Chlorine & Chloramines Reduction

While the addition of chloramine to municipal water may help control microorganism levels, it has undesirable effects, including generating by-products and causing changes in water chemistry.

Typical chlorine and chloramines treatment methods include carbon beds or chemical injections. However, carbon beds are excellent breeding grounds for bacteria to thrive and proliferate, and the addition of chemicals such as metabisulfite involve removing one chemical with another and isn't always a viable or desirable solution.

Issues caused by monochloramine in water

  • Chloramines have corrosive properties that can damage metal pipes.
  • Exposure to chloramines will degrade rubber over time. O-rings, gaskets, and seals will all be broken down by the chloramines.
  • Chloramines still leave water with an undesirable metallic or chemical tang. From brewing beer to brewing coffee, chloramines will offset the flavor profile of any beverage into which it is introduced.

UV technology for monochloramine reduction

Ultraviolet (UV) technology is a highly effective method of reducing chloramines in water. UV is a versatile, reliable approach to address numerous requirements in industrial water applications, including chloramine reduction. Studies have demonstrated conclusively that free chlorine residuals or chloramine residuals up to 2.0 ppm can be successfully reduced by the application of UV light.

UV technology for chlorine and monochloramine reduction

Trojan Technologies™ pioneered the technology of chloramine reduction utilizing UV light in the pre-membrane filtration or RO make-up water stream.

Let our experts help determine which form of monochloromine reduction is right for you.

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Aquafine™ Monochloramine Reduction Solutions

Aquafine, Trojan Technologies’ brand of industrial UV water treatment systems, offers a portfolio of robust and flexible UV systems with advanced technology designed to meet the stringent requirements of Pharmaceutical, Food & Beverage, Microelectronics, and other industrial markets.

OptiVenn: State-of-the-art UV series for industrial water treatment

The OptiVenn Series is a family of UV systems with advanced technology for applications in the pharmaceutical, food & beverage, microelectronics and other industrial markets.

The OptiVenn Series is used to break down trace chemicals; ozone, chlorine, and total organic carbon, and inactivate E.coli and fecal coliform.


Avant: Advanced UV treatment system for ultrapure water applications

Avant’s innovation and best in-class components reduce the total cost of ownership and drastically simplify operation and maintenance. Avant is the ideal solution for ultrapure water (UPW) plants in need of revolutionary UV technology.


Frequently Asked Questions

Chloramination is the process of adding chloramines – a group of chemical compounds that contain chlorine and ammonia – to drinking water for microbial inactivation.

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Read the Monochloramine Reduction Application Note


Monochloramine Application Note