title: A study on removal of elemental mercury in flue gas using fenton solution.
abstract: A novel technique on oxidation-separation of elemental mercury (Hg(0)) in flue gas using Fenton solution in a bubbling reactor was proposed. The effects of several process parameters (H2O2 concentration, Hg(0) inlet concentration, Fe(2+) concentration, solution temperature, solution pH, gas flow) and several flue gas components (NO, SO2, O2, CO2, inorganic ions and particulate matters on Hg(0) removal were studied. The results indicate that H2O2 concentration, Fe(2+) concentration, solution pH and gas flow have great effects on Hg(0) removal. Solution temperature, Hg(0), NO, SO2, CO3(2-) and HCO3(-) concentrations also have significant effects on Hg(0) removal. However, Cl(-), SO4(2-), NO3(-), O2 and CO2 concentrations only have slight effects on Hg(0) removal. Furthermore, reaction mechanism of Hg(0) removal and simultaneous removal process of Hg(0), NO and SO2 were also studied. Hg(0) is removed by oxidation of OH and oxidation of H2O2. The simultaneous removal efficiencies of 100% for SO2, 100% for Hg(0) and 88.3% for NO were obtained under optimal test conditions. The results demonstrated the feasibility of Hg(0) removal and simultaneous removal of Hg(0), SO2 and NO using Fenton solution in a bubbling reactor.
authors: School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
authors: Yangxian
authors: Y
authors: Liu
authors: School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
authors: Yan
authors: Y
authors: Wang
authors: School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
authors: Qian
authors: Q
authors: Wang
authors: School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
authors: Jianfeng
authors: J
authors: Pan
authors: Jiangsu Province Special Equipment Safety Supervision Inspection Institute (Branch of Wuxi), Wuxi 214000, China.
authors: Yongchun
authors: Y
authors: Zhang
authors: School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China.
authors: Jianfei
authors: J
authors: Zhou
authors: Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, Southeast University, Nanjing 210096, China.
authors: Jun
authors: J
authors: Zhang
mesh_terms: D005290:Ferric Compounds / Q000737:chemistry; D005740:Gases / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry; D006863:Hydrogen-Ion Concentration; D008628:Mercury / Q000302:isolation & purification*; D010084:Oxidation-Reduction; D012996:Solutions / Q000737:chemistry*; D013696:Temperature
chemical_list: D005290:Ferric Compounds; D005740:Gases; D012996:Solutions; D006861:Hydrogen Peroxide; D008628:Mercury
keywords: Bubbling reactor; Elemental mercury; Fenton solution; Flue gas; Simultaneous removal