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Boiler Water Treatment - Resolving Scale & Hardness Problems

Boiler Water Treatment - Resolving Scale & Hardness Problems

Continuing our look at the problems affecting steam boilers and how boiler water treatment problems can be managed correctly we look at issues that surround the accumulation of hardness salts and how to prevent scale accumulation in boiler water systems.

We examine the problems caused by the accumulation of scale, hardness salts and how to prevent them using equipment and specialist antiscalants and scale inhibitors.

Preventing scale and hardness salts

Hardness salts are the cause of scale inside a boiler; if they are not prevented or removed regularly they will cause localised overheating. This can lead to tube failure (explosion risk) and/or a reduction in the heat transfer properties of the transfer surfaces. This in turn leads to reduced efficiency and increased energy costs.

Hardness salts can either be removed before they enter the boiler system, using a water softener, reverse osmosis plant or de-alkalisation unit, or they can be treated inside the boiler itself.

Scale prevention

It is normally more cost effective to use equipment to remove hardness salts when the water hardness is high, however you should always complete your own calculations because even for soft waters it may be beneficial to use a water softener when considering blowdown requirements.

Phosphates and carbonates

Once inside a boiler the hardness salts can be treated with phosphates or carbonates. Phosphates are preferred as carbonates can lead to an increase in the levels of carbon dioxide in the steam, and hence an increased corrosion risk.


Together with phosphates, polymers should also be used to prevent salts precipitating and eventually 'baking-on' to surfaces.

Boiler treatment chemicals

Accepta have a number of highly effective, technically advanced chemicals for the treatment of boiler water. They include antiscalant formulations developed specifically for the treatment of boiler water, and corrosion inhibitors which help to prevent corrosion issues.

White label manufacturing services

Accepta's white label manufacturing services offer customers the opportunity of having our high quality, manufactured products branded as their own. All Accepta products can be re-branded with customer company name, logo, contact details, and more included on each consignment and, if required delivered direct to a site of thier choice with their own delivery paperwork.

If you would like to learn more about our specialist white label manufacturing services please contact us.

World Class Expertise

Accepta work with industry worldwide delivering practical, cost effective solutions to resolve complex problems. If you require technical assistance, or information about our water treatment chemicals and other speciality products, please contact our dedicated technical support team on:

+44 (0) 845 519 89 90 or complete our Technical Support form.

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Custom Chemical Manufacturing

Accepta offer custom chemical manufacturing, specialist toll blending and white label production services for our own water treatment chemicals and client specific formulations to UK and international customers.

To discover how you could benefit from our environmentally sensitive, quality driven chemical manufacturing capabilities please call us on +44 (0) 161 877 2334 or contact us.

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Accepta's innovative, quality driven customer focused business model creates exciting global supply chain and distributor opportunities for established and ambitious businesses currently active within the water treatment, wastewater treatment and environmental services sectors around the world.

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