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Odor Control

BioTriad Environmental, Inc. is your one-stop source for turn-key environmentally safe odor control solutions.

We approach every project with the same goal: find the best solution, not the most profitable solution.

Many odor problems can be treated without incurring massive expenses; BioTriad has identified numerous free or low cost odor control methods.

After implementing our operational changes, if you still have issues with fugitive odors, we have the solutions.

We are a manufacturer and supplier of odor control equipment, products and services that you can trust.
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Our Odor Inhibitors and Scavengers are added directly into the waste stream, before malodorous gasses are emitted into the atmosphere.

Odor Neutralizers and Aerosol Reagents are delivered into the air to treat fugitive malodors.


Inhibitors... Prevent the production of malodors.

Scavengers... Attack malodors before emission.

Air Scrubbers... Scrub malodors out of the air.
Neutralizers... Neutralize airborne malodors.

Reagents... React with airborne malodors.


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Our specialists solve problems dealing with odor complaints and complex odor sources every day.

Odor Control Experience?

BioTriad's expert staff has an average of over fourteen years of experiance in the treatment of fugitive nuisance odor emissions.

We have been involved with thousands of successful odor control applications.

Our unique Identification Matrix enables us to determine the most effective turn-key solution for your specific application.

We investigate your odor source(s), identify the most effective treatment method and implement the solution, solving your problem.

You can contact an odor control specialists at:

How are Odors Produced?

Understanding the fundamentals of odor production can be useful in the pursuit of odor reduction and elimination.

Following is a brief overview of how malodorous compounds are produced:

In the Biological Production of malodors, living creatures produce odors during their digestion and respiratory processes.

Non-Biological Odor Production involves the emission of odor compounds from solids or liquids to the gaseous state.

The Odor Control Resource Center...

BioTriad has devoted a portion of its web site to the development of a knowledge base for the science of odor control.

"The Odor Control Resource Center" is a tool to help average, everday people understand the nature of odor control.

We welcome any additions, questions or comments. Please email feedback to ResourceCenter@BioTriad.Com

To visit the resource center, -Click Here-

Biological Odor Sources...

It is common knowledge that humans produce gasses through respiration; we breath in oxygen and breath out carbon dioxide.

We also produce malodors such as ammonia (from urine) and hydrogen sulfide (from flatulance) as part of our digestive system.

To treat the biological odor emissions from a person, we can simply change that person's diet.

Nutritionists and dietitians have identified several foods that can cause excessive flatulence (such as beans and broccoli).

Changing the food source for odor producers is a form of an odor control technique termed inhibition.
Non-Biological Odor Sources...

When you open the cap on a bottle of perfume, fragrant gasses and vapors are emitted.

The simplest method of odor control for a bottle of perfume is to close the cap; seal it tightly so that the odors cannot escape.

Many household products can be capped off rather easily, yet there are numerous industrial odor sources that must be vented.

In industrial applications, capping off an odor source can cause an even bigger problem.

When completely sealing off an odor source is not possible, partial coverage can reduce fugitive odor emissions.

An Example of Solid Waste Transfer Station Odor Control...

BioTriad Environmental was contacted by a solid waste transfer station in New York for help with a fugitive odor problem.

One of our odor control specialists met with the site manager and several of the workers, gathering information to better understand their specific operation.

The waste management company had tried equipment and chemicals from three different suppliers and still had odor complaints.

Our specialist spent quite a bit of time examining the site and touring the surrounding neighborhoods before making the first recommendations.

Operational Modifications...

1- Don't Let Trash Sit Overnight...

Our odor control specialist found that the transfer station maintained thirty or forty tons of MSW on the tipping floor every night. The longer garbage sits, the more it stinks. We recommended completely cleaning the tipping floor every night.

2- Don't Take In Stinky Loads...

Our specialist identified one source of particularly malodorous trash; a local supermarket. We recommended that the hauler increase the frequence of pickups from the supermarket so the trash wouldn't have as much time to decompose.

3- Keep the Yard Clean...

Liquid from garbage trucks was constantly dripping out onto the pavement of the transfer station yard. A transfer station can collect several gallons of leachate per hour. We recommended that the street washer be used on the yard twice each day.

Within five days the operational modifications had brought the odor complaints down from eight to twelve a day to just two or three.

The decrease in odor complaints was significant, but it was not enough.

During that first week BioTriad's crew installed an advanced odor control system while our specialists continued studying the site.

Vapor Phase Odor Neutralization...

Vapor Diffusion Manifolds...

The transfer station was equipped with exhaust fans to ventilate the tipping floor. Unfortunately they were not operating the fans because of the intense odors within the building. Our installation crew mounted vapor diffusion manifolds at the inlet of every exhaust fan to neutralize the odors before emission.

Garage Door Odor Curtains...

With the exhaust fans back up and running, the building was now under a negative pressure. Still, heavy crosswinds or dragout fumes from exiting trucks could enable odors to escape through the doorways. We installed a garage door odor curtain on every door to neutralize any odors that pass through.

Our odor control team had the transfer station staff add an odor reagent to the water within the street sweeper to counteract the leachate odors in the truck yard.

We injected another odor reagent into the ceiling mounted dust suppression system so that the water-based mist would topically apply another odor treatment.

The odor complaints stopped coming in and the problem was solved, but BioTriad continued working for the benefit of the waste management company.

Our specialists worked with the site staff on several more operational modifications- to decrease the odor neutralization and counteraction costs.

Today this solid waste transfer station remains profitable while operating in good standing with the community.

An Example of Sewer Treatment Plant Odor Control...
A wastewater treatment plant in New Jersey was experiencing odor complaints from some nearby residential and commercial neighbors.

BioTriad's odor control specialist met with the chief operator to go over the plant's flow and operation plans.

As with many water pollution control facilities, there were many potential sources of fugitive odor emissions on site.

Our specialist gathered odor samples from several different points with careful attention to timing with each specific process.

Sources of Fugitive Odor Emissions...

Headworks Wet Well and Grit Removal...

Air samples were gathered from the open air above the uncovered headworks wet well. Samples were also gathered from the exhaust fans in the grit removal area

Aeration Basins and Clarifiers...

The air above each of the aeration basins and clarifiers was sampled at the low and high flow marks of the week.

Dewatering and Sludge Loading Area

Air samples were taken from the exhaust fans in the belt press building and in the open air around the sludge loading area.

The air samples were subjected to an odor analysis via sample dilution testing on an olfactometer.

All of the samples contained high concentrations of odor, as was expected.

Air sampling is not only intended to identify odor concentrations but also to determine which of the potential odor sources is detectable from the fenceline of the plant.

The results of the odor analysis revealed that the fugitive odors emitted from the exhaust fans in the belt press building were the only samples likely to cause odor complaints.

BioTriad designed an odor control plan that included an odor scavenging product injected into the sludge line before the dewatering building.

We added an odor neutralization system to treat the exhaust fans above the belt presses to treat any odor that may have escaped the scavenger.

The odor complaints dropped from a weekly event to a few each year and the problem was solved.

BioTriad has solved similar odor control issues with the same diligence in other wastewater treatment plants as well as numerous agricultural, municipal and industrial applications.

BioTriad Environmental, Inc. / Solutions / Odor Control

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