Exeon’s bio-flo™ is a biofilter system designed for absorption of odours and emissions across a wide range of waste, sewage and general industrial applications.
We utilise specific bacteria specially cultivated for the application.
Exeon also has a bio-flo-EC™ open-top biofilter range which can be found the link below.
Using fans the bio-flo Modular™ extracts air from the vessel/ building, and draws it through the system.
Air moves across through the static, high capacity dust filter system designed to remove dust from the air flow.
The dust filters are individually sealed and accessed via an access door.
The air is then evenly dispersed in the bottom of the system and drawn up through the pumice stone filter bed.
Chemical is introduced from the top, by overlapping irrigation ensuring the whole bed is saturated evenly therefore avoiding dry areas and subsequent emission bypass.
Finally the air is discharged out the stack.
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CHALLENGE
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ISSUE WITH APPLICATION OF BIOFILTER
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SOLUTION
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Stringent control of odours or emissions on the process - <1000ou/m3 for example
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Biofilters are less efficient than other technologies so will not necessarily reach this level of control. In addition, they release a mild odour from the media bed.
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A secondary filter, such as a secondary carbon polishing filter, can be required for additional filtration.
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Emmission contaminant contains chemicals which kill biofilm
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Biofilters have a ‘living’ media bed and are not suited to substances which are poisonous, or inorganic chemicals.
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Use alternative abatement technology for these applications
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Woodchip or other short-life material used on media bed
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Biofiltering is an active process and degenerates beds such as woodchip. Typically woodchip will last around 12 months.
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Use Pumice stone or Coir.
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Open Top biofilter
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These have multiple issues as detailed below but the largest problem is the protection of the bed.
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Open-top biofilters do not maintain performance and should be covered to protect from weather,
animals etc.
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Inadequate irrigation
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A biofilter should have irrigation covering the complete surface / overlapping. Open top biofilters do not have this so typically struggle with dry areas of the bed and subsequent emission bypass.
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Used close top biofilters with correct overlapping irrigation
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Incorrect distribution of air across the bed causing tracking
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If the airflow is not spread correctly across the bed, the air will not have sufficient contact time on the media bed to remove emissions.
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The air should be ducted across the filter media bed for correct distribution to ensure correct dwell times.
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Poor ongoing maintenance, sometimes due to systems that are very difficult to service
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Design of unit, and operator neglect.
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Ensure good access, and that specified maintenance regime is maintained. Good supplier training is vital.
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Biofilter odour control is a highly effective, environmentally-friendly solution for managing odours in industrial settings. Using natural biological processes, biofilters filter and neutralise odours by breaking down volatile organic compounds (VOCs) and other harmful substances. The system works by passing contaminated air or water through a media bed that houses microorganisms, which degrade pollutants into harmless byproducts. This provides a sustainable and efficient method for air and wastewater purification.
Industrial operations often produce unpleasant and potentially harmful odours. Left unchecked, these emissions can harm air quality, negatively affect surrounding communities, and lead to compliance issues with environmental regulations. Biofilters for air pollution control offer an ideal solution by targeting and eliminating odours at the source. Furthermore, biofilters play a crucial role in reducing industrial waste and lowering the carbon footprint of various facilities.
A wide range of industries benefit from biofilter odour control. Biofilters are particularly effective in the wastewater treatment sector, where biological filters for wastewater treatment and biofilter sewage treatment plants help remove organic compounds from water. The food processing industry also employs biofilters to manage the release of organic odours during production. Furthermore, biofilters are critical in industries like chemical manufacturing and pharmaceuticals, where air biofilter systems effectively control emissions of hazardous materials.
At Exeon, we provide modular biofilters tailored to the specific needs of our clients, allowing for scalability and flexibility across different industrial applications. Whether it’s for biofilters in air pollution management or biofilter water treatment in facilities handling large volumes of liquid waste, our solutions are designed to meet stringent environmental standards.
Biofilters are particularly beneficial in environments where emissions of odours and pollutants are continuous or highly concentrated. Wastewater treatment plants, including aerobic biofilter systems and biofilters in water and wastewater treatment, significantly reduce odours and improve the overall environmental impact. Industrial plants that emit gases containing VOCs, ammonia, or hydrogen sulphide—such as chemical and pharmaceutical manufacturers—benefit greatly from biofilter odour control. Biofilters are also effective in agricultural settings, including livestock facilities, where managing odours is crucial for both environmental compliance and community relations.
At Exeon, we are committed to making cleaner air a reality for the industrial sector. Our bio filter systems, including the innovative bioflo technology, provide robust solutions for air and water odour control. Whether you’re looking to install a new biofilter or upgrade an existing system, we’re here to help. Contact us today by either ringing 01462 410010 or emailing at sales@exeon.co.uk to discuss how our biofilters can improve your facility’s environmental footprint. Let Exeon be your partner in sustainable odour control.
Scalable Capacities With capacities ranging from 1,000 – 150,000 m³/hr, the bio-flo-EC™ is modular in design, making it flexible enough to handle both small-scale and large-scale operations.
Units can be combined or tailored to match specific site requirements.
Targeted Biological Treatment
Each system uses specially cultivated bacterial cultures chosen for their ability to degrade specific contaminants. This ensures optimal performance, efficiency, and long-term stability across a wide range of applications.
The bio-flo-EC™ excels in treating air streams with high moisture content and elevated concentrations of hydrogen sulphide (H₂S), mercaptans, and other volatile waste emissions.
This makes it an ideal solution for challenging environments such as:
• Buffer tank venting
• Sludge handling facilities
• Sewage vessel venting
• Proven odour and emission reduction
• Environmentally responsible technology
• Flexible, modular installation
• Long-term, low-maintenance performance
