폐 젤리충진 통신케이블 업사이클링 연구
Upcycling of Waste Jelly-Filled Communication Cables
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초록
폐 젤리충진 통신케이블로부터 고순도 구리회수를 위한 친환경 공정 및 장치 개발과 고부가 나노분말 제조까지의 업사이클링 공정을 위한 적용성 평가를 수행하였다. 고압분사 공정은 공업용수만을 용매로 사용한 친환경 고효율 기계적 방법으로써 전산유동해석을 통해 최적화하여 배치공정 장치를 제작, 실험적으로 검증하였으며 99.5% 이상의 높은 고순도 구리 회수율을 얻을 수 있었다. 재활용 구리의 고부가가치화를 위해 액중전기폭발법을 이용하여 나노분말을 제조하였으며, 이에 대한 기초적인 경제성 평가를 수행하였다.
Abstract
A feasibility test was carried out for upcycling of waste jelly-filled communication cables together with the development of environmentally friendly processes and equipments. High pressure water injection is proved to be an exceptionally environmentally friendly and highly efficient mechanical process. A batch-type cable barking equipment is designed and built on the basis of computational fluid dynamics modelling. It is optimized in terms of energy consumption and productivity with very high copper recovery of 99.5%. Copper nano-powder is prepared by an electrical wire explosion in ethanol media in order to improve the value of final products, and the preliminary economical assessment is also conducted.
참고문헌 (17)
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