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Updated: Aug 1, 2026
11:14
Two-way Valorization of Blast Furnace Slag: Synthesis of Precipitated Calcium Carbonate and Zeolitic Heavy Metal Adsorbent
Published on: February 21, 2017
Scale and corrosion control with combined dolomite/calcite filter.
T Log1, G Simpson, H K Hanssen
1Enwa AS, Pindsleveien 4, Postbox 1241, 3205 Sandefjord, Norway. enquiries@enwa.co.uk
Summary
A fixed bed filter effectively managed boiler water quality by controlling pH, hardness, and alkalinity. This significantly reduced scale formation and corrosion in both hard and soft water systems.
Area of Science:
- Industrial Chemistry
- Water Treatment Technologies
Background:
- Boiler operation is critically affected by water quality, with hard water causing scale and soft water causing corrosion.
- Effective water treatment is essential for efficient and safe boiler performance.
Purpose of the Study:
- To evaluate the impact of a fixed bed filter on the scaling and corrosion properties of hard and soft boiler feed waters.
- To assess the filter's ability to control key water quality parameters.
Main Methods:
- A two-stream boiler test rig was employed for the study.
- The fixed bed filter's effect on water pH, hardness, and alkalinity was measured.
- Scale formation and corrosion levels were monitored in treated hard and soft waters.
Main Results:
- The fixed bed filter demonstrated effective control over water pH, hardness, and alkalinity for both water types.
- A significant reduction in scale formation was observed.
- Effective control of corrosion was achieved in the treated waters.
Conclusions:
- Fixed bed filtration is a viable method for improving boiler feed water quality.
- This technology mitigates both scaling and corrosion issues, enhancing boiler operational efficiency and longevity.
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