Oxidation Removal of Elemental Mercury from Flue Gas by K₂S₂O₈

The important step for increasing gaseous elemental mercury (Hg⁰) removal in wet scrubber systems is altering the chemical form of the Hg⁰to a water-soluble oxidized species. This work focuses on the removal of elemental mercury from simulated flue gas by aqueous K₂S₂O₈in a bubble reactor. In the system of K₂S₂O₈oxidize Hg⁰, the reaction velocity of K₂S₂O₈and Hg⁰is soon. Reached a higher removal rate after 10min. Increase the concentration of K₂S₂O₈can remarkably improve the removal rate of Hg⁰to 85% With the rise of import mercury concentration has increased mercury removal rate to 89.5%.