A comprehensive approach to physical recycling of hazardous waste HDPE industrial drums: Overcoming challenges in safety and foam interference

被引：0

作者：

Dong, Lipeng ^{[1
,2
]}

Dong, Chan ^{[3
]}

Zhi, Wenwu ^{[4
]}

Zhang, Pei ^{[5
]}

Li, Weijun ^{[6
]}

Gu, Bo ^{[2
]}

机构：

[1] Sichuan Univ, Polymer Res Inst, Chengdu 610065, Peoples R China

[2] Natl Engn Res Ctr WEEE Recycling, Jingmen 448124, Hubeit, Peoples R China

[3] Ningbo Univ, Fac Informat Sci & Engn, Ningbo 315000, Peoples R China

[4] Wenzhou Environm Dev & Urban Solid Waste Comprehen, Wenzhou 325000, Peoples R China

[5] Zhengzhou Univ Aeronaut, Sch Informat Management, Zhengzhou 450015, Peoples R China

[6] Sun Yat Sen Univ, Sch Mat Sci & Engn, Guangzhou 510275, Peoples R China

来源：

CHEMICAL ENGINEERING JOURNAL | 2024年 / 497卷

关键词：

Waste HDPE industrial drums; Physical recycling; Foams elimination; Static mixer; Flow field simulation;

D O I：

10.1016/j.cej.2024.154502

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The regeneration of hazardous waste plastics are prerequisites for the sustainable development, and treatment of waste high density polyethylene (HDPE) industrial drums poses a significant challenge in the field of waste plastic recycling. In this study, a multi-step collaborative system was established for the decontamination and classification process of hazardous waste industrial drums. The yield of recycled HDPE particles exceeds 80 wt%. Through multiple experimental verifications, the optimal addition amount of antifoaming agent is 0.6 wt%, achieving the best balance between antifoaming effect and consumption. The motion process of antifoaming agent microdroplets in a static mixer was simulated. And also, through large-scale statistical analysis, the stability and reliability of physical properties and environmental safety of recycled HDPE particles were verified, supporting their reuse in various fields. In sum, this study proposes a feasible physical recycling strategy for hazardous waste HDPE industrial drums, and provides basic data from industrial practice and technical insights.

引用

页数：8