污染场地风险管控碳排放计算方法及案例分析

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Abstract The study adopted emission factor method and took a large closed agricultural pharmaceutical factory in Hebei as a case to calculate carbon emissions of risk control and management of contaminated site from four aspects: mechanical energy consumption, power, materials and transportation. The results showed that the net carbon sequestration of risk control and management in the case site within 5years was 113.56t, including 458.49t of total process carbon emissions and 572.05t of total carbon sequestration; Barrier measures and site survey activities were the most important carbon emission links, accounting for 36.78% and 34.12% of the total carbon emissions respectively, of which construction materials and construction machinery account for 97.88%; The risk control carbon emission intensity of unit contaminated soil were 2.54kg/m³, which had obvious low-carbon advantages compared with solidification stabilization (34.78kg/m³), ectopic thermal desorption (212.22kg/m³), chemical leaching (35.83kg/m³) and chemical oxidation (27.78kg/m³); The sensitivity of mechanical activities and barrier materials to carbon emission factors were the strongest. In the 95% confidence interval, the carbon emission of this part in the case fluctuated between 417.84t and 500.40t; Adopted more green and low-carbon barrier membranes, gave priority to the procurement and transportation of electrical driven mechanical equipment and localized materials, improved the proportion of renewable energy and green power input in monitoring equipment operation and maintenance, and increased the richness of ecological landscape, which were conducive to achieving the goal of low-carbon management of site risk control.

Key words： Low-carbon remediation sustainable risk control and management life cycle analysis Monte Carlo Simulation

Received: 10 December 2022

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	MENG Hao
	DONG Jing-qi
	ZHANG Hong-zhen
	XIAO meng
	LI Xiang-lan

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MENG Hao,DONG Jing-qi,ZHANG Hong-zhen等. Calculation method and case analysis of carbon emissions for risk control and management of contaminated sites[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(S1): 368-375.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/IS1/368

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