Seawater FGD

Seawater FGD is a technology using alkali in the seawater to remove SO2 in the flue gas. A large amount of seawater is sprayed into the absorption tower to clean the flue gas, and SO2 is to be absorbed by the seawater. The treated gas will be discharged after the other two processes: mist removal by the demister and heating process by the heat exchanger. After mixing seawater absorbed SO2 with the original seawater, the mixed seawater will be processed by aeration tank to oxidize SO32- into SO42- with stable property, meanwhile the PH and COD values of the seawater will also be modified to meet the specification to be pumped back to the ocean.

The technology of seawater FGD is usually suitable for the power plant combusting low-sulfur coal along seaside and seawater will be used as coolant. 

The Working Process of Seawater FGD

Seawater Desalination Project 3D Drawing

Main features:

        （1）The working principle and working process is simple and the system can operate reliably. 

        （2）The impact on the environment can be eliminated to the best extent due to the abandonment of waste dump or waste landfill even without any equipment and relevant staff and transport.

        （3）The efficiency can be as high as 90% and the above with obvious environmental benefits and operational assurance;

        （4）Compared with the other technologies of FGD, the area occupied is the smallest.

        （5）Low capital and maintenance cost.