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Resource Circulation Plan using Material Flow Analysis of Waste Metals of Cobalt and Palladium

코발트와 팔라듐 폐금속자원의 흐름분석을 통한 자원순환 활성화 방안

  • 이희선 (한국환경정책.평가연구원) ;
  • 이정민 (한국환경정책.평가연구원) ;
  • 이소라 (한국환경정책.평가연구원)
  • Received : 2017.08.29
  • Accepted : 2017.12.18
  • Published : 2018.02.28

Abstract

The rapid increase in the consumption of products that contain rare metals has highlighted the importance of recycling and recovering resources from these products when they enter the waste stream. Among various metal resources that can be recovered, this study analyzes the waste streams of cobalt and palladium to determine how their waste resource circulation can be improved at each stage of the waste stream. The findings of this study point to improvements and strategies that can be made at individual stages. First, at the discharge/import stage, the implementation of tariff quotas for specific recycled metal resources is suggested to allow the systemic categorization of waste metals as resources. At the collection/discarding stage, a major problem is the instability in the supply of scrap metals, which may be better managed by changing the bidding process for the scrap metals. At the pretreatment stage, possible areas for improvement are uncovered concerning technical areas, such as technological development and improving the efficiency of material recycling, as well as policy-wise, for instance, expanding the regulation for manufacturers to produce products that are designed to facilitate resource recovery, increasing incentive for closed recycling, and refining the guidelines and standards for recycling. At the resource recovery stage, as the waste metal recycling industry consists of businesses that vary in size, policies to promote cooperation and coexistence between large and smaller enterprises will benefit the industry in the long-run. Lastly, at the product production/export stage, a tariff on exporting waste resources that contain cobalt and palladium will help control the amount of waste metals that are shipped abroad.

희유금속이 포함된 제품의 소비 급증으로 이를 재활용을 통해 자원화하는 것이 매우 중요한 이슈로 떠오르고 있다. 본 연구에서는 폐금속자원 중 코발트와 팔라듐의 폐자원흐름분석을 통해 자원순환 활성화 방안을 각 단계별로 모색하였다. 자원순환 활성화를 위해서 배출/수입단계에서는 대상금속이 포함된 폐기물을 자원으로 분류하는 것이 필요하며, 해당 폐금속자원에 대해 할당관세를 적용할 것을 제안하였다. 수거/폐기단계의 가장 큰 문제는 스크랩 원료 확보의 불안전성으로, 이를 해결하기 위해 현재의 입찰 시스템 개선과 같은 수급안정화 방안의 모색이 필요하다. 전처리 단계에서는 기술 개발 지원, 물질재활용 효율 향상 방안 등의 기술적 부분과 친환경 설계 의무 강화, 클로즈드 리사이클링에 대한 인센티브 부여, 재활용 방법과 기준의 강화 등 제도적 개선이 추진되어야 할 것이다. 자원회수 단계에서는 대기업과 중소기업의 경쟁력 확보를 위해 대 중소기업 상생방안이 마련되어야 할 것이다. 마지막으로 제품생산/수출단계에서는 폐금속자원의 국외 반출량 억제를 위해 코발트와 팔라듐이 포함된 폐자원 수출에 대한 관세를 부과하여야 할 것이다.

Keywords

References

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  1. 유럽, 일본, 미국의 폐기물 및 재활용 현황 vol.30, pp.1, 2021, https://doi.org/10.7844/kirr.2021.30.1.92