Air & Gas Cleaning Solutions

Water & Wastewater Clarification

Replacement Parts & Service

Case Studies

Monroe Environmental has been designing and building pollution control systems for over 40 years. This experience has provided us with the expertise to solve complex problems that require specialized knowledge and advanced manufacturing capabilities.

Our team of engineers, in conjunction with our experienced shop technicians can design and build complete systems capable of treating contaminated water and air streams that contain several toxic pollutants.

Note: Scroll down to view the "Water" case studies

Air Case Studies

Air #1 - Incinerator Exhaust Multi-Stage Scrubbing System

Monroe Environmental was called upon to purify a 20,000 CFM exhaust stream that was being discharged from an industrial waste incinerator at 2000° F...

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Air #2 - Glass Resin Scrubbing System

The plant was emitting about 6.0 lbs/hr of toxic fumes from their resin reactor at a temperature of 200oF. The emitted gases to be cleaned were from hazardous, gaseous pollutants such as phenol and formaldehyde, as well as dust particulate...

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Air #3 - Halide Recovery at a Major Glass Products Plant

A glass manufacturing plant was having trouble cleaning the emitted gases, particulate, and odors that resulted from its manufacturing process. Metallic Halides such as SnCl4 and TiCl4 were being applied to hot glass to impart special properties...

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Air #4 - Oil Mist Collection at Synthetic Fiber Manufacturing Plant

A synthetic fiber plant's manufacturing operations produced a large amount of oil mist. The oil mist consisted of heavy oil droplets, smoke, and sub-micron vapors. The manufacturer required the air to be cleaned of the oil mist...

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Air #5 - Dust Collector Exhausts Sandblasting Operation

A fabrication facility had a dedicated bay for sandblasting and painting that required capturing and filtering smoke, fumes, and dust. The sandblast material was an abrasive silica that would pulverize upon contact with the metal surface and create thousands of fine dust particles that would cloudy the air and fill the room...

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Air #6 - Carbon Adsorber Solves Odor Problem at Grainery

A grain processing facility was struggling with foul odors that were being emitted from a fertilizer dryer. The dryer was located near the entrance to the plant and the pungent odors were a significant nuisance to both plant workers and visitors...

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Air #7 - Biogas Scrubber for Anaerobic Digester at Dairy Farm

A dairy farm was looking to re-use the off-gasses from its anaerobic digester as a fuel source for diesel engines on the property. The digester gas, also known as biogas, was made up mostly of methane, carbon dioxide, and hydrogen sulfide. In order to protect the engines from the corrosive properties of the H2S, it had to be removed from the gas...

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Water Case Studies

Water #1 - Municipal WWTP Secondary Clarifier Rebuild

A municipal WWTP found that (2) of their secondary clarifiers were too rusted and corroded to properly function. A traditional clarifier refurbishment consisting of sandblasting and painting was not a viable option because one of the clarifier rake arms had recently broken due to its poor condition...

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Water #2 - Parallel Plate Modules Retrofit Into Existing API Separator

A silicone manufacturing plant was increasing production capacity and needed to increase the treatment capabilitiy of the accompanying wastewater stream which contained tramp oils and solids...

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Water #3 - Horizontal Clarifier Settles PVC Fines From Process Water

A PVC resin manufacturing plant was looking to expand its operations without purchasing additional water supply, a limiting factor in the expansion decision. In order to do so, the plant had to clarify and re-use the process water that was being discharged from a centrifuge...

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Water #4 - Vertical Clarifier Treats Raw Water at Chemical Plant

A chemical manufacturing company needed to clarify surface water that was being drawn from a local creek for use as a cooling agent in their manufacturing process. The existing system was 30-years old, corroded, and not very adept at handling solids after separation from the water...

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Water #5 - Monroe Saves City of Detroit Millions on WWTP Upgrades

The City of Detroit WWTP, which treats an average of 707 million gallons of wastewater per day, needed to upgrade (4) of its 250 ft. diameter circular clarifiers. The project included converting the sludge rakes to higher efficiency spiral scrapers and rehabilitating existing drive units, as well as replacing influent wells, column supports, weirs, baffles, and launders...

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Water #6 - Air Stripper Removes VOCs From WTP Groundwater

The groundwater source for a municipal water treatment plant was contaminated with a variety of VOCs (Volatile Organic Compounds) including TCE, PCE, DCE, and vinyl chloride. The plant was located in a suburban neighborhood, so the noise level from the stripping tower had to be minimized so as not to disturb the surrounding residents...

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Water #7 - Belt Skimmer Provides 30+ Years of Oil Removal 

The second largest coal-fired power plant in America was having a problem removing accumulated oil from its rectangular wastewater holding basins. The basins were located roughly 20 ft. below ground level which made retrofitting, maintenance, and overall access very difficult...

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Products & Services

Air Case Study

Monroe Environmental was called upon to purify a 20,000 CFM exhaust stream ...Read more »

Water Case Study

A municipal WWTP found that (2) of their secondary clarifiers were too rusted and corroded to properly function...Read more »

News Releases

All Press Releases
Monroe Environmental Building Expansion
Monroe Participates in the NW Ohio Manufacturing Forum
Monroe Environmental Featured in Automation Alley's X-OLOGY Magazine
Monroe Sales Executive Award Nomination
U.S. Congressman John Dingell Visits Monroe Environmental
Detroit Wastewater Treatment Plant Renovation