数字农科院2.0

Carbon emission reduction through major e-waste recycling in China: Comprehensive assessment and trend analysis

文献类型： 外文期刊

作者： Shang, Min;Liu, Yi;Liu, Haisha;Yang, Zhijuan;Liu, Jingying;Chen, Jing;Zhang, Jingjing;Luo, Hongji;Cai, Yuan;Cai, Yu;Chen, Ying;Liu, Min

作者机构：

关键词： Electronic Waste;Recycling;Accounting Model;Comprehensive Assessment;Carbon Emission Reduction Characteristics

期刊名称： WASTE MANAGEMENT

ISSN： 0956-053X

年卷期： 2025 年 211 卷

页码：

收录情况： SCIE（2025版） ; ; EI（2025版）

摘要： Resource recycling effectively reduces greenhouse gas emissions from raw material extraction, thereby playing a crucial role in carbon emission reduction. This study adopted carbon footprint evaluation and emission factor methods to establish an approach and accounting model for carbon emission reduction from e-waste. The carbon emission reduction potential and characteristics of e-waste in China over the past decade were explored. The results indicated that from 2013 to 2022, the carbon emissions from e-waste recycling amounted to 1.459 x 104 kiloton (Kt), the baseline emissions and avoided carbon emissions reached 6.932 x 104 Kt, and the carbon emission reductions were 5.473 x 104 Kt. In 2022, the average carbon emission reduction factor for standardized e-waste recycling was 2.865 tCO2eq/t. The recycling of refrigerants, circuit boards, and metals was the main source of carbon emission reduction, contributing 40.7 %, 33.0 %, and 18.3 % of the total, respectively. Therefore, developing e-waste carbon emission reduction projects, and improving standardized e-waste recycling and disposal systems can effectively promote resource recycling and green development.

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