Comprehensive evaluation on the typical utilization and disposal processes for resin powder from waste printed circuit boards by analytic network process
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.
国家科技期刊平台
NSTL
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