估算瑞典城市污水系统中化学物质和微塑料的化石碳贡献：一种基于模型的方法。
Estimating fossil carbon contributions from chemicals and microplastics in Sweden's urban wastewater systems: A model-based approach.
作者信息
Reppas-Chrysovitsinos Efstathios, Svanström Magdalena, Peters Gregory
机构信息
Division of Environmental Systems Analysis, Department of Technology Management and Economics, Chalmers University of Technology, Gothenburg, SE412 96, Sweden.
出版信息
Heliyon. 2024 Sep 12;10(18):e37665. doi: 10.1016/j.heliyon.2024.e37665. eCollection 2024 Sep 30.
The importance of including fossil carbon in greenhouse gas emission assessments from wastewater treatment plants (WWTPs) is highlighted in the 2019 Intergovernmental Panel for Climate Change (IPCC) guidelines revision and underpinned by an increasing number of experimental studies. The present study introduces a model-based approach to estimate fossil carbon flows within Sweden's urban wastewater system, employing data on chemical and polymeric material flows as a starting point. Our findings show that fossil carbon constitutes approximately 12-17 % of the total carbon emissions to sewer systems. This result aligns with experimental data, which shows fossil carbon contributions to WWTP influents ranging from 4 to 28 %. Our analysis further indicates that microplastics contribute about 13 % of the fossil carbon influx to Swedish WWTPs, while organic chemicals account for the remaining 83 %.
2019年政府间气候变化专门委员会（IPCC）指南修订中强调了在污水处理厂（WWTPs）温室气体排放评估中纳入化石碳的重要性，并且越来越多的实验研究也证实了这一点。本研究引入了一种基于模型的方法来估算瑞典城市污水系统中的化石碳流量，以化学和聚合材料流量数据为起点。我们的研究结果表明，化石碳约占排入下水道系统总碳排放量的12 - 17%。这一结果与实验数据相符，实验数据显示化石碳对污水处理厂进水的贡献范围为4%至28%。我们的分析进一步表明，微塑料对瑞典污水处理厂化石碳流入量的贡献约为13%，而有机化学品占其余的83%。
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