IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Distribution and Fate of Mercury in Pulverized Bituminous Coal-Fired Power Plants in Coal Energy-Dominant Huainan City, China
Chen, Bingyu1,2; Liu, Guijian1,2; Sun, Ruoyu1
2016-05-01
Source PublicationARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY
Volume70Issue:4Pages:724-733
SubtypeArticle
AbstractA better understanding on the partitioning behavior of mercury (Hg) during coal combustion in large-scale coal-fired power plants is fundamental for drafting Hg-emission control regulations. Two large coal-fired utility boilers, equipped with electrostatic precipitators (ESPs) and a wet flue gas desulfurization (WFGD) system, respectively, in coal energy-dominant Huainan City, China, were selected to investigate the distribution and fate of Hg during coal combustion. In three sampling campaigns, we found that Hg in bottom ash was severely depleted with a relative enrichment (RE) index < 7 %, whereas the RE index for fly ash (9-54 %) was comparatively higher and variable. Extremely high Hg was concentrated in gypsum (a parts per thousand currency sign4500 ng/g), which is produced in the WFGD system. Mass balance calculation shows that the shares of Hg in bottom ash, fly ash, WFGD products (gypsum, effluents, sludge), and stack emissions were < 2, 17-32, 7-22, and 54-82 %, respectively. The Hg-removal efficiencies of ESPs, WFGD, and ESPs + WFGD were 17-32, 10-29, and 36-46 %, respectively. The Hg-emission factor of studied boilers was in a high range of 0.24-0.29 g Hg/t coal. We estimated that Hg emissions in all Huainan coal-fired power plants varied from 1.8 Mg in 2003 to 7.3 Mg in 2010.
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s00244-016-0267-7
WOS KeywordCOMBUSTION BY-PRODUCTS ; EMISSIONS ; SPECIATION ; ATMOSPHERE ; POLLUTION ; CHLORINE ; SELENIUM ; ELEMENTS ; IMPACT ; JAPAN
Indexed BySCI
Language英语
WOS Research AreaEnvironmental Sciences & Ecology ; Toxicology
WOS SubjectEnvironmental Sciences ; Toxicology
WOS IDWOS:000373646000010
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5751
Collection黄土与第四纪地质国家重点实验室(2010~)
Affiliation1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Crust Mantle Mat & Environm, Hefei 230026, Anhui, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China
Recommended Citation
GB/T 7714
Chen, Bingyu,Liu, Guijian,Sun, Ruoyu. Distribution and Fate of Mercury in Pulverized Bituminous Coal-Fired Power Plants in Coal Energy-Dominant Huainan City, China[J]. ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,2016,70(4):724-733.
APA Chen, Bingyu,Liu, Guijian,&Sun, Ruoyu.(2016).Distribution and Fate of Mercury in Pulverized Bituminous Coal-Fired Power Plants in Coal Energy-Dominant Huainan City, China.ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY,70(4),724-733.
MLA Chen, Bingyu,et al."Distribution and Fate of Mercury in Pulverized Bituminous Coal-Fired Power Plants in Coal Energy-Dominant Huainan City, China".ARCHIVES OF ENVIRONMENTAL CONTAMINATION AND TOXICOLOGY 70.4(2016):724-733.
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