Wet scrubber

A scrubber is a wet abatement system used to contain odors and abate various types of chemical contaminants.

Air washing process

Odors abatement is performed by having polluting odorous elements go from a gaseous phase to a liquid phase and stabilize them into inactive odorless elements.

Washing towers are based on a liquid phase absorption. This takes place due to the introduction of adequate filling elements or exchange packages inside a washing room adequately rinsed using a watery solution under pressure.

All Labiotest systems include a series of automatisms and controls that do not require any action from operators during normal work.

Main advantages of wet scrubbers

  • High deodorizing efficiency for all water soluble substances having a strong chemical reactivity
  • No substitution of exhausted materials
  • Reduced surface
  • Low load losses
  • Good pre-treatment of biofilters and dry filtering systems
  • Possibility of completion with additional sections, such as Venturi tubes for dust removal or additional equipment, such as double-step washing towers
  • Possibility of a vertical or horizontal positioning according to necessities

Technical characteristics

The wet scrubber may be associated with other equipment for air / odor treatment to guarantee a high efficiency both from an analytical and olfactometric point of view.

Treatment flow-rate

From 300 to 90.000 m3/h

Work temperature

From -20° to +80°C

Structure material


Fan noisiness

From 65 to 82 dB(A) *

Absorption frequency

According to fan specifications


According to fan specifications

Load losses

10 - 60 mm c.a. *

Filtering material

Loose filling elements or structured material

Auxiliary equipment

Differential pressure probe, recirculation pump, dosing pump, pH - Orp electrodes, make-up liquid solenoid valve, over-flow, bottom unloading, inspections holes and demister.

*Depending on the specific project.

Synergy with other abatement equipment

Wet scrubbers may be associated with other equipment for air / odor treatment when the required efficiency rate is not obtainable with a single step process.

In any case, the definition of the type of approach (single or multiple step) for the process is determined by the nature of the emission problem, by project limitations and targets. Only a careful analysis of all this information permits Labiotest to elaborate the concrete proposal, which the company technicians will then implement.

Building into wet abatement systems traditionally proposed a further step of osmogenic barrier treatment, makes it possible to reach an abatement efficiency hardly obtainable with only one process.

All of Labiotest equipment is subject to constant technological upgrading and upgrading of materials.

Additives for wet scrubbers

It is possible to use some additives to increase wet scrubbers efficiency performances.

To have more information about it, contact us.