Envirogen Group
Envirogen Group at F.R. Mahony
Reliable Biofiltration Systems for Industrial & Municipal Odor Control
F.R. Mahony is proud to offer odor control technologies from Envirogen Group—a leading provider of biological treatment systems for air emissions. With a proven track record across wastewater, industrial, and biosolid applications, Envirogen’s modular and custom biofilters provide long-lasting, sustainable solutions to odor and VOC challenges.
Available through F.R. Mahony across New England, Envirogen’s odor control systems are engineered for low lifecycle cost, high efficiency, and ease of integration.
Engineered Biological Odor Control
Whether you’re dealing with hydrogen sulfide (H₂S), ammonia, VOCs, or a mix of nuisance odors, biological filtration offers a sustainable alternative to chemical scrubbers or thermal systems. Envirogen’s modular biofilters and biotrickling filter systems use natural microbial processes to break down odor compounds efficiently and safely.
Pre-engineered options allow fast deployment, while larger built-in-place systems are ideal for high-capacity treatment plants.
Industries & Applications
- Wastewater Treatment Plants
- Biosolids Handling Facilities
- Lift Stations & Pump Stations
- Food & Beverage Processing
- Industrial Manufacturing
- Composting Facilities
- Landfills & Leachate Control
- Municipal Odor Control
Why Choose F.R. Mahony for Envirogen?
- Envirogen partner in New England
- Decades of experience in odor control system design
- Site assessments and airflow analysis
- Local support through installation and startup
- Long-term service & media replacement programs
Envirogen Product Offerings
Modular Biofilter Systems
- Factory-built for plug-and-play installation
- Media options: wood-based, synthetic, or proprietary blends
- Handles flows up to 20,000 CFM
- Fast deployment and minimal site work
Biotrickling Filters
- Ideal for high-H₂S or VOC loading rates
- Recirculating nutrient system supports microbial populations
- Reduced footprint compared to passive filters
- Pre-fabricated or skid-mounted units available
Built-In-Place Concrete Biofilters
- Large-scale custom systems for municipal or industrial plants
- Integrated concrete structures with media containment
- Long media life (5–10 years typical)
- Fully engineered for performance and durability
What Is a Biofilter for Odor Control?
A biofilter is a natural air treatment system that uses organic or synthetic media to host odor-eating microbes. As contaminated air passes through the media, microorganisms biologically oxidize odorous compounds into CO₂, water, and harmless byproducts. This passive, chemical-free approach reduces both operating cost and environmental impact.
Full-Service Support from F.R. Mahony
✔ Site survey and airflow assessment
✔ Media selection and system design
✔ Startup services and commissioning
✔ Media replacement and maintenance plans
✔ Integration with SCADA and existing systems
Serving odor control needs across Massachusetts, Rhode Island, Vermont, New Hampshire, Maine, and Connecticut.
FAQ: Envirogen Odor Control Systems
How do biofilters compare to chemical scrubbers?
- Biofilters offer lower lifecycle costs, require no chemical feed, and have fewer moving parts. They’re also environmentally friendly and simpler to maintain.
What’s the difference between a biofilter and a biotrickling filter?
- A biofilter uses passive media and does not recirculate liquids. A biotrickling filter uses recirculating water and nutrients, making it better for high-load applications or industrial VOC removal.
How often does the media need replacement?
- Media lifespan depends on the application—wood chip-based media lasts ~5 years, synthetic and engineered media can last up to 10 years or more.
Can Envirogen systems handle industrial odors?
- Yes. These systems are used in food production, packaging, landfills, and other industries with strong or complex odor profiles.
Are these systems customizable?
- Absolutely. Envirogen offers both modular, pre-fabricated units and large-scale concrete built-in-place systems to suit a wide range of flow and space requirements.
Do I need a large footprint for installation?
- Not necessarily. Modular units are compact, and vertical biotrickling filters save space on constrained sites.
Does F.R. Mahony provide service after installation?
- Yes. We offer media replacement, inspections, and troubleshooting for all installed systems.
Your Local Partner for Envirogen in New England
F.R. Mahony proudly represents Envirogen Group throughout New England, delivering tailored odor control systems that are sustainable, reliable, and backed by expert local support.
- New England (serving all New England) through F.R. Mahony, with offices in Rockland, and Oxford.
Ready to Solve Your Odor Control Challenges?
Contact F.R. Mahony today to specify or upgrade to a biological odor control system from Envirogen Technologies.
Clean Air Starts Here
Trust F.R. Mahony and Envirogen to deliver modular, scalable, and sustainable biofiltration solutions.
Request a Site Visit | Get Help Sizing Your System | Explore Sustainable Odor Control Options
