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What are oxygen scavengers and how do they help boiler water treatment?

4 March 2025
A modern fire steam tube boiler in a factory.

Many industrial facilities rely on boilers to generate steam, whether to power equipment, provide heating or help with production processes. Treating the water in boilers is important as it prevents rust, corrosion and scale build-up inside the metal components and ensures that heat is transferred efficiently.

Untreated boiler water can ultimately affect output and raise operating expenses. Therefore, to guarantee the durability, effectiveness, and safety of these systems, effective boiler water treatment is vital. Using oxygen scavengers is an important part of the water treatment process. 

Blue Reef Water Solutions is a leading South African water treatment company that offers speciality chemicals and outsourced services for a range of industries. We create bespoke chemicals for boiler water treatment, including oxygen scavengers, to help our customers maintain production efficiency and the state of their boiler equipment.

How oxygen scavengers work

Boilers are susceptible to limescale, corrosion, rust and a number of other issues, such as suspended solids that can lower heat transfer efficiency. Dissolved gases, like carbon dioxide and oxygen, encourage corrosion and rust. These problems can cause tube failures, reduced steam production, and disastrous boiler explosions if they are not addressed. 

One of the main causes of boiler system corrosion is dissolved oxygen. When oxygen combines with the boiler’s metal surfaces, metal oxides – also referred to as rust – are created. The boiler’s structure is weakened by this corrosion, which also lowers heat transfer efficiency and may eventually cause leaks and failures. 

Oxygen scavengers are added to boiler water to eliminate dissolved oxygen by changing it into other, less dangerous compounds through chemical reactions. By successfully eliminating oxygen from the water, the reactions stop the water from interacting with the boiler metal. 

The main aim is to lower the dissolved oxygen content to a point where corrosion is no longer a serious risk. Temperature, pH, and the presence of other compounds in the water all influence the effect of oxygen scavengers. These reactions typically take place more quickly at higher temperatures and at the correct pH level

Bespoke boiler water treatment chemicals

Blue Reef has committed substantial resources to research and development (R&D) for all of its products, including oxygen scavengers. We can create custom water treatment chemicals to meet the unique requirements of different industries. All of our chemicals have been developed by our team of knowledgeable chemists and engineers. 

Bespoke oxygen scavengers are guaranteed to minimise corrosion, rust and scale formation. We can also create these chemicals in accordance with environmental best practices to ensure there are no harmful byproducts or risks to the environment when the water is discharged.

Our custom boiler water treatment solutions take into account the unique operational parameters of every boiler system, such as temperature, pressure, water quality, and the materials used in the boiler system. We work closely with our customers to fully understand their needs and create solutions that maximise their results. 

Blue Reef is a trustworthy producer and distributor of chemicals for water purification, catering to both domestic and foreign customers. We are a reliable partner for businesses looking for efficient and environmentally friendly water treatment solutions because of our dedication to innovation, quality, and customer service. Working with us gives you access to world-class chemicals as well as knowledgeable technical support and direction. For more information about our water treatment chemicals, please get in touch with us today. 

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Blue Reef Water Solutions is a leading water treatment solutions and engineering company that services various companies in food & beverage, agriculture, mining, industrial manufacturing and more. We also offer mineral separation and water treatment for industrial usage and human consumption.

We are a Level 2 B-BBEE manufacturer and supplier and fall under the ownership structure of Deneb Investments Limited. For more information on our products, contact enquiries@bluereef.co.za or phone +27 31 910 7500. Follow us on LinkedIn and Instagram for our latest news and industry insights.

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