Toc Reduction

Home » Application » Toc Reduction
TOC Reduction Using UV Technology

Reduction of Total Oxidizable Carbons (TOC’s) in water is achieved via three types of reactions initiated by UV that work to destroy and/or remove oxidizable carbons.

The primary UV/chemical reaction is an oxidation process that begins when high-energy 185 nm UV dissociates water molecules, thereby creating hydroxyls (free OH- radicals). The hydroxyls created by UV are highly reactive and readily combine with other molecules, such as the hydrocarbon molecules that make-up TOC’s. When hydroxyls combine with the TOC hydrocarbons they form water and carbon dioxide molecules; TOC’s are destroyed and the oxidation is complete.

The second type of UV reaction that works to remove TOC’s is one whereby the ultraviolet photons dissociate organic molecules directly. This result is TOC removal/ TOC reduction¬†by means of destruction. A third UV reaction occurs when deionization is added downstream of a UV reactor. Ultraviolet energy will ionize TOC’s, which allows for subsequent removal by a deionization system.

One of the challenges of using ultraviolet energy for TOC reduction is that 185 nm UV does not transmit as well through water as does 254 nm UV. Therefore, a very high UV dose is required for TOC reduction as compared to standard disinfection. As a thumb rule, a minimum UV dose of 1500 J/m2 is required for TOC reduction.

A side benefit of using UV for TOC reduction is that the TOC lamps will generate significant levels of 254 nm output and consequently provide high levels of microbial reduction (disinfection), in addition to the TOC reduction.

Related Markets

Pharmaceutical

Pharmaceutical

Pharmaceutical and healthcare products require production facilities of the utmost quality. Water used for product  Read More

Cosmetics

Cosmetics

Cosmetics, skincare and baby care products have become a huge industry today. Cosmetic companies are required by  Read More

Related Products

HiFlo series (HF)>

HiFlo series (HF)

High powered UV systems designed for higher flow rates across applications.

....  Read More

APi UV Series>

APi UV Series

UV Systems for critical process water applications across food, beverage, pharma and paint industrie....  Read More

BioPure UV series>

BioPure UV series

The 1st choice of the pharma & bio-pharma industry, Biopure UV meets stringent standards
Read More

Ecostream UV>

Ecostream UV

High performance economically priced UV systems with streamlined design for the disinfection of drin....  Read More

Copyright ¬© 2015 Alfaa UV. All Rights Reserved   |   Designed by Capsicum Mediaworks
We Support
Water Quality association Made In India Swachh Bharat