摘要
通过对全国范围内不同地域填埋场中存余垃圾组分含量以及存余垃圾中废旧塑料性能变化进行分析,发现存余垃圾中塑料占比较高,且填埋时间小于7a时,其力学及热学性能与未经填埋处理的原生废旧塑料性能基本无差异,具有较高的资源属性,但污染程度较高,难以直接进行高值化利用.文章进一步分析了国内现有清洁提质和处理处置技术,并针对存余垃圾中废旧塑料特性,提出一条由多效组合洁净技术与直接挤压成型工艺相结合的新型适用性清洁与高值化技术路线.
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.
作者
耿晓梦
赵由才
夏旻
周海燕
周涛
GENG Xiao-meng;ZHAO You-cai;XIA Min;ZHOU Hai-yan;ZHOU Tao(School of Environmental Science and Engineering,Tongji University,Shanghai 200092,China;Shanghai Institute of Pollution Control and Ecological Security,Shanghai 200092,China;Shanghai Environmental Sanitation Engineering Design Institute Co.Ltd.,Shanghai 200232,China;Shanghai Laogang Waste Disposal Co.,Ltd,Shanghai 201302,China)
出处
《中国环境科学》
EI
CAS
CSCD
北大核心
2021年第1期273-278,共6页
China Environmental Science
基金
国家重点研发计划项目(2018YFC1901401)。
关键词
存余垃圾
废旧塑料
组分分析
清洁提质
资源利用
aged refuse
waste plastic
component analysis
cleaning technology
reutilization
