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Biofilters, Biotricklers, Biogas and Organics

Solutions for Your Odor Control Needs

VOCs, HAPs and H2S Removal

Biorem offers a variety of engineered solutions to treat a wide range of air emission abatement needs. Whether you are looking for a solution to treat odors at a municipal plant, remove volatile organic compounds from an industrial facility or condition a biogas stream from an agricultural or landfill site, we have a proven solution to meet your air emission control requirements.

At the heart of each of these solutions is one of Biorem’s unique engineered media(s), Biosorbens®, XLD or LWE which all come with a 10 year guarantee.


Biorem offers biological solutions for the removal of odors, H2S, VOCs and HAPs. Our systems can treat air flows from as little as 100 cfm to greater than 500,000 cfm of air and are available in many sizes, configurations, and options from our smaller integrated modular units to our larger custom designed field erected system. Biorem’s biofilters utilize our patented inorganic permanent media Biosorbens® and XLD® which both carry a 10 year warranty.

  • Wastewater treatment plants:
  • Head works, grit removal, bar screens, Lift Stations
  • Clarifiers, Aeration basins
  • Biosolids management (Dewatering, Digestion, Storage, Drying, Composting)
  • Septage
  • Total odor applications
  • High level organic sulfer
  • Indoor applications requiring prefabricated units for ease of installation
  • Organics processing (Compost, Anaerobic Digestion)
  • Rendering plants
  • Agribusiness
  • Food & Beverage
  • Pharmaceutical
  • Surface Coatings
  • Petrochemical


Features  Benefits
Custom Units Units are built to the specific need and requirements of our clients to ensure optimal performance and satisfaction with every installation
Permanent Media(s) Biosorbens® and XLD are an engineered, permanent media(s) that will not break down or compact and are guaranteed for 10 years. Advanced design and superior performance of both Biosorbens® and XLD allow for shorter retention times and footprint reduction
Superior Performance Greater than 99% H2S removal and more than 90% total odor removal. 1 OU at Property Boundary designs available
Low cost installation Modular units are factory assembled reducing on-site installation costs
Flexible Vessel Options Options on our modular units include 304 or 316 stainless steel, FRP & Rigid Geon® Vinyl, HDPE
Larger field erected units are constructed with reinforced, corrosion resistant ternary-blend concrete which is guaranteed against corrosion for 10 years.


Biorem’s Biotrickling Filters are designed for demanding applications of high concentrations of H2S or other water soluble compounds. We offer a range of structures and random packed medias to suit the specifics of your particular application.

Simple to operate, these systems are robust and effective for a variety of applications:


High H2S
Methanol, MEK, Acetates, Formaldehyde
Ammonia (NH3) removal
Wastewater Treatment Plants
– Head Works
– Grit Removal, Bar Screens
– Pumping Stations
    Pulp & PaperBiogas and Landfill ApplicationsIndustrial Applications for VOC RemovalRoughing Filter


Feature Benefit
Small Footprint Reduced footprint due to vertical design and lower EBRT due to efficiency of the synthetic medias
Low Life Cycle Costs The ultra efficient design and synthetic media gives our biotrickling filters the lowest life cycle and operation costs
Energy Savings The unit is designed with the media to have a low pressure drop which in turn means a lowers static pressure drop across the unit, ultimately saving money
Environmentally Friendly  No harmful or costly chemicals are used



Biorem offers a number of structured and random packing for immobilization of microbial cultures. Specific media properties such as surface area, porosity, uniformity and density are critical factors for appropriate selection to meet intended operating conditions and required performance.

Structured Packing

Large surface areas and unique geometry allow for custom reactor designs

Random Packing

Biopack – High H2S, Roughing Filters
PUF – High efficiency work horse for most standard applications
LWE – Polishing stage media for high removal efficiencies


Complex odors associated with various municipal wastewater treatment processes can be difficult to treat.  That is why Biorem offers a robust and cost effective approach by combining our biotrickling filters and biofilter technologies.  The first stage consists of a customizable biotrickling filter that is used as a roughing scrubber to remove elevated hydrogen sulfide concentrations, allowing the second stage biofilter to concentrate on the more difficult organic sulfides and VOCs.


  • Total odor removal
  • Elevated inlet H2S air stream
  • Headworks
  • Bar screens
  • Biosolids management
  • Grit removal
  • Pumping stations
  • Industrial applications for VOC removal


Features  Benefits
Handles difficult applications Our dual stage systems can handle the most difficult air stream applications, providing long term consistent total odor removal
Variety of Reactor Types Can be constructed using a variety of material types to meet budgets, delivery requirements and plant aesthetics
Media The engineered mineral based media is homogenous and uniform in shape, providing consistent performance with less maintenance when compared to other media
Water recirculation system Reduces wastewater generation and water consumption
Automated Controls Operator friendly and compatible with most SCADA systems
Dual Stage Handles peak variations, shock loads and process upset with ease

Biogas Solutions

Untreated, contaminants found in biogas can cause significant, costly and irreversible damage to downstream equipment, resulting in an increase in costs due to repair, replacement and downtime. Biorem offers a proven, cost effective line of biogas conditioning systems designed to protect your equipment from the damaging effects caused by H2S, siloxanes and VOCs typically found in sewage, digesters or landfill gas. With increased knowledge of the need for energy independence and for the development of sustainable energy sources, biogas emissions can be converted to a valuable source of alternate energy. 


