UV Disinfection for Municipal Applications

Inactivate pathogens, remove contaminants, meet sustainability objectives, and more!

UV is a proven, safe, and reliable method of disinfection for municipal drinking water, wastewater, and reuse water. The highly efficient and sustainable process does not involve the use of added chemicals and reduces the risk of disinfection by-products by lowering chemical disinfection requirements. It is effective as both a primary and secondary barrier disinfectant. UV is also widely used as part of a multi-barrier treatment strategy, used as the primary disinfectant, followed by the addition of residual chlorine to protect the treated water throughout the distribution network.

What is ultraviolet light?

Ultraviolet (UV) light is energy within the electromagnetic spectrum that has shorter wavelengths than that which are visible to the human eye. UV light is a range of electromagnetic waves from 100 to 400 nanometers (between x-ray and visible light). The division of UV light is classified as Vacuum UV (100–200 nm), UV-C (200–280 nm), UV-B (280–315 nm) and UV-A (315–400 nm). The energy waves provided in the UV-C spectrum demonstrate germicidal efficiencies that provide highly effective disinfection.

How UV disinfection works

UV light provides effective inactivation of microorganisms such as bacteria, viruses, molds and other pathogens without the use of chemicals. UV light works by causing damage to the DNA or RNA found in all living species. Once the DNA becomes damaged, or dimerized, organisms, such as Cryptosporidium or E. Coli, are unable to carry out the routine cell functions of respiration, the assimilation of food and replication. Once the cell is rendered non-viable the organism quickly dies.

Advantages of UV disinfection

for Municipal Drinking Water

• Proven solution against microorganisms such as cryptosporidium and giardia
• Safe, low-risk technology and easy to operate
• Easy to install and retrofit into existing plants
• Highly efficient technology reduces CAPEX
• Simple and low maintenance technology reduces OPEX
• Independent 3rd party validated performance to US EPA UVDGM and NSF61

for Municipal Wastewater and Reuse

• Simple to install, easy to operate technology
• Enhanced safety features and reduced maintenance requirements
• Validated to USEPA UVDGM
• Validated to the 2003 & 2012 NWRI Reuse Guidelines
• Applications include disinfection, photolysis, and advanced oxidation

Evoqua maintains a strong commitment to solve the water treatment challenges faced by customers, by offering a wide range of integrated UV solutions to suit any municipal application. ETS-UV™ disinfection systems are highly efficient, easy to maintain, and offer a flexible design with a small footprint. Our years of experience and in-depth expertise are at the core of our success. With our UV systems, your operation can reap the benefits of:

Chemical-free disinfection, with 

Compact, and compliant solutions, while

Reducing OPEX and CAPEX