Fewer smells, better image

Dutch company Aerox supplies innovative odor abatement systems all around the world. SIBA miniature fuses protect the equipment from damage.

Manufacturers don't often publicly present their exhaust technology plans to their immediate neighbors and environmental regulators. But that's exactly what Mitas did in November 2005. The Prague-based tire manufacturer was obviously confident that the technology would work well. As it turned out, Mitas's guests were so impressed with the odor control system developed by Dutch company Aerox that the tire maker immediately ordered a system and put it into service four short months later. Since then, it has made life much better-smelling for local residents; the complaints have essentially stopped. This is a key step toward improving the factory's image and acceptance after years of failed attempts to eliminate offensive odors. The secret to Aerox's success: cold plasma. It breaks down the exhaust air and completely oxidizes most of the odor molecules while expending very little energy. This produces much better air for everyone - not just for Prague's inhabitants. SIBA fuses play a key role in the system.

Robust, industrial-grade fuses needed

Der Injektor wird in den Abluftstrom eingebaut, er führt mit kaltem Plasma angereicherte Außenluft der Abluft zu, die dadurch geruchsärmer wird
  AeroxInjector blends ambient air with cold plasma and injects it into the production plant's exhaust stream.

"What we need are robust, industrial-grade fuses closely tailored to our technical requirements. And that is exactly what SIBA provides," explains Ronald van der Wolf, a project engineer at Aerox. There is a good reason for these stringent requirements. The core component of Aerox's system is the AeroxInjector, a device that blends ambient air with cold plasma and injects it into the production plant's exhaust stream. Several modules produce the plasma, which is essentially a mixture of free oxygen radicals. This "active oxygen" is so reactive that it can oxidize nearly all the odor molecules and thus eliminate odors without producing any residues. Aerox uses SIBA fuses in the injector's high-voltage component and cold plasma modules. "The high-voltage component alone is protected by six high-voltage miniature fuses," says van der Wolf, "and we only use SIBA products in this area. We know that SIBA has a deep knowledge base when it comes to high-voltage miniature fuses." The modules are also packed with SIBA technology - "around 80 percent" of the fuses were supplied by SIBA.

Close working relationship already in research and development
Aerox's odor abatement engineers are particularly pleased by their close working relationship with the SIBA team. "It's more than just a customer-supplier relationship," says van der Wolf. He underscores the fuse developers' problem-solving skills. "This year, SIBA conducted a small study to examine how the fuses worked in our modules - completely free of charge. Their findings were extremely useful." That helps explain why the partnership has lasted so long. Jan Goossens, Managing Director of the Dutch SIBA subsidiary, notes, "Aerox has been using SIBA fuses for over ten years. We are obviously delighted to have maintained a relationship with such an innovative company for so long."

SIBA fuses help control unpleasant odors all over the world. In fact, Aerox has even begun shipping to Asia, where people greatly appreciate the benefits of its injectors: not only is the technology essentially residue-free and low-maintenance, but it can be easily installed on the roof or at any other point in the exhaust train. Aerox's solution should not, however, be confused with ozone generators, which also abate odors and use cold plasma to produce ozone. Although Aerox used to provide ozone systems, it switched to active oxygen over ten years ago because it found that the ozone technology was not reactive enough, required too much energy and generated too much unused ozone.

Injectors are popular: used in process that
produces disagreeable odors

The injectors are popular with more than just tire makers; they are used in every process that produces disagreeable odors. "Aerox has a particularly strong presence in fish food, pet food and mixed feed production and in the tobacco industry," reports van der Wolf.

Efficient odor abatement will likely remain a booming industry, especially as residents become more sensitive to emissions. Legislators are taking note, too. Current administrative requirements tend to focus exclusively on pollutant emissions. However, odor regulations have also become more specific. In 1998, for example, the German State Committee on Pollution Control issued an Odor Emissions Guideline (EOG) in 1998 and amended it in 2004. Many German states transposed the EOG into administrative regulations that attempt to quantify odor nuisances. The corresponding regulation in the State of North Rhine-Westphalia, for example, was last amended in November 2009. The EOG is not always legally binding, but it provides important guidance for the courts when adjudicating disputes.
Regardless of the regulations, one thing is clear: if you want to be accepted, you have to avoid odors and keep your neighbors happy. Prague is a prime example. Not only were residents and environmental officials delighted by the technology, but the mayor took the time to inspect the Aerox system and learn about its benefits himself.

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Joachim Skock

Head of Salespromotion
Telephone: +49-2306-7001-217
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