资源科学 ›› 2021, Vol. 43 ›› Issue (3): 626-636.doi: 10.18402/resci.2021.03.18

• 环境效应与调控 • 上一篇    

废弃电器电子产品回收利用的环境效益及空间格局

郭甲嘉(), 何宛谦, 靳敏()   

  1. 中国人民大学环境学院,北京 100872
  • 收稿日期:2020-09-29 修回日期:2021-03-13 出版日期:2021-03-25 发布日期:2021-05-25
  • 通讯作者: 靳敏
  • 作者简介:郭甲嘉,女,陕西汉中人,博士研究生,研究方向为资源与环境管理。E-mail: guojiajiajoy@126.com
  • 基金资助:
    中国人民大学科学研究基金(中央高校基本科研业务费专项资金资助)(18XNL015)

Environmental benefits of recycling waste electrical and electronic equipment and spatial distribution

GUO Jiajia(), HE Wanqian, JIN Min()   

  1. School of Environment and Resources, Renmin University of China , Beijing 100872, China
  • Received:2020-09-29 Revised:2021-03-13 Online:2021-03-25 Published:2021-05-25
  • Contact: JIN Min

摘要:

明晰废弃电器电子产品(Waste Electrical and Electronic Equipment, WEEE)回收处理的环境效益及其空间分布特征,可以促进回收处理体系的合理规划和布局。本文基于保有量系数法估算了充分规范回收处理和省际流动情景下2020年中国31个省份(不包括港澳台地区)WEEE回收处理量,测算了所产生的环境效益,并结合空间自相关方法分析了环境效益的空间分布特征。结果表明:①2020年WEEE回收处理实现节约原材料和能源7621.5万t、减少污染物排放18978.9万t、减少温室气体排放232.7万t;②WEEE回收处理的环境效益在空间上呈现“东强西弱”的总体格局;③WEEE回收处理的环境效益存在全局空间正相关,局部空间关联特征表现为“东部沿海高-高集聚”、“北部省份低-低集聚”、福建省和江西省低-高异常、四川省高-低异常的特征。④WEEE回收处理环境效益前5位中的广东、浙江和河南并未形成高-高集聚的空间特征。据此,提出完善正规高效的WEEE回收处理体系、从区域空间尺度对WEEE回收处理设施及能力进行布局、提高具有明显集聚优势省份的WEEE回收处理设施利用率、充分发挥环境效益较高省份带动辐射作用的政策建议。

关键词: 废弃电器电子产品, 回收处理, 环境效益, 保有量系数法, 空间自相关, 空间分布, 集聚

Abstract:

Investigating the environmental benefits of the recycling and disposal of waste electrical and electronic equipment (WEEE) and their spatial distribution characteristics can promote the reasonable planning of the recycling system. Based on a market penetration model, this study estimated the recycling capacity of WEEE in 31 provinces of China’s mainland in 2020 under the scenario of fully regulated recycling and interprovincial mobility and calculated the environmental benefits, and analyzed the spatial distribution characteristics of environmental benefits by using the spatial autocorrelation method. The results show that: (1) WEEE recycling can save 76.215 million tons of raw material and energy, reduce 189.789 million tons of pollutant emissions, and reduce 2.237 million tons of greenhouse gas emissions in 2020; (2) The environmental benefits of WEEE recycling show an overall pattern of “strong in the east and weak in the west”; and (3) There is a positive global spatial correlation between WEEE recycling and environmental benefits, and the local spatial correlation features are as follows: high-high agglomeration in eastern coastal areas, low-low agglomeration in northern provinces, low-high anomaly in Fujian and Jiangxi Provinces, and high-low anomaly in Sichuan Province. (4) Among the top five provinces for environmental benefits of WEEE recycling, Guangdong, Zhejiang, and Henan do not form a high-high agglomeration spatial feature. Based on this, the article put forward some policy recommendations, including improving the formal and efficient WEEE recycling system, planning the WEEE recycling system at the regional scale, increasing the utilization of WEEE recycling facilities in provinces with obvious agglomeration advantages, and giving full play to the leading and disseminating role of provinces with high environmental benefits.

Key words: waste electrical and electronic equipment, recycling and disposal, environmental benefits, market penetration model, spatial autocorrelation analysis, spatial distribution, agglomeration