Did You Know That a UV System Can Remove Free Chlorine?

What is the Role of Chlorine in Water Treatment?

Free chlorine is added to water through gas or liquid chlorination using sodium or calcium hypochlorite. This process eliminates bacteria that may be present in the water. While chlorine effectively eliminates harmful microorganisms, it also risks the membranes used in reverse osmosis (RO) and electro-deionization (EDI) systems. These membranes are intolerant to chlorine, and high chemical levels can harm them.

The Advantages of Nuvonic UV Dichlorination System

Hanovia UV, now called Nuvonic UV, has designed systems specifically for the food and beverage and pharmaceutical industries. Their objective is to protect the RO and EDI membranes from chlorine damage. These systems provide a chemical-free solution for removing free chlorine, offering several advantages over traditional methods, such as activated carbon filters (ACF) and sodium metabisulphite (SMB).

Benefits of Nuvonic UV Dichlorination System:

• Minimal bacterial contamination and biofilm formation. By eliminating free chlorine, the system helps prevent the growth of bacteria and biofilm in the water treatment process, thereby maintaining the purity and quality of the water.
• Requires minimal operator input or maintenance. The Nuvonic UV Dichlorination System requires very little operator input or care. This makes it a highly convenient and cost-effective solution for removing free chlorine. The system is easy to use and maintain, which reduces the costs associated with water treatment processes.
• Chemical-free, unlike other methods of eliminating free chlorine, such as carbon filters and sodium metabisulphite. This system uses no chemicals, making it a safe and sustainable solution.
• No water wastage: The system is highly effective and only uses the necessary amount of water to remove the free chlorine. It is also cost-effective.
• Continuous monitoring of UV lamp performance. The process helps lower the frequency of cleaning and sanitizing and supports the reduction of downtime. Another benefit is the reduction of running costs of the water treatment process.
• Compact footprint: The system is space-saving, which makes it an excellent solution for water treatment in areas with limited space.

How the Nuvonic UV Dichlorination System Works

Nuvonic UV systems for dichlorination use medium-pressure UV lamps, which provide high-intensity UV light at 200 to 400nm wavelengths, ideal for destroying free chlorine. The applied UV dose is much higher than that for standard disinfection. As a result, the system can remove free chlorine and disinfect microorganisms at the same time. Below you may observe the UV dichlorination equations for free chlorine (hypochlorous acid (HOCl) and hypochlorite ion (OCl-)):

The Importance of Protecting RO and EDI Membranes

The Nuvonic UV Dichlorination system helps customers protect their RO and EDI membranes. The benefits include reduced bacteria build-up, low frequency of system downtime, and optimized running costs.

Conclusion

Removing free chlorine is essential in water treatment to protect the membranes used in reverse osmosis and electro-deionization systems. The Nuvonic UV dichlorination systems provide a chemical-free solution for removing free chlorine. At the same time, it offers numerous benefits, such as reduced bacterial contamination, minimal operator input, and a compact footprint.

Nuvonic
Date 12/08/2023