燃煤电厂大气汞及其他痕量元素排放标准研究

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Abstract In this study, the trace elements emission standards of coal-fired power plants (CFPPs) between China and developed countries and the emission status in Chinese CFPPs were systematically evaluated to explore the feasibility and recommendations for establishing standards in the future. Results indicated that fewer species of trace element pollutants were currently restricted in China, and the existing emission limit for the single element (mercury and its compounds, 30μg/m³) was relatively laxer compared with CFPPs in developed countries. Moreover, the stack concentration of mercury in most plants was lower than 10~15μg/m³, indicating the current emission standard has failed to play a viable role in limiting the atmospheric mercury emission from Chinese CFPPs. Therefore, we suggested that the current atmospheric mercury emission limit for Chinese CFPPs should be revised and emission limits for other toxic trace elements could be introduced when revised emission standards for coal-fired power plants in the future, to better protect the ecosystem and human health and promote the successful fulfil of the Minamata Convention on Mercury.

Key words： coal-fired power plants trace elements mercury emission standard current emission status ultra-low emission technology

Received: 04 September 2020

PACS:	X511
	X822

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	WANG Shu-min
	BAI Xiao-xuan
	SONG Chang
	ZHANG Yi
	GU Yong-zheng
	GUO Zhi-hui
	WU Bo-bo
	YU Xue-hai
	DUAN Lei
	TIAN He-zhong

Cite this article:

WANG Shu-min,BAI Xiao-xuan,SONG Chang等. Study of atmospheric trace elements emission standards for coal-fired power plants in China[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(4): 1949-1958.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I4/1949

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