文献类型：期刊文献

英文题名：Electrochemical removal of gaseous elemental mercury in liquid phase with a novel foam titanium-based DSA anode

作者：Yang, Jie[1];Wang, Qing[1];Zhou, Jiacheng[1];Shen, Qicheng[1];Cao, Limei[1,2];Yang, Ji[1,2]

机构：[1]East China Univ Sci & Technol, Sch Resources & Environm Engn, State Environm Protect Key Lab Environm Risk Asse, Shanghai 200237, Peoples R China;[2]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2020

卷号：250

外文期刊名：SEPARATION AND PURIFICATION TECHNOLOGY

收录：;EI(收录号：20202308784911);WOS:【SCI-EXPANDED(收录号:WOS:000552061600038)】；

基金：This research is based upon work supported by the National Natural Science Foundation of China (Project No. 21307032) and "the Fundamental Research Funds for the Central Universities." Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the authors and do not necessarily reflect the view of the supporting organizations.

语种：英文

外文关键词：Electrochemical removal; Gaseous elemental mercury(Hg-0); DSA; Ti/Sb-SnO2/PbO2

摘要：The dimensional stable Ti/Sb-SnO2/PbO(2)( )electrode was prepared by the impregnation method. To remove gaseous elemental mercury (Hg-0) from coal combustion, the study of Hg-0 oxidation was performed in a gas diffusion electrochemical reactor with the stainless steel mesh cathode and the Ti/Sb-SnO2/PbO2 anode. Hg-0 is oxidized into highly water-soluble oxidation states of mercury as a result of the loss of electrons on the anode, which can be removed later utilizing WFGD and other devices. By investigating the effects of applied voltage, the concentration and pH of the electrolyte, reaction temperature, flue gas flow and initial Hg-0 concentration on removal, the appropriate conditions for the experiment were obtained. At the pH of 3, the removal efficiency can reach over 90%, which is about 1.7 times the removal of a single foam Ti under the same conditions.