存余垃圾中废旧塑料性能演变及资源转化探讨

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Abstract This paper analyzed aged refuse components of landfills in different regions and characteristics variation of waste plastic in aged refuse, and found that plastic account for a relatively high proportion of aged refuse. When the landfill time is less than 7years, waste plastic’ mechanical and thermal properties are basically the same as those of the original waste plastic that have not been landfilled, so it has higher resource attributes. However, due to the high contamination characteristics of waste plastic in aged refuse, it is difficult to achieve direct high-value utilization. The article further analyzed the existing domestic cleaning and upgrading and treatment technologies of waste plastic, and aiming at the characteristics of waste plastic in aged refuse, a new applicable cleaning and high-value technology route combining multi-effect combined cleaning technology and direct extrusion molding technology was proposed.

Key words： aged refuse waste plastic component analysis cleaning technology reutilization

Received: 26 May 2020

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X705

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	Articles by authors
	GENG Xiao-meng
	ZHAO You-cai
	XIA Min
	ZHOU Hai-yan
	ZHOU Tao

Cite this article:

GENG Xiao-meng,ZHAO You-cai,XIA Min等. Characteristics variation and reutilization technology of waste plastics in aged refuse[J]. CHINA ENVIRONMENTAL SCIENCECE, 2021, 41(1): 273-278.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2021/V41/I1/273

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