Emission Control
American Environmental
Fabrication & Supply, LLC

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Natural Gas Conditioning
Gas Separation Systems
VOC Biofiltration Systems
Granulated Carbon Systems
VOC Concentrators
Automated PLC Controls
Equipment Inspections - Installation - Rebuilds
Low NOx Burners
PSA Systems
Benefits of Renting vs. Owning Air Pollution Control Equipment
We have a ready to use air pollution control fleet or can design a specialized system for your plant operations. Some of the available systems include:
Granulated Activated Carbon (GAC) Systems, Biological Oxidation System, Wet Scrubbers, Regenerative, Catalytic and Direct Fired Thermal
. Rentals range from 6 months to 5 years with flexible options.

Treatment Information
Helpful Equipment Information
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To reduce the risk of carbon bed fires facilities are changing from chemically impregnated carbon
to the impregnated carbon beds, rapid oxidation can occur causing intense carbon bed fires.

Many times after a waste treatment facility has experienced a carbon bed fire, they seek a different
type of carbon or maybe looking at newer advanced treatment technologies. Typically, the resolve
comes from fire insurance liabilities, premium increases or hazardous employee exposure.

With the use of other more advanced technologies the H2S can be removed and trapped as a salt
and then converted in another process to elemental sulfur. The system offers a unique system of
continuous rejuvenation providing one of the most effective means of waste process odor
treatment eliminating any exposure to possible carbon bed fires.

In the constant rejuvenating procedure, the H2S is contained within a stainless steel vessel divided
into several segments. This assures that one of the processing segments is in the rejuvenation
cycle. It is in this position that salts are exposed to the rejuvenation formula. This process flushes
the collected salts from the upper segment and into the rejuvenation solution. The process gas
remains saturated and is exhausted through a de-mister unit before existing the system. The system
requires an internal sprayer system which includes a chemical pump, recirculation tank and spray
nozzle. With carbon bed systems the typical flushing periods may take over two days and require
the use of a secondary carbon bed. Using the ThioScrub System the cycle remains continuous
without any system interruption.

The typical life cycle of standard catalytic beds is two years. With the ThioScrub System the life
cycle will continue over 20 years with minimal maintenance. Constant rejuvenation or cleaning of
the of salts and added formula will maintain the system for years with minimal chemical requirement.

Switching from chemically impregnated carbon or catalytic carbon makes sense after comparing
the maintenance, threat of carbon beds fires and constant long term caustic cleaning of the carbon
beds. Restoring most carbon beds will require the use of sodium or potassium hydroxide; these
chemicals remove the sulfur and are required to rejuvenate the carbon bed. However, workers
must be careful when applying these chemicals due to the elevated temperatures.

Should minimal air be present to remove or cool the elevated oxidation temperatures, local hot
spots in the carbon bed can occur and may result in a localized bed fires which is extremely
difficult to extinguish. These carbon bed fires can reach temperatures high enough to cause
permanent damage to the filtration equipment.

The ThioScrub System has a very high ability to remove H2S with typical removal efficiencies
above 99%. The system provides in the lower stages introduction of oxygen into the sulfide salts.
This introduction accelerates the promotion from sulfide salts to elemental sulfur.

With use of the ThioScrub System catalytic adsorption maximum capacity will never be reached.
This is due to the continued rejuvenation cycle. The H2S continues to be processed without any
form of carbon cleaning, shut downs, purging, drying or washing. For more information about the
new system please give us a call.
Reducing Odors And Carbon Bed Fires At Waste Treatment Facilities
Toll Free: +1 (866) 467 - 9374
Main: +1 (918) 708-1253
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Our working process
in 3 steps

planing & strategy

test & deliver

design & develop
chemical, thermal and biological reactions
that achieves the required process result.
Results shall be based on reaction rates
and proper control logic.
Our Corporate goal is to implement the
proper metals, instruments and controls to
achieve the required result with the least
amount of maintenance and associated
energy costs.
We pride ourselves in going the extra mile
before it leaves the plant. It is our way of
knowing that you are receiving correctly
designed equipment to meet your specific