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Exhaust Air Purification for Industry

Reduce emissions, maximise efficiency: With our custom-engineered exhaust air purification solutions, you achieve these goals and meet all regulatory requirements.

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55

+

Years

1750

+

Exhaust Air Treatment Systems

Industrial air pollution control encompasses technologies designed to remove pollutants from exhaust air streams generated during manufacturing processes. Depending on the industry and application, these pollutants may include volatile organic compounds (VOCs), odours, dust, acids, alkalis, or other harmful substances. The objective is to reduce emissions, comply with environmental regulations, and support energy-efficient production processes.

Drawing on decades of experience, we develop tailored processes for the elimination of your pollutants – depending on factors such as exhaust air volume, gas type and available space. This gives you exactly the solution your production environment requires, all from a single source. 

Which pollutants are removed by industrial exhaust air treatment systems?

Industrial exhaust air streams can contain a variety of pollutants depending on the production process. These include volatile organic compounds (VOCs), odorous substances, solvents, dust, acids, alkalis and other gaseous emissions. The aim of exhaust air treatment is to reliably reduce these pollutants, ensure compliance with regulatory emission limits and minimise environmental impact. The selection of the most suitable treatment technology depends on factors such as the type of pollutant, concentration, air volume and specific operating conditions.

Exhaust Air Treatment Integrated into Your Production Process

Industrial exhaust air must comply with strict statutory requirements in many countries. However, standard products are often insufficient for legally compliant and economically sound air pollution control – the operational requirements of individual companies differ too greatly. That is why Eisenmann Environmental Technology delivers tailored solutions designed around your specific process conditions..

Benefit from a highly efficient exhaust air treatment system that enables you to:

  • comply with all statutory emission limits
  • reduce operating costs
  • support compliance with environmental requirements

Proven Methods of Exhaust Air Purification

These systems treat exhaust air streams with high solvent loads while recovering heat for your production.

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Process large volumes of exhaust air with low organic loads — at thermal efficiencies of up to 99 percent.

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This system converts large exhaust air streams with low solvent concentrations into small, highly concentrated air volumes.

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References

Exhaust air treatment of highly corrosive VOC-laden exhaust air from a wastewater treatment process using an RTO and scrubber system to comply with the latest emission regulations — replacing an existing activated carbon filter system.

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After 29 years of operation, the internals of an RTO were refurbished as part of a retrofit, making it fit for the future once again. The work was carried out within extremely confined spaces and under tight time constraints.

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As part of the goal to achieve CO₂ neutrality by 2023 for one of the largest players in this sector, we are engineering and supplying our regenerative exhaust air treatment system to replace the previously used direct exhaust air incineration via combustion chambers.

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How our service works

1. Input data
Submit your input data to us either via our form or have all information recorded in person by our service staff.

2. Requirements check
We verify what conditions must be met at the outlet of the exhaust air purification system in your company. The basis for this is the Technical Instructions on Air Quality (TA Luft) or other statutory, regulatory and internal specifications.

3. Concept study
Which system technology is right for your plant? We clarify this question with a well-founded concept study. Based on your production conditions, we capture all project details – from feasibility and risks to cost and schedule planning.

4. Permit documentation
We support you in preparing the required permit documentation.  

5. Basic design
Even before the contract is awarded, we provide you with a basic design specifying all requirements of your exhaust air purification system.

Capture your input data:
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6. Implementation
Once you have awarded us the contract, we build your exhaust air purification system according to plan.

7. Commissioning
We install your system on site and commission it. If you have any questions, we will of course be happy to answer them. 

8. After-sales service
Whether maintenance, repair or technical modifications: we are always available when you need our support. 
 

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Combinations required?
We design your custom solution

No matter how complex your requirements may be, our experienced team will find the right solution for you. Our experienced team will find the right solution for you. We combine regenerative and thermal oxidation systems (RTO and TO systems) with additional systems as required – so that your company achieves optimum results in exhaust air purification. A basic preliminary selection can be taken from our comparison of exhaust air purification systems.

Comparison of exhaust air treatment systems:
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Technical examples:

  • RTO system with downstream DeNOx unit for nitrogen oxide reduction in the clean gas
  • RTO system with downstream scrubber for chloride reduction in the clean gas
  • For high exhaust air concentrations: hot gas discharge from the RTO combustion chamber with utilisation of waste heat for thermal oil generation
  • TO system with downstream thermal oil or hot water system for heat recovery
  • TO system with downstream catalyst for CO reduction
  • Adsorption rotor (ADR) for concentration of low-loaded exhaust air – with oxidation in RTO or TO system

Want expert advice?

Simply contact us by phone or in writing. We will be happy to inform you about your options for exhaust air purification and develop your optimal solution.

Frequently asked questions about Exhaust Air Treatment

Which exhaust air treatment technology is the right choice for my process?

The selection of the most suitable exhaust air treatment technology depends on a variety of factors, including the type of pollutant, pollutant concentration, exhaust air volume, temperature and the required emission limits. Depending on the application, thermal oxidation systems, adsorption systems or combinations of multiple technologies may provide the most economical solution. Eisenmann Environmental Technology evaluates the specific process conditions and develops a suitable system concept based on the individual requirements.

How can I reduce the operating costs of an exhaust air treatment system?

The operating costs of an exhaust air treatment system are influenced by energy consumption, maintenance requirements and the overall system design. The use of energy-efficient technologies, heat recovery and an application-specific system design can often significantly reduce ongoing operating costs. A key factor is ensuring that the system is optimally matched to the respective production process.

Can an existing exhaust air treatment system be modernised?

Many existing exhaust air treatment systems can be technically and energetically upgraded through retrofit measures. Depending on the condition of the system, components can be replaced, energy efficiency can be improved, and new emission requirements can be implemented. As a result, the service life and performance of the system can often be significantly increased.

What does an exhaust air treatment system cost?

The cost of an exhaust air treatment system depends on factors such as exhaust air volume, pollutant composition, treatment technology, heat recovery requirements and individual project specifications. A general cost estimate is therefore not possible. However, based on the relevant process data, a reliable technical and economic assessment can already be carried out at an early stage of the project.

Is heat recovery worthwhile for an exhaust air treatment system?

In many applications, heat recovery as part of an exhaust air treatment system can be highly beneficial. The recovered heat can, for example, be used for hot water generation, steam generation or thermal oil systems. This helps reduce energy costs and enables more efficient use of available resources. Whether and to what extent heat recovery is economically viable always depends on the specific process conditions.

How do I find the right supplier for an exhaust air treatment system?

In addition to the actual treatment technology, experience, engineering expertise and a comprehensive service offering are key selection criteria. It is important that the supplier understands the specific production processes and designs the system to meet the individual requirements of the operation. For example, Eisenmann Environmental Technology brings experience from more than 1,750 exhaust air treatment systems and supports projects from the initial concept study through to after-sales service.