Water purifiers have become a very serious need for the people. It is literally difficult for one to survive without water purifiers in such a polluted world of today. Water purifiers help in maintaining a healthy life by protecting people from several water-borne diseases. There are different types of water purifiers and one among them is the UV- water disinfection.
UV has the ability to control all sorts of bacteria. It is considered to be one of the effective technology used for water treatment.
How Does UV Technology Work?
Ultra Violet disinfection usually involves a UV lamp. The UV lamp is used to provide pure and safe drinking water. The UV light used in this process is a high powered UV termed as UV-C or germicidal UV. UV-C rays attack the pathogens and penetrate into their body. The DNA of the pathogenic organisms is modified in such a way that they cannot multiply and cannot cause diseases. UV treatment does not alter water chemically; nothing is being added except energy. The sterilized microorganisms are not removed from the water. These rays have the ability to inactivate 99.9% of the microorganisms. Unlike chemical disinfection, the organisms are unable to develop any immune mechanism against UV light (Source: Water Tiger).
Many features combine together to form the UV water disinfection system.
- Wavelength output of the lamp.
- The length of the lamp – when the lamp is mounted parallel to the direction of water flow, the exposure time is proportional to the length of the lamp.
- Design water flow rate – exposure time is inversely related to the linear flow rate.
- The diameter of the purification chamber – since the water itself absorbs UV energy, the delivered dosage diminishes logarithmically with the distance from the lamp.
The water initially passes through the UV lamp and then enters the gap between the placement of the germicidal lamp and the outer wall. The water which is free from radiation leaves out of the tank through the nozzle (Source: Harvest H2o)
UV water purification system produces germ-free potable water for human use.
It keeps the water used for food process free from all sorts of bacteria without the use of germicides or any other chemicals which in turn will not spoil the taste of food.
It is also cost effective, inexpensive. UV rays source bulb uses approximately 60 watts of power which quite equivalent to normally used a light bulb.
No matter how much money is spent on buying the best, no equipment or device will last until appropriate maintenance is done. The first and foremost rule are to follow the Manufacturers Manual. Besides, we have compiled the following.
Lamp Replacement | UV lamps are completely different from the normal fluorescent lamps. The intensity of the UV lamp reduces to about 60 percent after 1 year of usage. At this situation, the UV lamp needs to be changed.
Monitoring Performance | Regular checks should be carried out. Water should be tested for the presence of bacteria. Downstream of the UV unit should be checked thoroughly as there are chances for the presence of pathogenic microorganisms.
Cleaning | As water passes through the UV unit, minerals and other material in the water will get deposited on the quartz sleeve and other spaces which in turn will not allow the UV light to pass through the water properly. This issue can be solved by cleaning the layer at regular period of time. This cleaning process solely depends on the quality of water.
Monitoring UV penetration | UV light intensity meters available in the market indicates the penetration of UV light in the water. Low intensity indicates that the UV rays penetrated are low to tackle with the microorganisms. This will also indicate when the UV lamp should be changed or the cleaning process should be carried out.
Understand what is available in your market thoroughly and get yourself the best for your home.