Experiments on and mechanism of simultaneous removal of Hg0, SO2 and NO from flus gas using NaClO2 solution

Experiments on the simultaneous removal of mercury (Hg0), sulphur dioxide (SO2) and nitric oxide (NO) from flue gas using sodium chlorite solution (NaClO2) were carried out in a bench-scale bubbling reactor. The effect of initial pH on Hg0 removal efficiency was investigated. The results show that t...

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Veröffentlicht in:Environmental technology. - 1993. - 30(2009), 3 vom: 03. März, Seite 277-82
1. Verfasser: Zhao, Yi (VerfasserIn)
Weitere Verfasser: Ma, Xiaoying, Liu, Songtao, Yao, Jie
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2009
Zugriff auf das übergeordnete Werk:Environmental technology
Schlagworte:Journal Article Air Pollutants Chlorides Sulfur Dioxide 0UZA3422Q4 Nitric Oxide 31C4KY9ESH Mercury FXS1BY2PGL chlorite Z63H374SB6
Beschreibung
Zusammenfassung:Experiments on the simultaneous removal of mercury (Hg0), sulphur dioxide (SO2) and nitric oxide (NO) from flue gas using sodium chlorite solution (NaClO2) were carried out in a bench-scale bubbling reactor. The effect of initial pH on Hg0 removal efficiency was investigated. The results show that the efficiency of Hg0 removal was higher in acid condition. The effect of the concentrations of SO2 and NO from simulated flue gas on Hg0 removal efficiency with NaClO2 solution was examined. The Hg0 removal efficiency can be significantly improved by adding NO to flue gas, when sufficient NaClO2 solution was available. In the experiment, an amount of NaClO2 was found to be consumed by SO2. The addition of SO2 to simulated flue gas did not significantly affect the efficiency of Hg0 removal. Moreover, under the acid condition, the simultaneous removal of Hg0, SO2 and NO indicated that NaClO2 solution was an excellent absorbent. Finally, the reaction mechanism between Hg0, SO2, NO and NaClO2 is discussed
Beschreibung:Date Completed 30.07.2009
Date Revised 20.11.2014
published: Print
Citation Status MEDLINE
ISSN:1479-487X
DOI:10.1080/09593330802573795