Here are a few maintenance tips to help you keep your UV water purifier functioning smoothly:. This is true if the UV lamp of a water purifier is turned on and off frequently.
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Your email address will not be published. Here are a few of the things worth knowing about UV water purification How does UV water purification work?
Benefits of UV water purification There are many benefits of choosing a water purifier with UV purification. Tags: best water purifier , best water purifier brand in india , best water purifier price in india , kutchina water purifier , water purifier. What is UV light? UV light is part of natural sunlight. It cannot be seen as UV light is between visible light and x-rays.
How does UV light kill microorganisms? Is UV light effective against all microorganisms? UV light is normally effective against all viruses, bacteria and protozoa. However, some microorganisms such as Cryptosporidium and Giardia have protective or thick cell walls that some low power UV light systems are not able to penetrate.
It is important to make sure the UV light disinfection systems are specifically designed to kill these microorganisms if necessary. Does UV light work in all water conditions?
UV light will only travel in a straight line so any shadow or obstruction will reduce its efficiency. Water that is not filtered can contain iron, manganese and other particles that can either absorb or scatter UV light reducing the effectiveness of the disinfection system. Microorganisms that are able to pass through protected by shadows created by dirt, debris or other microorganisms may be able to survive treatment. Should I filter my water before UV light disinfection? It is important to filter water before treatment with a UV light to make sure that all suspended particles are removed.
UV light is not a filter so microorganisms and suspended matter will not be removed from the treated water. What happens if the electricity fails? UV light disinfection systems require a continuous power supply to power the light bulb. If the power fails or falls below the correct operating level the UV light intensity will fail or fall and as a result the system will not be able to safely disinfect water.
The Department of Health recommends that UV light systems are interconnected to water pumps so that in the event of a power failure untreated water will not be supplied. Is disinfection maintained throughout the water supply system?
Commercial products are available for rinsing the unit to remove any film on the UV source. An overnight cleaning with a solution of 0. Some units have wipers to aid the cleaning process. UV systems are designed for continuous operation and should be shut down only if treatment is not needed for several days. A few minutes for lamp warm-up is needed before the system is used again following shut-down. In addition, the plumbing system of the house should be thoroughly flushed following a period of no use.
Whenever the system is serviced, the entire plumbing system should be disinfected with a chemical such as chlorine prior to relying on the UV system for disinfection.
UV lights gradually lose effectiveness with use; the lamp should be cleaned on a regular basis and replaced at least once a year. It is not uncommon for a new lamp to lose 20 percent of its intensity within the first hours of operation, although that intensity level is maintained for the next several thousand hours. As stated previously, units equipped with properly calibrated UV emission detectors alert the owner when the light intensity falls below a certain level.
If these organisms are present in the treated water, the lamp intensity should be checked, and the entire plumbing system should be disinfected with a chemical such as chlorine. UV is effective against bacteria and viruses; and may be effective against Giardia lamblia or Cryptosporidium if the system is custom designed to meet these disinfection requirements.
UV is an in-line, point-of-entry system that treats all the water used in the house. The capacities range from 0. Since bacteria may be shielded by particles in the water, pretreatment to remove turbidity may be required. There is also a limit to the number of bacteria that can be treated. Prefiltration is required to remove color, turbidity, and particles that shield microorganisms from the UV source. Water that contains high mineral levels can coat the lamp sleeve and reduce the treatment effectiveness.
Therefore, pretreatment with a water softener or phosphate injection system may be necessary to prevent build-up of minerals on the lamp. Table 3 lists the maximum levels of certain contaminants that are allowable for effective UV treatment. Installing an UV treatment system, or any other water disinfection system, is not a substitute for proper well design and construction. If you have a dug well as a supply source, replacing the well is probably a more satisfactory long-term option.
If a dug well or spring is your only supply option then look at all the treatment options before you decide what to do. Make sure you get advice from an expert! Recommended treatment process selection:. Make the necessary repairs and improvements to the system. I have provided some online links for water treatment systems, but I always recommend a preliminary water test.
Introduction Bacteria E. Introduction Methane. Services Search. Home Indoor Outdoor Services Search. This is a newly redesigned Water-Research. Get Tested. Recommended Tests Level 2 No items found. Level 3 No items found. Get Treatment. Recommended Treatments Short-Term No items found.
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