What is a Wet Scrubber?

A wet scrubber is an air pollution control device that uses water or liquid solution to remove particulate matter, acidic gases, and other harmful emissions from industrial flue gases. They are preferred in high-temperature and humid environments where dry filtration methods fall short.

How Does a Wet Scrubber Work?

The fundamental principle involves contacting contaminated gas with a liquid medium. During this contact, particulate matter and gaseous pollutants are captured by the liquid. The process follows these steps:

1. Gas Inlet: Contaminated gas from industrial processes is directed into the scrubber.
2. Liquid-Gas Contact: The gas intensely contacts the scrubbing liquid through a venturi throat, over packing material, or through spray droplets.
3. Pollutant Capture: Particulate matter adheres to liquid droplets while acidic gases are neutralized.
4. Separation: Clean gas passes through a mist eliminator before release, while contaminated liquid is directed to a treatment basin.

Types of Wet Scrubbers

1. Venturi Scrubber

Operates by passing high-velocity gas through a converging throat section, creating intense contact with the liquid. Achieves up to 99% particulate removal efficiency. Widely used in cement, iron-steel, and glass industries.

2. Packed Tower

A column filled with packing material where gas and liquid contact each other in counter-current flow. Provides high efficiency for absorption of acidic and basic gases including SO₂, HCl, NH₃, and H₂S.

3. Spray Tower

The simplest type where liquid is atomized through nozzles into fine droplets that contact the gas stream. Offers low pressure drop advantages.

4. Jet Scrubber

Systems where high-pressure liquid injection creates both gas suction and scrubbing action. No fan required, energy-efficient.

Industrial Applications

• Cement Industry: Raw mill and clinker cooler emissions
• Iron & Steel: Electric arc furnace and converter gases
• Chemical: Acid production facilities, reactive gas treatment
• Energy: Thermal power plant flue gas desulfurization (FGD)
• Glass Industry: Melting furnace emissions
• Mining: Crusher and screen particulate control

MDSJ Process (DUCON) Wet Scrubber Solutions

With over 30 years of DUCON experience, MDSJ Process designs and manufactures venturi scrubbers, packed towers, spray towers, and jet scrubber systems serving Turkey and international markets. We provide custom engineering analysis for each project to deliver the most efficient and economical solution.

Contact us for a free feasibility study and quotation.