Remediation

UV Advanced Oxidation for the Remediation of Contaminants in Water 

Contaminated Sources of Drinking Water

Drinking water sources we rely upon every day are increasingly at risk of chemical contamination. Many of these contaminants have been proven harmful or carcinogenic and must be treated and removed in order for the water to be considered usable.

These contaminants may come directly from human sources such as industrial manufacturing, agricultural run-off and wastewater discharge, or they may originate from natural sources, such as the taste and odor-causing chemicals in water generated by algae and bacteria blooms.

UV Applications for Remediation

  • 1,4-Dioxane Treatment
  • Pesticide Treatment
  • Treating Algal Toxins and Taste & Odor Compounds
  • Treating Other Environmental Contaminants
TrojanUVECT treating micropollutants at a drinking water plant in the Netherlands

UV Advanced Oxidation Breaks Down Contaminants in Water

The UV advanced oxidation process (also known as UV AOP) is an established technology for the remediation of contaminants in groundwater and surface water. Our systems have been installed around the world to treat a variety of contaminants.

Volatile Organic Compounds

  • 1,4-Dioxane
  • Trichloroethylene (TCE)
  • Tetrachloroethylene (PCE)

Pesticides

  • Metaldehyde
  • Atrazine
Taste and Odor Causing Compounds
  • 2-Methylisoborneol (MIB)
  • Geosmin

By-products

  • N-nitrosodimethylamine (NDMA)
Algal Toxins
  • Anatoxin
  • Microcystin

Explosives

  • Hexahydro-1,3,5-trinitro1,3,5-triazine (RDX)

Hazardous Substances

  • Cyanide



 TrojanUV Systems for Remediation

A photo of a TrojanUVFlex 200 Series chamber

TrojanUVFlexAOP

The TrojanUVFlex®AOP is our latest UV advanced oxidation solution for the treatment of contaminants. It’s cross-flow lamp orientation enhances treatment efficiency and provides built-in redundancy. A compact and modular chamber design allows for easy expandability and installation in even the smallest of spaces. 

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A photo of two TrojanUVPhox chambers stacked

TrojanUVPhox

Vertically stackable and modular, the TrojanUVPhox® allows for multiple chambers in series and the ability to expand without increasing footprint. It’s the industry-standard for UV advanced oxidation, currently installed at the world-renowned Ground Water Replenishment System in Orange County, California. 

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A photo of a TrojanUVSwiftECT chamber

TrojanUVSwiftECT

The TrojanUVSwift®ECT provides year-round treatment for seasonal taste & odor events.

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The UV Advanced Oxidation Process

 
 

UV AOP uses ultraviolet light, alone or in combination with an oxidant, to break down chemical contaminants in water.

A rendering depicting the UV advanced oxidation process (UV AOP)

  1. UV converts the oxidant (e.g., hydrogen peroxide) into highly reactive oxidizing radicals.

  2. The oxidizing radicals attack and decompose contaminants.

  3. At the same time, UV light treats the water. 

Effective Removal of 1,4-dioxane

Not all contaminants can be easily removed from water using processes like microfiltration, granular activated carbon or reverse osmosis. For contaminants such as 1,4-dioxane and certain nitrosamines, UV AOP is the only practical and proven solution.

Simultaneous Treatment

Our UV AOP systems can also perform treatment to obtain log reduction credits for target organism inactivation*. This is ideal for water providers needing to meet requirements of the Surface Water Treatment Rule, Long Term 2 (LT2) Enhanced Surface Water Treatment Rule, or the Groundwater Rule, in addition to their contaminant removal needs.

Elimination of Residuals

Many other treatment technologies merely transfer the contaminant from one phase to another (e.g. air stripping: from water to air) resulting in a potentially hazardous, contaminant-laden residual that requires further treatment or disposal.

Compact Footprint

UV AOP occurs instantaneously within the UV chamber, eliminating the need for the large concrete contact basins or steel pipes commonly used in conjunction with ozone. This allows UV advanced oxidation systems to be easily retrofitted into existing water treatment facilities.

Let’s Determine if UV AOP Makes Sense for Your Plant

Our on-site Environmental Containment Treatment laboratory, run by our renowned team of scientists and researchers, has analyzed thousands of water samples from around the world.

We measure characteristics of your water critical to UV AOP performance – such as UV transmittance, pH, nitrate ion concentration, and radical scavenging – to determine if the technology makes sense for your plant. Then, we can design a robust UV AOP system specifically for your unique treatment needs, guaranteed to meet your contaminant removal requirements.

Inactivation Claims

*Specific UV systems manufactured by Trojan Technologies have been validated through microbial testing. Through this testing, performance data has been generated for UV dose delivery to inactivate Escherichia coli (E. coli ), fecal coliform, Poliovirus, CryptosporidiumGiardia, and Adenovirus. For a detailed list of UV systems and target organisms, visit www.trojantechnologies.com/support/treatment-claims

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