基于LCA的PET再生纺织品环境影响分析

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Abstract Based on the rational of life cycle assessment (LCA), this paper proposes to allocate the environmental impact exerted by PET recycled products otherwise wasted and calculate the environmental loads brought by the manufacturing process using recycling technology and original technology, through using the approach of economic value allocation and the cut-off principle. Moreover, this study conducts normalization and sensitivity analysis of LCA modeling for the manufacturing process. The results show that comparing with the original technology, the PET recycling technology can bring about a reduction of 1640kg of greenhouse gas emissions and 40400MJ of non-renewable energy. Besides, environmental indicators such as Human Toxicity Potential, Eutrophication Potential and Marine Aquatic Ecotoxicity Potential was decreased respectively. Among the six fabrication processes, in-situ reactive compatibilization had the greatest contribution to the total environmental loads, and the consumption of electricity and glycidyl methacrylate should be the key factors to improve.

Key words： life cycle assessment carbon emission reduction accounting PET textiles recycling and regeneration allocation based on economic values

Received: 08 March 2023

PACS:

X820.3

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	Articles by authors
	SUN Guang-ya
	WANG Ya-jun
	XU Tong-guang
	CAO Xin
	CHEN Qing-hua
	ZHUANG Ling-feng

Cite this article:

SUN Guang-ya,WANG Ya-jun,XU Tong-guang等. Environmental impact assessment of recycled PET textile using LCA methodology[J]. CHINA ENVIRONMENTAL SCIENCECE, 2023, 43(11): 6194-6203.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2023/V43/I11/6194

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