FLUE GAS DESULFURIZATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To reduce the volume and the area of an oxidation treatment tank by improving the oxidation rate in the oxidation treatment tank.SOLUTION: A flue gas desulfurization system 1 includes: a flue gas desulfurization apparatus 3 using sea water as an absorption liquid for absorbing sulfur oxides in an exhaust gas exhausted from a predetermined plant, and an oxidation treatment tank 4 for oxidizing sulfurous acids contained in the used sea water exhausted from this flue gas desulfurization apparatus, wherein an oxidation auxiliary agent is added to the sea water in a prior step of bringing the exhausted gas and the sea water into contact.