Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.5194/acp-17-10423-2017 |
Updated atmospheric speciated mercury emissions from iron and steel production in China during 2000-2015 | |
Wu, Qingru1,2,3; Gao, Wei1,2,3; Wang, Shuxiao1,2,3; Hao, Jiming1,2,3 | |
2017-09-06 | |
发表期刊 | ATMOSPHERIC CHEMISTRY AND PHYSICS
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ISSN | 1680-7316 |
EISSN | 1680-7324 |
出版年 | 2017 |
卷号 | 17期号:17 |
文章类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
英文摘要 | Iron and steel production (ISP) is one of the significant atmospheric Hg emission sources in China. Atmospheric mercury (Hg) emissions from ISP during 2000-2015 were estimated by using a technology-based emission factor method. To support the application of this method, databases of Hg concentrations in raw materials, technology development trends, and Hg removal efficiencies of air pollution control devices (APCDs) were constructed through national sampling and literature review. Hg input to ISP increased from 21.6 t in 2000 to 94.5 t in 2015. In the various types of raw materials, coking coal and iron concentrates contributed 35-46 and 25-32% of the total Hg input. Atmospheric Hg emissions from ISP increased from 11.5 t in 2000 to 32.7 t in 2015 with a peak of 35.6 t in 2013. Pollution control promoted the increase in average Hg removal efficiency, from 47% in 2000 to 65% in 2015. During the study period, sinter/pellet plants and blast furnaces were the largest two emission processes. However, emissions from roasting plants and coke ovens cannot be ignored, which accounted for 22-34% of ISP's emissions. Overall, Hg speciation shifted from 50/44/6 (gaseous elemental Hg (Hg-0)/gaseous oxidized Hg (Hg-II)/particulate-bound Hg (Hg-p)) in 2000 to 40/59/1 in 2015, which indicated a higher proportion of Hg deposition around the emission points. Future emissions of ISP were expected to decrease based on the comprehensive consideration crude-steel production, steel scrap utilization, energy saving, and pollution control measures. |
领域 | 地球科学 |
收录类别 | SCI-E |
WOS记录号 | WOS:000409464900003 |
WOS关键词 | FIRED POWER-PLANTS ; ANTHROPOGENIC SOURCES ; SPATIAL-DISTRIBUTION ; AIR-POLLUTANTS ; EAST-ASIA ; TRENDS ; COAL |
WOS类目 | Environmental Sciences ; Meteorology & Atmospheric Sciences |
WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/21728 |
专题 | 地球科学 |
作者单位 | 1.Tsinghua Univ, Sch Environm, Beijing 100084, Peoples R China; 2.Tsinghua Univ, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China; 3.State Environm Protect Key Lab Sources & Control, Beijing 100084, Peoples R China |
推荐引用方式 GB/T 7714 | Wu, Qingru,Gao, Wei,Wang, Shuxiao,et al. Updated atmospheric speciated mercury emissions from iron and steel production in China during 2000-2015[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2017,17(17). |
APA | Wu, Qingru,Gao, Wei,Wang, Shuxiao,&Hao, Jiming.(2017).Updated atmospheric speciated mercury emissions from iron and steel production in China during 2000-2015.ATMOSPHERIC CHEMISTRY AND PHYSICS,17(17). |
MLA | Wu, Qingru,et al."Updated atmospheric speciated mercury emissions from iron and steel production in China during 2000-2015".ATMOSPHERIC CHEMISTRY AND PHYSICS 17.17(2017). |
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