场地土壤镉污染排放清单与溯源——以铜冶炼厂为例

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Abstract This study took a copper smelting plant in East China as an example, and used the “four emission pathways” functions to quantitatively describe the flux of Cd entering soil through “waste gas deposition, wastewater discharge, solid waste leaching, and run-off and leakage”. Combining the waste gas deposition model (AERMOD), the distribution of Cd carried by waste gas was calculated inside and outside the site boundary, and the contribution of each pathway to soil Cd pollution in the site was clarified. The results indicated that during the production period from 2000 to 2002, Cd was mainly emitted through waste gas deposition (1411kg, 50.05%) and solid waste leaching (1327kg, 47.05%), while the impact of wastewater and run-off as well as leakage pathways was small (a total of 81.74kg, 2.90%). However, only 0.68kg Cd in the waste gas was deposited inside the site, which only account for 0.05% of the overall Cd pollution in the soil of this site, while soil Cd in the site was mainly contributed by the solid waste leaching pathway. The spatial discharge inventory showed that soil Cd pollution was mainly distributed in production areas such as the stacking area and waste gas treatment area. The research results have important significance for strengthening the fine source control of the smelting industry, and the method proposed in this article can be extended to the source analysis of other industries and multiple pollutants.

Key words： soil cadmium pollution waste gas deposition model solid waste leaching spatial discharge inventory source management and control

Received: 13 January 2024

PACS:

X53

Corresponding Authors: 赵玲,研究员,wszhaoling@sjtu.edu.cn E-mail: wszhaoling@sjtu.edu.cn

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	SHENG Yi
	XUE Wei-zhen
	YING Di-wen
	WU Jun
	LI Ye
	SHI Pei-li
	ZHAO Ling

Cite this article:

SHENG Yi,XUE Wei-zhen,YING Di-wen等. Constructing soil cadmium discharge inventory for source analysis—a case study in copper smelter[J]. CHINA ENVIRONMENTAL SCIENCECE, 2024, 44(8): 4462-4474.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2024/V44/I8/4462

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