Monroe Venturi Scrubbers are wet particulate dust scrubbers designed to remove both heavy and light airborne particulate matter from exhaust systems, as well as flue and process gasses. Venturi Scrubbers bring particulate-laden air streams together with water at high velocities to transfer the particulate into the water stream. The water droplets and particulates are then removed from the air stream through centrifugal separation and mist elimination stages.
Monroe Venturi Wet Particulate Scrubber Designs
Monroe Environmental offers several venturi design configurations:
- Circular and rectangular scrubbing throats
- Venturi scrubbing throat
- Fixed and adjustable throat designs
- Eductor, ejector, and traditional venturi throat designs
- High, medium, and low energy pressure drops
- Dual Throat Venturi Scrubber
Monroe Venturi Air Scrubbers are currently operating continuously at high efficiency in many types of industrial installations throughout the United States, Mexico, and Canada. Independent laboratory tests have shown that many of these units are removing various types of airborne particulate at efficiencies up to 99.9%, even on heavy particulate loads.
Wet and Dry Particulate Collection for a Wide Variety of Applications
Monroe Environmental specializes in wet and dry particulate collection for a wide variety of applications. The company’s first project in the early 1970’s was a pilot venturi scrubbing system designed to remove oil and particulate from a contaminated air stream at an automotive manufacturing plant. The system was a resounding success. Since that time, Monroe Venturi Air Scrubbers have been successfully used for countless industrial and municipal applications.
Multi-Stage Scrubbing Systems with Venturi Scrubbers
Monroe Environmental Venturi Particulate Air Scrubbers will often be integrated into a larger treatment system that includes a variety of processes including cyclonic separators, Packed Tower Scrubbers, filters, etc. Monroe engineers have the capability to design complex air pollution control systems that utilize Venturi Scrubbers as an integral part of the process.
Visit the Multi-Stage Scrubbing Systems page which outlines our capabilities with these highly sophisticated scrubbing systems.
Monroe also has a very unique venturi scrubber design which is appropriate for a variety of in-plant dust collection applications (see below).
Dual Throat Venturi Air Scrubber — Wet Dust Collector
The Monroe Dual Throat Venturi Air Scrubber is a completely self contained unit that needs only to be connected to normal plant electrical, water, and air systems. The Monroe Dual Throat Scrubber is one of the most versatile venturi scrubber designs available because of its ability to handle a wide range of dry, wet, sticky, tacky, and oily particulate loads. Additionally, the system is an excellent choice for explosive dust applications.
Recirculate Clean Air to Reduce Climate Control Costs
In many installations, such as buffing and polishing, metal finishing and grinding foundry operations etc., it is possible to recirculate clean, contaminant-free air back to the work area. This reduces the cost of plant ventilation systems and climate control needs.
Dual Adjustable Scrubbing Throats
The Monroe Venturi Air Scrubber utilizes a high volume wash water injector system that removes airborne particulate by delivering an initial surface impingement shock to heavy inlet dirt loads.
High velocity atomization takes place as the inlet air is directed through the fixed and dual adjustable scrubbing throats. The easily adjustable dual throats balance the pressure drop through the air flow system at the start-up or after system changes are made.
This design feature eliminates the need for ductwork dampers and blast gates that are prone to particulate build-up and require periodic maintenance. In addition, the increase in pressure drop in the wash zone improves the overall efficiency of the system.
Double Row Moisture Eliminators
After passing through the turbulent dual throat wash zone, the air impinges on the liquid surface, changes direction and then continues through deflectors and into a large, double row moisture eliminator section. Water droplets in the airstream are removed and drain back to the wash liquid reservoir tank.
The clean, dry air is then recirculated to the work area or discharged through exhaust ducts.
Minimum Wash Liquid Requirements
Waste water disposal problems are eliminated under normal operating conditions. Each unit has a self-contained wash liquid reservoir and recirculating pump. An automatic water valve replenishes wash liquid lost through evaporation.
Optional automatic drag conveyors for removal of heavy, settled particulate and oil recovery units provide additional wash liquid cleaning for more efficient operation.
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- Pilot scrubber for rent
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- FRP venturi construction
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- Boiler exhaust scrubber
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- Compact dual throat design
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- Frac sand/proppant dust
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- Dual throat w/ drag conveyor
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- Automated venturi throat
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- Lime dust venturi/cyclone
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- Venturi/cyclone fabrication
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- Venturi/cyclone in field
Recent Projects
Venturi Scrubber Removes PM from Dryer at Fertilizer Plant
A fertilizer manufacturing plant was dealing with particulate matter excursions in their dryer exhaust. Their existing baghouse filters were shredding and splitting due to the abrasive nature of the dust. The frequent downtime for maintenance led the company to seek a solution from Monroe Environmental.
Dual Throat Venturi Scrubber for Beverage Producer
A major beverage manufacturer needed to upgrade their exhaust system. A Monroe Dual Throat Venturi Scrubber was selected because of its ability to handle the sticky, water soluble particulate.
Venturi Scrubber for Plastic Extrusion Line
Monroe’s Dual Throat Scrubber was selected to treat the exhaust air from plastic extrusion production lines because of its ability to handle the wet, sticky, tacky, and oily particulate.
Venturi Scrubber Captures Fumes & PM from Aluminum Die Casting
An aluminum parts manufacturer needed to upgrade their air pollution control system to more effectively capture and remove lubricant mist, particulate, and fumes.
Wet Scrubber Treats Dryer Exhaust
Monroe Multi-Stage Scrubbing System to remove particulate from a food dryer prior to VOC destruction with a regenerative thermal oxidizer.
Wet Dust Collector for Explosive Dust
Dual Throat Venturi Wet Scrubber for explosive dust collection for a plastic manufacturing process.
Venturi Air Scrubber Applications
Resources & Literature
Recent Case Studies
Air | Multi-Stage Scrubbing System for Incinerator Exhaust
Monroe Environmental provided a multi-stage wet air scrubbing system for HCl and particulate removal from incinerator exhaust at an industrial waste plant.
Air | Halide Recovery at a Major Glass Products Plant
Custom designed Multi-Stage System – process gasses treated with a series of scrubbers, and wastewater was treated with a Monroe compact clarifier.
Air | Glass Resin Scrubbing System
Custom designed Multi-Stage System to provide high efficiency scrubbing of the phenol & formaldehyde, as well as separation and removal of the dust particulate.
