Leader in Air Pollution Control Systems
Does your plant need to reduce emissions?
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Acid & alkaline gasses
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Particulate matter – PM 10/2.5
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Condensables, aerosols, & opacity
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VOCs, odor, & fumes
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Oil, mist, & dust
Monroe Environmental designs and manufactures custom air pollution control systems and equipment for eliminating and minimizing a wide spectrum of air pollutants and regulated emissions from virtually all types of sources and applications.
Have technical questions about air pollution control systems?
Air Pollution Control Applications & Process Experience
Monroe Environmental has extensive experience with a wide variety of applications and processes for air pollution control. Click on a pollutant below to learn more about our approach to treating these contaminants.
Monroe has extensive experience capturing and neutralizing acid and alkaline gasses using the following technologies:
- Packed Bed Scrubbers & Absorbers
- Venturi Scrubbers
- Multi-Stage Wet Scrubbing Systems
- Carbon Adsorbers
Common pollutants treated include sulfur dioxide (SO2), hydrogen sulfide (H2S), hydrogen chloride (HCl), hydrogen flouride (HF), ethylene oxide (EtO), and ammonia (NH3).
Physical characteristics (wet, dry, sticky, solid, liquid, vapor, etc.) as well as chemical make-up of the particulate must always be evaluated in order to determine the most appropriate control equipment. Additional factors such as application, moisture content of the air/gas stream, regulatory requirements, and other pollutants present also significantly impact control device selection.
Recent changes to many emissions regulations have made PM2.5, sub-micron, and condensable particulates of special consideration. Monroe Environmental has the experience and expertise to meet these demanding requirements.
Monroe offers the following systems for particulate matter collection, filtration, and reduction:
- Dry Dust Collectors (Cartridge/Bag)
- Mist Collectors & Eliminators
- Fiber Bed Collectors
- Venturi Wet Scrubbers
- Multi-Stage Scrubbing Systems
- Quencher/Condensers
- Wet Electrostatic Precipitators (WESPs)
Explosive Dust Collection is a specialized area of particulate matter collection. Monroe has decades of experience controlling explosive dust. Check out our Explosive Dust Collection page to learn more.
Temperature adjustment of the gas stream is often a required step to ensure that condensables are removed prior to coalescing and filtration with media or electrostatic charge.
Monroe’s systems and equipment include:
Volatile Organic Compounds (VOCs) as well odorous compounds can be removed from process exhaust via wet scrubbing, dry adsorption, and thermal destruction. Each of these has pros and cons which must be weighed according to a variety of factors including pollutant loading, gas volume, utility costs, and others. Monroe Environmental can assist with evaluating the process specifics and recommend the most cost-effective solution.
Our systems and equipment include:
Contact a Monroe Environmental applications expert for more information.
Mist Collection covers an expansive list of applications from machining, parts washing, cold rolling and hot temper mills, food processing, and many others. Monroe Environmental is a worldwide leader in mist collection, with a variety of designs to suit any application.
Our systems and technologies include:
Dust Collection is a very common air pollution control application that encompasses collection, filtration, separation, and recovery of dry, wet, and explosive particulates. There are a variety of dry filter media options including bags, cartridges, box filters, metal screens, and countless others that should be carefully selected based on application specifics. Wet Collection is also common for wet, sticky, and waxy particulate and can reduce lifetime operating costs by eliminating filter media. Explosive dust can be handled with either wet or dry collection.
Our systems and equipment include:
Contact a Monroe Applications Engineer for assistance with evaluating the best technology for your application.
650 ACFM Packed Tower Scrubbing System, polypropylene construction for SO2 removal.
Monroe Dual Throat Venturi Scrubber with drag conveyor for solids recovery at insulation plant.
4,500 CFM Carbon Adsorber to exhaust clean room at an automotive battery plant.
Value-Added Engineering, On‑Site, and Support Services
Monroe also offers a variety of engineering, assessment, evaluation, and design services to help engineers, operators, and plant personnel get the most out of their air pollution control systems.
- Air Pollution process assessment
- Scrubbing system evaluations
- Mist/Dust Collector evaluations
- Performance and compliance testing
- System rebuilds and retrofits
Auxiliary Equipment, Components, & Packaged Systems
In addition to providing air pollution control systems, Monroe offers an array of equipment, components, and devices typically needed for enabling a complete turnkey installation. These include but are not limited to the following:
- Ductwork, dampers, and stacks
- Control and instrumentation systems
- Chemical storage and feed systems
- Blowdown and water treatment systems
- Carbon and filter media
- Pumps, piping, valves, and fittings
Technical and Engineering Support Services
- Evaluations and troubleshooting of existing systems and problems
- Assessments for new and replacement systems
- Environmental permitting and compliance assistance
- System sizing and general arrangement drawings
- Mechanical, electrical and structural requirements
- PLC programming and HMI interfacing
- Cost estimating and budgeting
- Testing and gas stream analysis
- Air quality impact analysis
- And more
Industries Served
Glass & Plastics
Plating & Finishing
And more
Rental, Pilot, and Testing Programs
Resources & Literature
Recent Case Studies
Air | 250,000 CFM Mist and Dust Collection Solution for Construction Equipment Manufacturer
A high-production manufacturing facility that makes engines for heavy-duty construction equipment was expanding operations and needed to control mist, fumes, and dust generated from various machining, grinding, and polishing centers on the plant floor.
Air | Multi-Stage Mist Collector for Zinc Strip Rolling Mill Upgrade
A zinc strip rolling mill was having repeated issues with its existing fume/mist collection system – short filter life and frequent maintenance events – which added up to too much $$ being spent.
Air | Extending the Life of an Existing Fume Scrubber
Monroe Environmental is expert in troubleshooting and rebuilding a competitor’s wet scrubbing system to bring it up to like-new efficiency and performance standards.
