Biofilters Can Be Deployed At Multiple Locations & Industries

Biofilters can be applied to any biologically degradable odor and air pollutants and are commonly employed in the water and wastewater industry for the removal of hydrogen sulfide (H2S), mercaptans, dimethyl sulfides, dimethyl disulfide, and ammonia.

Sewer Manhole Odor Control

Street-level odor complaints are often caused by septic gravity sewer lines that vent H2S and odorous air through gaps and pick-holes in their sewer manhole covers.

Especially in residential neighborhoods and commercial areas around shops and restaurants these manholes can lead to odor complaints. A quick and inexpensive solution to these complaints are our custom-designed Bioteg Manhole Biofilter Inserts.

Bioteg Manhole Biofilter (MBF-Series) >

Sewer Manhole Odor Control

Pump Station / Lift Station Odor Control

Pump and Lift Stations are frequently cause for odor complaints as sewage accumulates in their wetwells. Turbulence caused by pumping activity or high velocity inflow into the wetwell will strip out any generated sulfide as H2S, which can escape through doors, hatches, manholes or vent pipes.

Depending on the size and layout of each pump station, Bioteg offers several easy solutions for your pump station / lift station odor problems:


Small PS/LS

Odors building up in wetwells and escaping through hatches, manholes or vent pipes can be captured and treated by our:

Many customers have taken control of their wetwell odor (and FOG) issues by adding a wetwell mixer or aerator and then scrubbing the additional H2S off-gas with a Bioteg passive Manhole or Vent Pipe Biofilter.


Large PS

Larger pump stations with wetwell/drywell configurations often need to be vented for safe worker’s access. For odor control we typically recommend an air exchange rate of 6 air changes per hour (ACPH) to create a slight negative pressure sufficient to treat odors.
However, a space that is accessed by workers requires a ventilation at 12 ACPH per OSHA.

Pump Station Lift Station Odor Control

Force Main Air Release Valves

Force Mains are a common cause for H2S generation due to the long time the sewage spends in the pipe without reaeration. Often H2S builds up at high spots in the line and is released through air release valves (ARV) in high volumes and at fairly high pressure. Bioteg designed its Force Main Biofilter as a passive biofilter with a larger body of filter material to efficiently treat these high air volumes.

Bioteg Force Main Biofilter (DEBF-Series) >

Force Main Air Release Valves

Wastewater Treatment Plant – Headworks

Influent sewage to a wastewater treatment facility is often loaded with dissolved sulfides, that will readily strip out as H2S at a plant’s headworks. To improve working conditions for operators and to protect headworks equipment and electronics from corrosion, it is advisable to treat the air from a headworks building in a biofilter. Bioteg provides modular container biofilters for larger airstreams that are required to sufficiently ventilate a headworks building.

Bioteg Modular Container Biofilter >

WWTP – Headworks

Wastewater Treatment Plant – Biosolids

Nuisance odors are a common concern at treatment plants’ biosolids handling areas. Depending on the type of solids processed and the method of processing, odors are caused by organic and inorganic forms of sulfur, mercaptans, ammonia, amines, and organic fatty acids, all of which are degradable in a Bioteg Biofilter.

Bioteg Modular Container Biofilter >

WWTP – Biosolids

Septage Receiving

Wherever septage is accepted, upstream of the plant, at the headworks, at the sludge handling train, or at its own dedicated septic receiving station, septic odors are typically part of the picture. Enclosing the area and pulling the odorous air through a Bioteg Biofilter (SRBF or MCBF) can alleviate these odor nuisances.

Bioteg Stand-Alone Biofilter (SRBF-Series) >

Septage Receiving

Composting Plants

While composting is an aerobic biological process, anaerobic odors can originate from the incoming feedstock or bulking agents that have been stored without aeration before transport to the composting site. As long as odors can be captured from the composting process, they can be directed to a Bioteg Modular Container Biofilter (MCBF) for treatment.

Bioteg Modular Container Biofilter >


Industrial Applications

Bioteg Biofilters can be used on any biologically biodegradable air pollutants in a variety of industries, such as:

  • Food & Beverage
  • Pulp & Paper
  • Rendering

Bioteg Modular Container Biofilter >

Industrial Applications