1, 2023

UV treatment has proven to be a reliable solution, employing advanced technology to neutralize microorganisms and provide chemical-free water treatment.

Well water, while often pristine, can detect unseen threats in the form of bacteria, viruses, and protozoa. UV treatment addresses these concerns by utilizing the power of ultraviolet light to eradicate potential contaminants. Let's get into the detail of how UV treatment works within the context of well water systems in Ontario.


man drinking water

What does UV Disinfection remove?

An ultraviolet (UV) water purifier exposes living organisms, including bacteria, viruses, and cysts like Cryptosporidium and Giardia, to germicidal ultraviolet wavelengths. The energy from UV radiation disrupts the DNA of pathogenic microorganisms, preventing them from reproducing and, in turn, curbing the spread of waterborne diseases.


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UV Treatment: A Closer Look


1. UV Lamp as the Core Component:

At the heart of a UV water treatment system lies the UV lamp. Emitting ultraviolet light at a specific wavelength, typically around 254 nanometers (nm), this component plays a pivotal role in disrupting the DNA or RNA of microorganisms. This wavelength proves highly effective at rendering these pathogens incapable of reproducing or causing harm.
UV lamps are powered by mercury vapour, which is introduced into the lamp in the form of small beads. These beads contain the mercury vapour that fuels the lamp. On occasion, you might observe these beads rolling around inside the lamp.


2. Water Flow Through UV Chamber:

Well water, on its journey from the source to our taps, passes through a chamber housing the UV lamp. This strategic placement ensures that every drop of water is exposed to the purifying UV light.

3. Microorganism Inactivation:

When microorganisms encounter the UV light, the energy emitted damages their genetic material. This damage, in turn, prevents the microorganisms from reproducing, effectively neutralizing any potential health threats. This step is crucial for ensuring the safety of the water supply.

4. Chemical-Free Process:

A significant advantage of UV treatment is its commitment to a chemical-free process. Unlike some traditional water treatment methods, UV treatment introduces no additional substances to the water. This feature is particularly valuable for those who prioritize chemical-free water treatment solutions.

5. Continuous Monitoring:

To guarantee the ongoing effectiveness of the UV treatment system, it often includes a sensor to monitor the intensity of the UV light. This proactive monitoring ensures that the UV lamp is operating optimally, providing a sufficient dosage to eliminate microorganisms. In the event of a decrease in UV intensity, the system may trigger an alarm or shut down to prevent the distribution of inadequately treated water.

6. Maintenance for Longevity:

Regular maintenance is essential for sustaining the system's effectiveness. Tasks such as cleaning the quartz sleeve around the lamp and replacing the lamp itself, typically after a specific number of operating hours or annually, contribute to the longevity of the UV treatment system.


Is UV necessary for every Water System setup?

While UV purification isn't a prerequisite for a water filter, a water filter becomes a crucial precursor to a UV system in well water treatment set up. UV systems operate most efficiently when the water they treat is clear, underscoring the necessity of a pre-filter with at least a five-micron pre-filter. This pre-filter serves a vital role in preventing living organisms from finding refuge behind loose particles in the water.

Quinn Water Systems recognizes the importance of pre filtration, offering versatile solutions for various water sources. Depending on your water supply, you can opt for a sediment filter to remove dirt and debris, especially relevant for well water. Alternatively, if dealing with iron issues, a water softener can serve as an effective pre filtration step.

 As water travel through the carefully designed filtration stages, the UV system ensures that any remaining microorganisms are neutralized, guaranteeing a safe and clean water supply for your household.


UV Disinfection

Conclusion


UV treatment, when employed in well water treatment, proves particularly effective for disinfection. It complements effectively with other treatment methods, such as water filtration, water softener addressing a spectrum of well water quality issues. In conclusion, when it comes to well water treatment in Ontario, UV Water Disinfection stands out as a reliable and chemical-free solution. With its use of UV light, it ensures your well water remains clean, providing an added layer of protection for your family against bacteria and viruses.

Ask Us about UV systems services

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