The air pollution control is considered to be today primary task that is required to be resolved. The exact issue is dangerous because air pollutants released during the burning of fuel fossils greatly influence human health, they excite a negative impact on air quality and the environment as a whole.

That is why the IMO’s regulations were adopted, and according to them, all the shipowners of open-loop scrubbing systems have to abandon from water waste discharge, consequently, they must change their air treatment device or find an alternative for the reduction of NOx air pollutants.

In order to ensure compliance with the IMO’s regulations, there are several ways of the issue resolving:

• the use of low sulfur fuel is the easiest way. It should be mentioned that virtually all ship engines can run on different fuel oils, however, their cost remains pretty high.
• Gas-fuelled engines have the added benefit of reducing both sulfur air pollutants and NOx emissions. Nevertheless, the mentioned air treatment technology requires higher capital investment because of expensive fuel storage and delivery system.
• Exhaust gas cleaning systems that include scrubbing systems. Scrubbers are widely used for providing air pollution control. The most of land-based systems apply dry scrubbers but wet air scrubbers are considered to be more efficient.

Two main types of scrubbers are divided: dry scrubbers and wet scrubbing systems. In order to remove SOx emissions, dry scrubbers use the method of passing the exhaust stream over calcium hydroxide, finally, forming gypsum that can be used later in numerous applications.

Despite the fact that dry scrubbing systems have simple design and installation requirements, however, their weight is heavy and a lot of space is required. Herewith, dry scrubbers produce no washwater. Wet air scrubbers, in their turn, pass the exhaust gases from oil-fired engines and boilers through seawater or a special solution.  

It should be noted that there are three design variations of wet scrubbing systems: open-loop, closed-loop, and hybrids. Moreover, there is no need for additional chemicals for seawater in open-loop scrubbers but nowadays wastewater storage is required because the use of open-loop scrubbing systems is banned in numerous countries.

Thus, closed-loop wet air scrubbers are considered to be most advantageous. If you search for the best air treatment device to improve air quality, you can buy a high-tech completely new type of wet scrubber – a Multi-Vortex wet air scrubber produced by Redwood Technology.

Redwood technology is a fast-growing vendor of wet air scrubbers. The multi-vortex scrubber can remove gas emissions, dust, vapors, and other pollutants from a gas stream. It is an innovative technology created to save water that makes it more cost-efficient and differs from other types of scrubbers.  If you have any questions or would like to purchase a multi-vortex wet air scrubber, please contact us at info@rdwd.tech