Laboratory Study on Mercury Release of the Gypsum from the Mercury Coremoval Wet Flue Gas Desulfurization System with Additives | |
Qingfeng Wang; Yue Liu; Zhongbiao Wu | |
2018 | |
Source Publication | Energy Fuels
![]() |
Volume | 32Issue:2Pages:1005-1011 |
Abstract | In this study, the mercury release of the gypsum from the mercury coremoval wet flue gas desulfurization (FGD) process with post-thermal treatment or open-stack disposal was investigated experimentally. The results indicated that the aqueous-phase oxidized mercury could be efficiently captured and stored in the solid-phase gypsum by using the additives like NaHS, DTCR, and TMT. However, it could be found that the thermal stability of the mercury species on the resulting gypsum decreased significantly under typical wallboard-manufacturing conditions. Especially, 92.8% of mercury was released from the DTCR-treated sample. The following thermal decomposition tests further confirmed this result. The mercury ions in DTCR-Hg compounds were linked to more sulfur atoms, which were ready to transfer electrons to nearby mercury ions during heat treatment, resulting in its lower stability. It could be also seen that the thermal stabilities of mercury species decreased with an increasing amount of additives. Moreover, the mercury leaching tests showed that additives addition could lead to an evident increase in the mercury leaching content, and the mercury leaching content increased on the order of Hg-TMT < beta-HgS < Hg-DTCR All these results suggested that more attention should be paid toward the mercury release during the post-treatment and disposal of wet FGD gypsum from the mercury coremoval wet FGD system by using additives. |
Indexed By | SCI |
Language | 英语 |
Document Type | 期刊论文 |
Identifier | http://ir.gyig.ac.cn/handle/42920512-1/8681 |
Collection | 矿床地球化学国家重点实验室 |
Affiliation | 1.Department of Environmental Engineering, Zhejiang University, Hangzhou 310058, P. R. China 2.State Key Laboratory of Ore Deposit Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, P. R. China 3.Department of Environmental Engineering, Zunyi Normal University, Zunyi 563006, P.R. China |
Recommended Citation GB/T 7714 | Qingfeng Wang;Yue Liu;Zhongbiao Wu. Laboratory Study on Mercury Release of the Gypsum from the Mercury Coremoval Wet Flue Gas Desulfurization System with Additives[J]. Energy Fuels,2018,32(2):1005-1011. |
APA | Qingfeng Wang;Yue Liu;Zhongbiao Wu.(2018).Laboratory Study on Mercury Release of the Gypsum from the Mercury Coremoval Wet Flue Gas Desulfurization System with Additives.Energy Fuels,32(2),1005-1011. |
MLA | Qingfeng Wang;Yue Liu;Zhongbiao Wu."Laboratory Study on Mercury Release of the Gypsum from the Mercury Coremoval Wet Flue Gas Desulfurization System with Additives".Energy Fuels 32.2(2018):1005-1011. |
Files in This Item: | ||||||
File Name/Size | DocType | Version | Access | License | ||
Laboratory Study on (1291KB) | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment