Mercury emission and behavior in primary ferrous metal production

Fukuda, Naomichi; Takaoka, Masaki; Doumoto, Shingo; Oshita, Kazuyuki; Morisawa, Shinsuke; Mizuno, Toshiaki

doi:10.1016/j.atmosenv.2011.04.038

Cited by 31 publications

(24 citation statements)

References 6 publications

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“…Studies on atmospheric mercury emissions from major sources have been intensively carried out in the past several years due to the worldwide concern about mercury contamination (Strode et al, 2009;Li et al, 2009Li et al, , 2010Lin et al, 2010;Wu et al, 2010;Tian et al, 2010, Kocman andPacyna, 2011;Fukuda et al, 2011). Nonferrous metal smelting is believed to be one of the most significant anthropogenic mercury emission sources.…”

Section: Introductionmentioning

confidence: 99%

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Zhang

Song

et al. 2012

Atmos. Chem. Phys.

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Abstract. China is the largest anthropogenic mercury emitter in the world, where primary nonferrous metal smelting is regarded as one of the most significant emission sources. In this study, atmospheric mercury emissions from primary zinc, lead and copper smelters in China between 2000–2010 were estimated using a technology-based methodology with comprehensive consideration of mercury concentration in concentrates, smelting processes, mercury removal efficiencies of air pollution control devices (APCDs) and the application percentage of a certain type of APCD combinations. Our study indicated that atmospheric mercury emissions from nonferrous metal smelters in 2000, 2003, 2005, 2007 and 2010 were 67.6, 100.1, 86.7, 80.6 and 72.5 t, respectively. In 2010, the amounts of mercury emitted into atmosphere were 39.4 ± 31.5, 30.6 ± 29.1, and 2.5 ± 1.1 t from primary zinc, lead and copper smelters, respectively. The largest amount of mercury was emitted from the Gansu province, followed by Henan, Yunnan, Hunan, Inner Mongolia and Shaanxi provinces. Hg2+, Hg0 and Hgp emissions from zinc smelters were 25.6, 11.8 and 1.97 t, respectively. The emissions percentages of Hg2+ and Hg0 were almost the same from lead and copper smelters. The average mercury removal efficiency was 90.5 ± 52.5%, 71.2 ± 63.7% and 91.8 ± 40.7% in zinc, lead, and copper smelters, respectively.

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Section: Introductionmentioning

confidence: 99%

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Zhang

Song

et al. 2012

Atmos. Chem. Phys.

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“…Hg release rate (%) Zhang et al, 2015Fukuda et al, 2011 This S3 Table S2. Provincial crude steel productions and raw materials consumptions in 2015 2…”

Section: Processesmentioning

confidence: 99%

Supplementary material to "Updated atmospheric mercury emissions from iron and steel production in China during 2000–2015"

Wu¹,

Gao²,

Hao³

2017

Preprint

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“…Finally, the fly ash and reaction products fell into the bottom of the reaction tower for further processing, and the flue gas was detected or further treated. Desulfurization by the SDA method has always been characterized by its high efficiency and simple operation . Many studies have focused on the control of SDA industrial systems, while the effective removal of Hg by SDA system has not been reported yet, and the Hg removal mechanism has not been clearly explained …”

Section: Introductionmentioning

confidence: 99%

“…Desulfurization by the SDA method has always been characterized by its high efficiency and simple operation. 7 Many studies have focused on the control of SDA industrial systems, while the effective removal of Hg by SDA system has not been reported yet, and the Hg removal mechanism has not been clearly explained. 8 In addition, based on the experiments of desulfurization by the SDA method, the purification of Hg and the simultaneous removal of SO 2 and Hg by the SDA method were studied.…”

Section: Introductionmentioning

confidence: 99%

A novel semi‐dry method for the simultaneous removal of Hg and SO₂ using spray drying absorption method

et al. 2020

J of Chemical Tech & Biotech

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BACKGROUND A novel semi‐dry method called SDA (spray drying absorption) for the simultaneous removal of mercury (Hg0) and sulfur dioxide (SO2) have been proposed in this article, in which Hg0 was initially oxidized by gaseous oxidant (O3) and liquid oxidant (K2S2O8, H2O2, and NaClO2), after which SO2 and Hg2+ were absorbed by Ca(OH)2. RESULTS The effects on different process conditions and additives on Hg0 removal were explored at first, and the results indicated that the Hg removal efficiency could be improved by oxidizing or extending the residence time of the liquid phase reaction. When SO2 and Hg coexist in the atmosphere, additives including oxidants or composite additives were added into the mixed system, and the results indicated that the best removal efficiency of SO2 and Hg was about 99.5% and 51% respectively. CONCLUSION Since SO2 has good water solubility, it would affect the oxidation of Hg and the removal of Hg. When there was nitric oxide (NO) in the atmosphere, a new stable product was generated which contributed to the removal of Hg, and the removal efficiency of SO2 and Hg was about 99.5% and 57% respectively. © 2020 Society of Chemical Industry

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Mercury emission and behavior in primary ferrous metal production

Cited by 31 publications

References 6 publications

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Supplementary material to "Updated atmospheric mercury emissions from iron and steel production in China during 2000–2015"

A novel semi‐dry method for the simultaneous removal of Hg and SO₂ using spray drying absorption method

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Mercury emission and behavior in primary ferrous metal production

Cited by 31 publications

References 6 publications

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Update of mercury emissions from China's primary zinc, lead and copper smelters, 2000–2010

Supplementary material to &quot;Updated atmospheric mercury emissions from iron and steel production in China during 2000–2015&quot;

A novel semi‐dry method for the simultaneous removal of Hg and SO2 using spray drying absorption method

Contact Info

Product

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Supplementary material to "Updated atmospheric mercury emissions from iron and steel production in China during 2000–2015"

A novel semi‐dry method for the simultaneous removal of Hg and SO₂ using spray drying absorption method