Technical Papers
Nov 10, 2011

Absorption Behavior and Removal of Gaseous Elemental Mercury by Sodium Chlorite Solutions

Publication: Journal of Environmental Engineering
Volume 138, Issue 6

Abstract

The absorption behavior of Hg0 was studied experimentally by using sodium chlorite (NaClO2) as the absorbent in a bubble reactor. Primary influencing factors on the removal of Hg0 such as NaClO2 solution concentration, solution hydrogenion concentration (pH), reaction temperature, the concentration of Hg0, and other components in the flue gas, such as O2, SO2, and NO, were investigated. Approximately 65% removal of elemental mercury can be achieved under optimal experimental conditions. The removal mechanism of Hg0 was proposed by analyzing Hg2+ concentration in the spent absorption solution and comparing the electrode potentials between NaClO2 species and Hg2+/Hg0.

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Information & Authors

Information

Published In

Go to Journal of Environmental Engineering
Journal of Environmental Engineering
Volume 138Issue 6June 2012
Pages: 620 - 624

History

Received: Jul 17, 2010
Accepted: Nov 8, 2011
Published online: Nov 10, 2011
Published in print: Jun 1, 2012

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Authors

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Professor, School of Environmental Science & Engineering, North China Electric Power Univ., Baoding 071003, China (corresponding author). E-mail: [email protected]
Graduate Student, School of Environmental Science & Engineering, North China Electric Power Univ., Baoding 071003, China. E-mail: [email protected]
Xiao-ying Ma [email protected]
Lecturer, School of Environmental Science & Engineering, North China Electric Power Univ., Baoding 071003, China. E-mail: [email protected]

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