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Venturi Scrubber

venturi scrubber

Venturi scrubbers are wet scrubbers and are used when dry scrubbers are not suitable (e.g., for sticky, wet, or abrasive dust). In a Venturi scrubber, the contaminated air is brought into contact with a washing liquid (usually water). Here, the washing liquid is dispersed into the air stream via the Venturi effect (acceleration of the air stream through a narrowing of the cross-section). The air pollutants transition from the gas phase to the liquid phase. The washing liquid droplets laden with air pollutants can be separated from the air and collected in a basin due to inertia. In the basin, separation between dust and washing liquid occurs through sedimentation.

The operation of wet scrubbers with water is regulated by the 42nd Regulation for the Implementation of the Federal Immission Control Act (42nd BImSchV or “Legionella Regulation”). This entails various obligations for operators of such systems to protect against Legionella.

To protect your employees and the environment from harmful air pollutants, we offer you a Venturi scrubber system tailored to your individual needs. From small units to central large-scale systems, whether as a standalone solution or in combination with other processes, we are your competent partner and full service provider for exhausted air purification.



Designs and Characteristics

All plant components (pipework, vessels, electrical components, etc.) can be manufactured and supplied in the following materials:

  • Steel
  • Galvanized steel
  • Stainless steel (e.g., V2A)
  • Plastic (e.g., polypropylene (PP), polyethylene (PE), electrically conductive polyethylene)

For which applications is a Venturi scrubber suitable?

Venturi scrubbers are primarily used when dry separators are not suitable (e.g., for sticky, clogging, wet, or abrasive dusts). Simultaneous dust and gas removal is also possible.

What components make up the operating costs?

The operating costs of a wet scrubber primarily consist of electricity costs (mainly dependent on the fan’s power, as well as the pump’s power), maintenance costs, and the cost of consumables (e.g., washing liquid).

What is the difference between a Venturi scrubber and a nozzle tray scrubber?

In a Venturi scrubber, the liquid phase is dispersed into the gas phase. It is mainly suitable for dusts that are difficult to treat with dry separators, as well as for water-soluble gases. In a nozzle tray scrubber, the gas phase is dispersed into the liquid phase. This type primarily treats water-soluble gases, even over multiple separation stages. The nozzle tray scrubber can also be constructed as a chemical scrubber in plastic. The same applies to packed bed scrubbers.

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Didn’t find the product you were looking for or are you not sure which product best suits your needs? Then please contact us and let us find out together which solution best suits your application.

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