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Ultraviolet (UV) Sterilizers | UV Disinfection Systems

Ultraviolet (UV) technology is a time-tested and proven method to effectively disinfect water. UV systems remove bacteria, virus, protozoa and all other pathogenic microorganisms without altering the water chemistry. This technology also does not use any chemicals and do not generate harmful by-products during and after the disinfection process.

KORGEN sources a wide range of residential, industrial and commercial UV (Ultraviolet) Disinfection Systems and UV sterilizers from reputed national and global manufacturers. We supply, install and service these modular UV systems (both POE and POU) in Chennai, Tamil Nadu and select cities across South India for diverse water purification and process applications.

Our standard product range starts from a compact 120 LPH purifier and goes up to 20000 LPH. We also supply high-volume customized UV Disinfection Systems built to specific requirements.

Our UV Disinfection Systems are easy to use, requires minimal supervision and maintenance. Improved safety, simple service needs, low maintenance costs, insensitivity to temperature/pH volatility and the absence of chemicals are some of the main benefits of using UV technology for water purification.

Our technical team analyses the water characteristics and the process or output quality requirements before deciding on the type, size and number of UV Lamps / modules required for the water purification process. Starting from the analysis of your water, KORGEN will guide you at every stage, in choosing the right UV System.

Post-installation, we also offer various types of after-sales service packages at very competitive rates to make sure that the UV Systems deliver optimal performance consistently.

Major Uses of UV Technology
i.	Drinking Water Disinfection
ii.	Process Water Disinfection
iii.	Waste Water Disinfection
iv.	Swimming Pool Disinfection
v.	TOC Reduction
vi.	Ozone Destruction in Water

Key Features and Benefits of UV Systems

Safe and effective disinfection technology without the use of chemicals

All known microorganisms are susceptible to UV rays

Rugged Construction and Corrosion Resistant electropolished MOC (SS 304, 316, 316L)

Does not alter the basic water chemistry

No known toxic or significant nontoxic by-products are generated during the disinfection process

Leaves no odour, taste or any other residual effects in the purified water

Compatible with all water treatment processes

Long-lasting and saves energy due to lesser power consumption

User-friendly and compact designs with smaller product footprint

High-quality UV-C Lamps, quartz sleeves, electronic ballasts and intensity monitors ensure consistent disinfection efficiency

Lower capital, operational and maintenance costs

Know more about UV Technology

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Technology and Process Description

UV - Technology and Process Description

Disinfection using ultraviolet (UV) rays is a reliable and safe process in which all microorganisms (bacteria / virus / cysts etc) are inactivated to make the water fit for drinking and other consumption purposes. Ultraviolet technology is a non-chemical approach to disinfection where nothing is added. This process is simple, inexpensive and requires very low maintenance.

Ultraviolet light is a natural component of sunlight. These rays are electromagnetic wavelengths of radiation which are just shorter than those of visible lights. Ultraviolet (UV) rays are part of the light spectrum classified into three wavelength ranges as given below.

UV-C	From 100 nanometers (nm) to 280 nm
UV-B	From 280 nm to 315 nm
UV-A	From 315 nm to 400 nms

UV Ultraviolet Technology Electromagnetic Spectrum Details

Out of these, UV-C is germicidal and hence it deactivates the DNA of bacteria, viruses and other pathogens and thus destroys their ability to multiply and cause disease. Specifically, UV-C light causes damage to the nucleic acid of microorganisms by forming covalent bonds between certain adjacent bases in the DNA. The formation of such bonds prevents the DNA from being unzipped for replication and the organism will be unable to reproduce.

Higher energy wavelengths of UV rays have the unique ability to destroy harmful microorganisms in water. UV light destroys these microorganisms by disrupting their genetic information (DNA) and rendering them harmless.

The efficacy of UV is directly proportional to the UV dose applied to the water. UV dose is the product of UV light intensity and exposure time (HRT) and is expressed in mJ/cm2. NSF international has established a UV dose of 30,000 mw-sec/cm2 as the minimum UV dose required to ensure a safe level of disinfection.

The dosage of ultraviolet is measured in microwatt seconds per square centimeter. The higher the microwatt, the higher the dosage, the longer the exposure time the higher the dosage. UV systems generally employs low pressure mercury vapour lamps. These lamps generate short wave ultraviolet in the region of 253.7 nanometers which is lethal to microorganisms.

In the UV disinfection process, the water after passing through Sediment Cartridge and Carbon Cartridge is sent into a disinfection unit (UV) for complete sterilization. UV Sterilizers are built on the germicidal property of UV Radiation at 2537 angstorm unit capable of destroying the DNA of bacteria, virus, algae, fungi and other microorganisms. These units are built with high efficiency UV lamps surrounded by quartz glass sleeves to isolate the bulbs from direct water contact. The quartz sleeves which are physically and chemically inert also ensure very high transmission of UV energy with lesser losses.

In hi-volume units, turbulence is created in the water flow to achieve full exposure to the UV rays.

UV systems, although complex, has no moving parts and requires minimum power to operate and is therefore economical. The life of the UV lamp is calculated based on the burning hours.

Since suspended particles present in the water tend to deflect the UV rays, the efficacy of the UV disinfection unit depends on the physical clarity of the water. Hence it is recommended to have effective Micron Filtration Units prior to the UV system.

UV systems will have to be used in water with ambient temperature. Depending on the usage and intended applications, UV systems can be supplied with multiple UV lamps in parallel or series.

General Applications of UV Disinfection Systems