Wet scrubbers are air purification devices designed to remove gaseous particulate contaminants (NOx, SOx, or other emissions from combustion systems) that harm the environment. According to air pollution control measures, it is required to remove these particulates to protect the receptors from the serious impacts of these gases on the health of humans and animals.
The majority of factories use wet scrubbers in combination with other air pollution control techniques to reach the successful air treatment of the flue gases. Besides the disposal of harmful gaseous emissions in the waste gas, the application of wet air scrubbers also includes removing of fine particulate pollutants from boiler ducts. The use of a special liquid (wet scrubber liquid) increases the efficiency of the scrubber’s efficiency and enables it to contact the waste gases.
A typical scrubber system has such a design that collected dirty particulate pollutants are directed into the wet scrubber’s liquid. Wet air scrubbers demonstrate higher efficiency in air treatment of both solid particulate matter and gaseous pollutants. It is necessary to pay careful attention to the following parameters when choosing the type of scrubber system: “characteristics of the particulate pollutants removed, the size of PM, the concentration of the emission in the flue gas, scrubber liquid, removal efficiency, and required space for the wet scrubber”.
The operating principle of wet air scrubbers is based on flue gas cooling, chemical injection, and proper filtering at the outlet of the exhaust stack to carry over the chemicals into the atmosphere. It should be noted that there are seawater scrubbers, freshwater scrubbers as well as hybrid scrubbers. Additionally, it is possible to distinguish all wet scrubbers based on their physical orientation at horizontal and vertical scrubbers.
In addition to their role in air pollution control, wet scrubbers also serve a function of heat recovery and its subsequent use in the process stream. The benefits of wet air scrubbers include:
- reduced space challenge;
- almost full removal of particulate pollutants;
- ability to remove numerous component emissions;
- scrubber flexibility to handle any gas temperature stream.
All scrubber systems can be classified into spray towers, venturi, and packed bed scrubbers. Air pollution is regarded as a result of most industrialized cities with power plant facilities because they produce combustion product gases like SO2, NOx, and PM predominantly and CO. Despite the numerous air treatment devices that have been proposed, wet air scrubbers remain the most efficient.
If you would like to make your contribution to improving air quality in order to provide air pollution control, Redwood Technology offers a cutting-edge Multi-Vortex scrubber. Multi-Vortex wet air scrubber could apply water contaminated with dust, sand, and even small rocks to capture particulate matter, different types of dust and some gases from the air. If you would like to buy Multi-Vortex wet air scrubber or have some questions, please contact us at info@optromix.com