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93% odor reduction at rapeseed processing plant

A rapeseed processing plant had persistent odor emissions and needed a solution that works in a demanding industrial environment: an ATEX Zone 1 area.

93% odor reduction at rapeseed processing plant

A rapeseed processing plant had persistent odor emissions and needed a solution that works in a demanding industrial environment: an ATEX Zone 1 area.

The challenge

Rapeseed processing produces some of the most persistent and intense odor emissions in the agri-food sector. At this company, two separate discharge streams were responsible for the problem: a large air stream coming from the extraction and desolventization room (DTDC), and a smaller but highly concentrated stream from the absorption process.

What made this project particularly demanding was the location: all equipment had to be installed and commissioned within an ATEX Zone 1 area. A classified explosive atmosphere where electrical equipment must meet strict certification requirements.

What the customer needed

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  • Minimum 80% odor removal efficiency for both streams.
  • On-site pilot testing to validate performance before full implementation.
  • A reliable system that complies with government environmental regulations.
  • Full ATEX Zone 1 certification for all process equipment.

Pilot testing: finding the right approach

Rather than immediately proposing a complete system, Aerox began with on-site pilot testing. The first round tested both odor streams separately at average plasma capacity, with odor concentrations independently measured by a certified third party.

Initial tests confirmed that the technology was effective, but not yet at the level required. Based on 30 years of experience, the Aerox team drew two conclusions: higher plasma capacity was needed, and merging the two streams into one combined airflow would likely improve results significantly.

In the second pilot test, both streams were combined and treated at two higher plasma capacities. The combined airflow measured 70,000-90,000 OU/m³. Results:

  • 85% removal at standard capacity
  • 93% removal at highest capacity
  • 80% minimum required

A smart, expandable solution

Rather than max out the system from the start, Aerox recommended an expandable solution. Initially configured at the capacity that achieved 85% removal, with built-in flexibility to scale up to 93%+ performance when desired or needed.

This approach lowers both initial investment (CAPEX) and ongoing operating costs (OPEX). The lower initial energy consumption also results in a noticeably smaller carbon footprint.

Installation in ATEX zone 1

The Aerox Injector was installed in close cooperation with a local contractor who already knew the company and its specific requirements. The control cabinet, which itself cannot be ATEX certified, was placed outside the classified area.

A successful installation in an ATEX environment requires close coordination between the customer, contractor and equipment supplier. In this project, that collaboration went smoothly from initial contact to final acceptance.

Independent odor measurements were performed after commissioning. The results closely matched the pilot tests. The project was formally approved by both the client and the relevant environmental authorities.

Our customers are our priority

About the client

The company is active in the large-scale production of potato products, fries, and snacks.

About the client

The company is active in the large-scale production of potato products, fries, and snacks.

Aerox-Injector

De Aerox-Injector is een innovatief geurbestrijdingssysteem gebaseerd op injectietechnologie dat aan het uiteinde van een productieproces of in de schoorsteen wordt geïnstalleerd. Al meer dan 250 fabrieken over de hele wereld profiteren van onze bewezen effectieve technologie.

Aerox RCO

De Aerox-RCO is een innovatief emissiecontrolesysteem gebaseerd op katalytische technologie dat aan het einde van een productieproces of in de schoorsteen wordt geïnstalleerd. De Aerox-RCO (Regeneratieve Katalytische Oxidizer) vernietigt de emissies.

Ook ontdekken hoe wij wereldwijd geuroverlast oplossen met een duurzaam en betrouwbaar product?

Curious about how we can help you?

Our sales managers are happy to think along with you. Schedule a free consultation and discover how we can solve your odor challenge with one sustainable, proven solution.

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Up to 95% odour reduction

Suitable for large airflows up to 240,000 m³/hour

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