Comprehensive evaluation on the typical utilization and disposal processes for resin powder from waste printed circuit boards by analytic network process

doi:10.16085/j.issn.1000-6613.2023-0585

Abstract

Abstract:

Faced with the ever-increasing generation of waste printed circuit boards (WPCBs), waste resin powder obtained through mechanical and physical processes can cause a slew of issues, including resource waste and secondary contamination if not properly utilized and disposed. Thus, it is urgent to comprehensively evaluate the typical existing technologies for waste resin powder from WPCBs. This work constructed a network hierarchy relationship from five aspects, including resource, environment, economy, technology and society, to determine the linkage and feedback between the guidelines and indicators. Then, the ranking of the advantages and disadvantages towards three typical utilization and disposal technologies for waste resin powder from WPCBs, including landfill, incineration and mechanical processes, by a comprehensive evaluation method based on analytic network process (ANP) combined with expert scoring. It was found that the mechanical process could achieve the highest comprehensive level with excellent performance from the environmental, resourceful and economic criteria. Finally, the evaluation model developed in this study was applied to conduct a comprehensive evaluation in terms of criteria and indicators by taking a resource recycling enterprise in Suzhou as an example, and the validity of the established model was confirmed. The findings and conclusions were expected to provide theoretical basis and reference for the selection of technical routes for the industrial utilization and disposal of waste resin powder from WPCBs.

Key words: waste printed circuit boards (WPCBs), waste resin powder, utilization and disposal, analytic network process, comprehensive evaluation

摘要：

面对产量快速增长的废电路板（WPCBs），通过机械物理等方法得到的废树脂粉若不能妥善利用处置会造成资源浪费和二次污染等一系列问题，亟须对现有WPCBs树脂粉典型利用处置技术进行综合评价。本研究运用基于网络层次分析法结合专家打分的综合评估方法，从资源、环境、经济、技术和社会五个方面构建网络层次关系，以确定其准则和指标间的联系与反馈，同时对WPCBs树脂粉三种典型利用处置技术填埋、焚烧和物理法进行优劣排序。研究结果表明，物理法以优异的环境、资源和经济准则获得最高的综合评价水平。最后以苏州某资源再生利用企业为例，应用本研究建立的评价模型对其开展在准则和指标方面的综合评价，验证了该模型的有效性，以期为WPCBs树脂粉工业化利用处置技术路线选择提供理论依据和参考。

关键词: 废电路板, 废树脂粉, 利用处置, 网络层次分析, 综合评价

CLC Number:

ZONG Yuhang, CHI Yaxin, ZHANG Xihua, WANG Zhaolong, ZHENG Yang, JIANG Yongfang. Comprehensive evaluation on the typical utilization and disposal processes for resin powder from waste printed circuit boards by analytic network process[J]. Chemical Industry and Engineering Progress, 2024, 43(4): 2117-2125.

宗宇航, 迟亚欣, 张西华, 王兆龙, 郑洋, 江永方. 基于网络层次分析法的废电路板树脂粉典型利用处置技术综合评价[J]. 化工进展, 2024, 43(4): 2117-2125.

Figures/Tables 9

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n	R.I.
1	0
2	0
3	0.58
4	0.90
5	1.12
6	1.24
7	1.32
8	1.41

n	R.I.
1	0
2	0
3	0.58
4	0.90
5	1.12
6	1.24
7	1.32
8	1.41

一级指标	相对权重	二级指标	聚类归一化	限制值
T₁	0.27391	T₁₁	0.51993	0.079766
T₁	0.27391	T₁₂	0.48007	0.073651
E₂	0.06766	E₂₁	0.15997	0.023138
		E₂₂	0.27966	0.040450
		E₂₃	0.56037	0.081053
R₃	0.12001	R₃₁	0.33102	0.055481
		R₃₂	0.50262	0.084241
		R₃₃	0.16636	0.027883
C₄	0.37632	C₄₁	0.48868	0.106907
C₄	0.37632	C₄₂	0.51132	0.111861
S₅	0.16210	S₅₁	0.08439	0.008702
S₅	0.16210	S₅₂	0.91561	0.094417

一级指标	相对权重	二级指标	聚类归一化	限制值
T₁	0.27391	T₁₁	0.51993	0.079766
T₁	0.27391	T₁₂	0.48007	0.073651
E₂	0.06766	E₂₁	0.15997	0.023138
		E₂₂	0.27966	0.040450
		E₂₃	0.56037	0.081053
R₃	0.12001	R₃₁	0.33102	0.055481
		R₃₂	0.50262	0.084241
		R₃₃	0.16636	0.027883
C₄	0.37632	C₄₁	0.48868	0.106907
C₄	0.37632	C₄₂	0.51132	0.111861
S₅	0.16210	S₅₁	0.08439	0.008702
S₅	0.16210	S₅₂	0.91561	0.094417

指标	T₁₁	T₁₂	E₂₁	E₂₂	E₂₃	R₃₁	R₃₂	R₃₃	C₄₁	C₄₂	S₅₁	S₅₂
T₁₁	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737	0.0737
T₁₂	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176	0.1176
E₂₁	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170	0.0170
E₂₂	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453	0.0453
E₂₃	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056	0.1056
R₃₁	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597	0.0597
R₃₂	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313	0.1313
R₃₃	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389	0.0389
C₄₁	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555	0.1555
C₄₂	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586	0.1586
S₅₁	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083	0.0083
S₅₂	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884	0.0884