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Product Introduction – Purified Water Products

Ultraviolet Unit (TOC - UV)

Overview 

A equipment that utilizes high-energy 185 nm ultraviolet (UV) light to irradiate water, directly oxidizing and decomposing organic matter (TOC) into Carbon dioxide (CO2) and water (H₂O), or oxidizing it into low molecular weight substances that are easily removed by subsequent polishing treatment units (such as EDI or mixed bed). It is primarily used for removing trace organic matter in UPW systems. 

 

Features

Efficient TOC decomposition: 185 nm UV light directly cleaves organic molecules and generates active free radicals (e.g., OH), enabling highly effective TOC removal.   
Physicochemical process: No or minimal chemicals (e.g., a small amount of hydrogen peroxide) are required, eliminating the risk of secondary pollution. 
Improvement of water purity: Effectively reduces the TOC content in ultrapure water and significantly increases produced water resistivity. 
Relatively simple maintenance: As the core component is UV lamp, maintenance primarily involves periodic lamp replacement. 
Continuous online treatment: It can be integrated into ultrapure water recycling systems for continuous TOC control. 

 

Usage

It is primarily used for the online removal and precise control of total organic carbon (TOC) in ultrapure water recycling systems, ensuring the final product water meets stringent standards. It is particularly critical for applications in: 
Semiconductor manufacturing: Water for chip cleaning and wafer manufacturing processes. 
Pharmaceuticals: Water for injection (WFI) systems. 
High - end display panel: Process water for TFT - LCD, OLED, etc. 
Precision analytical laboratories: Ultrapure water for analysis.