• Low operation and maintenance costs
• High reliability and system availability>98%
• Strategic business partnerships
• Worldwide resources
• Biorem ‘s strong reputation for delivering custom solutions


Municipal Wastewater
Industrial Wastewater

Complete Gas Analysis

Biorem offers sampling and gas analysis services to determine the exact composition of your gas stream, ensuring you are getting the right treatment for you needs.


Biorem is able to provide a full range of services including feasibility studies, custom designs, start-up, commissioning and operational support


Biorem is committed to ensuring your biogas project is handled professionally from start up to completion. We offer a variety of long-term service contracts, ranging from complete operation of the system to yearly gas sampling and recommendation reports.
Biogas Conditioning

A typical Biogas treatment consists of the following:

• Hydrogen sulfide removal
• Moisture removal
• Siloxane removal
• VOC removal


• Increase potential revenue from your gas stream  (electrical, heat, gas)
• Reduced emissions
• Meets gas quality targets
• Improves the economics of facility operation
• Reduces operations and maintenance costs
• Reduces equipment downtime
• Increases the longevity of downstream equipment

Organics & Anaerobic Digestion

Biorem has met the challenge in developing the next-generation of biological odor control systems for high profile applications. With over 20 years of experience in the industry, our team of engineers and technicians can help tailor a solution for your particular needs. Whether you need to retrofit existing equipment or design a new greenfield facility, we have the resources to make your project a success.

Composting facilities and anaerobic digestion of organics produce odors from a variety of processes. Biorem takes an integrated approach, working closely with your process to provide an optimized solution.


  • Custom designed biological solutions
  • Energy efficient systems
  • High Efficiency Odor Destruction (>95%, 1 OU property boundary designs)
  • Reduced Footprints
  • Low Operating Costs
  • Engineered Media (10 year warranty)

What sources can be treated?

  • Receiving Areas
  • Storage Tanks
  • Pre-treatment and Sorting
  • Active and Passive Composting
  • Digesters
  • Screening


Small footprint, high performance two-stage biofilter is skid mounted for simple installation and perfect for sites with limited space requirements.


Specifically designed for low air flow applications typically found at pump and lift stations where high concentrations of H2S are found and total odor removal is required.


  •  Small footprint for tight space requirements
  • Simple Installation as skid mounted unit is shipped complete to site
  • High performance permanent media(s)
  • Total odor removal >95%
  • H2S removal of >99%
  • Available in two sizes (Up to 250 cfm (425 m3/h) / Up to 450 cfm (680 m3/h)
  • Tank material: High Density Polyethylene with UV inhibitors
  • NFPA 70 and NFPA 820
  • Nema 4x control panel
  • Nema 4x water box



Biorem is the leader in developing high performance, permanent filter media products. Biosorbens®, was brought to market 10 years ago as the first permanent biofilter media in North America and with it, Biorem has achieved recognized leadership in biofilter installations.

Today, Biorem continues to develop and commercialize top performing, proprietary filter media to provide the treatment of an ever widening array of air emissions. Biorem has expanded its product offering to include two new filter medias: XLD and LWE, which have higher performance efficiency, are more light-weight than Biosorbens® and are demonstrating strong customer acceptance.

The medias are engineered to exacting specifications, ensuring predictable and consistent performance in every application. Specifically designed for maximum removal efficiencies of odorous compounds, Biorem’s medias are all backed by a performance warranty.


biosorbens circle black borderBIOSORBENS®

A top performing, engineered inorganic permanent biofilter media which delivers consistent performance over the life of the media. BIOSORBENS® is ideal for applications where total odor removal is required. It is guaranteed to perform and carries a 10 year warranty.



LWE circle black borderLWE®

The uniform and homogenous nature of this non-biodegradable media ensures even water distribution and superior predictable performance. The fluid nature of this media allows for easy installation and assumes the shape of the container. This property minimizes un-wanted voids and allows for uniform media distribution throughout the vessel.



xld circle black borderXLD®

A high performance engineered biofiltration media specifically designed for biosolids applications where the removal of high odor, low H2S and reduced sulfur compounds are critical. Total odor removal efficiencies of up to 99% can be achieved in 30 seconds and greater than 95% in 20 seconds or less, allowing XLD to achieve higher total odor removal in less than half the time of conventional inorganic biofiltration  medias. XLD’s short retention times and lightweight design allows for small footprints and unique bed configurations to meet specific site requirements.