Cabinets for biofilters that eliminate odours and reduce sulphur emissions from industry
Hybridfilter
BioMax2500 ensures effective H₂S reduction
Customer
Herning Water
Industry
Hybridfiltre
As part of a major refurbishment, Struer Klejn Smedje and Herning Vand needed to establish a new and more efficient solution for treating process air from the plant’s pump sumps. The existing setup was both space-consuming and required ongoing maintenance, creating a need for a more reliable and compact technology.
Compact and reliable hybrid filter solution for Herning Vand
The solution selected was a BioMax2500—supplied in a BM4000 cabinet—which combines biological and chemical filtration in a single, integrated unit. The solution significantly reduced the installation footprint and ensured a stable treatment process at an airflow of approximately 2,500 m³/h.
To further optimize operating conditions, a humidification system was subsequently installed to stabilize humidity levels and support the biological process.
Operation and performance
BioMax2500 has delivered reliable and documented treatment performance since its installation in 2021.
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Average H₂S level: approx. 25 ppm
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Peak loads measured up to 100 ppm without loss of treatment efficiency
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Stable temperature in the range of 18–20 °C, ideal for the filter’s biological process
The filter’s ability to handle high concentrations without operational issues has been a key factor in customer satisfaction.
The customer’s experience
Klaus Andersen from Struer Klejn Smedje highlights in particular:
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Very low maintenance requirements
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Efficient and stable treatment, even under varying H₂S loads
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A compact solution that fit perfectly into the new installation
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Good collaboration and fast implementation
Klaus Andersen is available for questions and to share experiences from the project.
Result
The installation of BioMax2500 has provided Herning Vand with a robust, space-saving, and operationally stable solution for handling process air in an environment with varying H₂S levels. The solution minimizes maintenance, ensures high air quality, and supports more efficient wastewater treatment.