TOC in Water Treatment

TOC is a measurement of the number of organic compounds in water. A TOC measurement provides vital information to industries or operators by indicating if their process water is to a suitable quality.

Ultrapure water is a requirement in pharmaceutical, semiconductor and microelectronic industries. TOC needs to be reduced in these applications to prevent jeopardisation of product quality. In other applications such as in wastewater or stormwater treatment, TOC reduction is required to improve the water quality to a safe level suitable for discharge or re-use.

How TOC Reduction is Achieved with UV

UV-Guard utilises ozone producing UV lamps for the reduction of TOC in water. These lamps emit a wavelength of 185nm which results in the formation of free radicals. These free radicals oxidise organics in the water to form Carbon Dioxide (CO2) and Water (H2O).

Design of TOC Reducing UV Treatment Systems

UV-Guard has data spanning a number of years detailing the impact of ozone producing UV lamps and the required UV dose to achieve a measurable reduction. As this is a specialist application, it is advised that each project is discussed with a UV-Guard engineer. As with other specialist UV applications, a greater UV dose is commonly required to reduce TOC than that of drinking water disinfection.

January 30, 2019


TOC Reduction using
Ozone Producing UV Light
UV water treatment systems utilising Ozone producing UV lamps are an efficient solution in the reduction of Total Organic Carbon (TOC) in ultrapure and other water applications.

TOC Reduction using Ozone Producing UV Light

January 16, 2019


Chlorine and
Chloramine Destruction
UV treatment is a proven solution in the removal of free chlorine and destruction of chloramines (combined chlorine).

Chlorine and Chloramine Destruction

January 16, 2019


Ozone Destruction
using UV Treatment
UV treatment is an effective, safe and sustainable solution in the destruction of residual Ozone in a variety applications.

Ozone Destruction using UV Treatment

July 13, 2017


UV Water Disinfection
for Wastewater Applications
For large-scale wastewater disinfection operations, or small scale wastewater systems, UV treatment is a safe, environmentally-friendly, and cost-effective method. More and more wastewater treatment plants are adopting this method over other, chemical-based disinfection methods, such as chlorine gas.

UV Water disinfection for Wastewater Treatment

July 13, 2017

UV Water Disinfection
for Warm Water and
Legionella Treatment
Warm water is a breeding ground for Legionella bacteria. UV-C light will inactivate or outright destroy this pathogen when exposed.

UV Water Disinfection for Warm Water, Legionella Treatment

July 13, 2017


UV Water Disinfection
for Stormwater Treatment
UV stormwater treatment is an effective disinfection method and allows the safe re-use of this precious resource.

UV Water Disinfection for Stormwater Treatment

July 13, 2017


UV Water Disinfection
for Rainwater Treatment
Rainwater harvesting is a sustainable option for the environmentally conscious or for areas that are not connected to town water supplies.

UV Water Disinfection for Rainwater Treatment

July 13, 2017


UV Water Disinfection
for Drinking Water Treatment
UV disinfection for drinking water treatment has been acknowledged around the world as a safe, effective, sustainable and inexpensive method of providing potable water.

UV Water Disinfection for Drinking Water Treatment

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