Wet Scrubbing & Mixing Towers

Wet Scrubbing & Mixing Towers

Jet-mixing, cyclone hybrid, and spray towers for pretreatment—acid/alkali gases, sticky dust, and oil mist ahead of oxidation.

System fit

Where Wet Scrubbing fits

Wet scrubbing and mixing towers condition exhaust before oxidation or electrostatic stages. They remove acid/alkali gases, sticky dust, and coarse mist that would foul concentrators or oxidizers.

Best for

Pretreatment for explosive risk, sticky dust, acid/alkali gases

Wet Scrubbing & Mixing Towers equipment configuration
95% class
Typical removal

Pollutant and tower dependent

PP / 304 SS
Materials

Selected for chemistry

Pretreatment
Role

Often paired with downstream control

Process path

How the system works

Gas contacts spray or jet-mixed liquid for absorption and particle capture. Cyclone-hybrid designs add inertial separation for fibrous or sticky dust. Cleaned gas proceeds to zeolite, RTO, CO, or WESP as required.

  1. 01Gas enters the contact or high-energy mixing zone.
  2. 02Scrubbing liquid captures particulate or absorbs soluble gas.
  3. 03Cyclonic or inertial action improves separation where required.
  4. 04A demister controls droplet carryover before the next stage.
Wet Scrubbing & Mixing Towers process equipment view
Configuration guidance

Choose by process conditions

ConfigurationDescriptionBest fitSource metric
Jet-Mixing Two-Stage TowerHigh-energy gas-liquid mixing followed by separation in a compact two-stage body.Flammable-risk pretreatment, grinding, polishing, paint mist, and oil-fume particles.Project-specific
Cyclone Hybrid TowerCyclonic contact designed for sticky and fibrous dust with straightforward maintenance.Sticky particulate, textile-like fibers, and high-dust pretreatment.Project-specific
Spray ScrubberCounter-current spray absorption in PP or stainless construction.Acid or alkaline exhaust and general gas conditioning.Project-specific

Typical pollutants

  • Acid and alkaline gases
  • Sticky dust
  • Fibrous particulate
  • Paint mist and coarse oil mist

Engineering features

  • Recirculation and dosing options
  • Demister stages
  • Corrosion-resistant construction
  • Access for cleaning
  • Integration with WESP, zeolite, RTO, or CO

Selection cautions

  • Wastewater, chemical consumption, scaling, freezing, and droplet carryover must be addressed.
  • A scrubber does not replace downstream VOC oxidation where dissolved-gas removal is insufficient.
Engineering decision

What determines the final treatment train

Technology selection begins with process data. The same technology can require different pretreatment, materials, controls and maintenance provisions from one plant to another.

Information to confirm

  • Gas chemistry and required absorption/reaction
  • Airflow, inlet temperature, dust and mist loading
  • Liquid chemistry, pH/ORP control and make-up water
  • Wastewater treatment route and discharge constraints
  • Corrosion requirements, footprint and pressure-drop allowance

Typical system scope

  • Inlet quench, jet or packed contact stage as required
  • Recirculation tank, pump, chemical dosing and instrumentation
  • Mist eliminator and duct/fan interface
  • Materials selected for temperature and chemistry
  • Wastewater, sludge and maintenance access provisions

Selection boundaries

  • The treatment liquid is selected from the gas chemistry and operating target.
  • pH, ORP, liquid level, pressure drop and pump status are typical monitored points.
  • Scrubbers may be pretreatment, primary acid/alkali control or a polishing stage; the role must be defined.
  • Do not quote generic efficiency without the gas species, reagent and contact design.

Source basis: VOCs equipment source. Materials, reagent and performance are selected from the gas chemistry.

Technical FAQ

Selection questions

When is a wet scrubber used before VOC treatment?

It can cool or remove acid/alkali gas, soluble contaminants and certain mist/particulate so that the downstream adsorption or oxidation equipment is protected.

What happens to the scrubber liquid?

It is recirculated with controlled make-up and blowdown. The project must define chemical dosing, wastewater treatment and disposal responsibilities.

Equipment views

Wet Scrubbing & Mixing Towers view 1Wet Scrubbing & Mixing Towers view 2Wet Scrubbing & Mixing Towers view 3Wet Scrubbing & Mixing Towers view 4Wet Scrubbing & Mixing Towers view 5Wet Scrubbing & Mixing Towers view 6

Specify Wet Scrubbing for your plant

Performance depends on actual gas composition, inlet load, temperature and operating schedule. Share process data for a configuration review.

Pollutant chemistryAirflowTemperatureParticulate loadAvailable water and chemicalsWastewater constraints
Applications

Industries that utilize Wet Scrubbing