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Industrial Process Ventilation

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									Industrial Process Ventilation


The treatment of wastewater can result in a variety of unwanted and hazardous gases, such as H2S and
SO2. As the application specialists, Buffalo Blower has the expertise needed to supply the proper air
moving equipment that is specifically designed for resisting the corrosive nature of these compounds. In
other pollution control systems, our fans are installed on the clean side, which offer a higher efficiency
design for moving gases into a scrubber or other device. One of the major challenges in wastewater and
sewage treatment plants is controlling the odors that are emitted. These plants are often located in
residential areas and forced to adhere to strict codes and regulations. These odors are caused by gases
such as hydrogen sulfide and ammonia. To reduce odor emissions a variety of systems have been found
effective, such as thermal oxidation, chemical scrubbers and biofilters. The fan requirements in these
processes are similar in that they require special alloys, coatings or fiberglass construction.

Aeration involves moving air through either a solid or fluid medium bed and is used for various
purposes. Depending on specific material being aerated, our fans are utilized for moisture control in
applications such as grain bin storage, and also provide oxygen and control moisture/temperature in
composting applications. Due to varying environmental conditions, fans used in aeration systems often
require special construction such as fiberglass, alloys and specialty coatings.

Through decomposition, landfills produce syngas, a combination of methane carbon monoxide, and
other hazardous gases. To avoid dangerously high levels of these gases, forced draft fans are used to
drive fresh air into the landfill mass. Induced draft fans are also used for pulling noxious gases out of the
landfill for safe disposal or for collecting them as a fuel source. The fans used in these applications often
require special materials or coatings along with spark resistant construction. Depending on your specific
needs, Twin City Fan will work with you to select the proper air moving equipment.

High volume, low concentration or non-condensable gases refers to gases that are in concentrations
below their explosion limit. These gases are drawn through an induced draft fan and then processed
with a RTO (regenerative thermal oxidizer) or incinerator that ultimately burns the gases for safe
disposal. HVLC gases are often corrosive and at elevated temperatures, that is why we provide a number
of fans that are corrosion resistant. In addition, we offer leak-tight construction to avoid emitting these
toxic, flammable gases into the environment. In the case that these gases are above their explosion
limit, Buffalo Blower supplies a full line of non-sparking fans that allow for the safe movement of
hazardous gases. Based on your specific requirements, our fans can be constructed with aluminum and
monel materials.

In a manufacturing environment, vacuum systems are used to move and transport waste material.
Sawdust, metal shavings, and other waste is easily transported away from work areas to a specified
collection point for simplified clean up and removal. Vacuum systems are also used to provide suction
for the manipulation of components, various materials and forming processes. These systems usually
consist of long runs of relatively small diameter pipe or ducting. This results in the need for high
pressure low flow fans.

Boilers are used in a variety of industries for producing heat and energy. Many boiler applications will
burn fuel readily available on site, such a byproduct from the given process. An example of this is
Bagasse, which is a fibrous matter that remains after sugarcane is processed to extract their juices. The
bagasse is a biofuel used for many boiler applications. Fans in boiler applications are forced draft,
induced draft, over fire air and combustion air.

								
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