Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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An Economic Analysis Study of Recycling PET·OPP Laminated Film Waste Generated during DECO Film Manufacturing

DECO 필름 제조시 발생하는 PET·OPP 합성 폐필름 재활용의 경제성 분석 연구

  • Mi Sook Park (Program in Circular Economy Environmental System, Inha University) ;
  • Da Yeon Kim (Program in Circular Economy Environmental System, Inha University) ;
  • Soo Jin Yang (Program in Circular Economy Environmental System, Inha University) ;
  • Seong You Lee (Program in Circular Economy Environmental System, Inha University) ;
  • Chun San Kim (Program in Circular Economy Environmental System, Inha University) ;
  • Ok Jin Joung (JINYOUNG Co., Ltd.) ;
  • Yong Woo Hwang (Department of Environmental Engineering, Inha University)
  • 박미숙 (인하대학교 순환경제환경시스템전공) ;
  • 김다연 (인하대학교 순환경제환경시스템전공) ;
  • 양수진 (인하대학교 순환경제환경시스템전공) ;
  • 이성유 (인하대학교 순환경제환경시스템전공) ;
  • 김춘산 (인하대학교 순환경제환경시스템전공) ;
  • 정옥진 ((주)진영) ;
  • 황용우 (인하대학교 환경공학과)
  • Received : 2023.03.29
  • Accepted : 2023.05.08
  • Published : 2023.06.30
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Abstract

The treatment of waste plastic has primarily been entrusted to small companies, which has resulted in challenges in obtaining an accurate overview of the current state of affairs and ensuring profitability. Consequently, despite the presence of recycling technology, their practical application has proven to be challenging. In this study, as part of the waste plastic material recycling plan, it is assumed that the PET/OPP laminated waste film is peeled off at the waste film generation site for the second use. The recycling rate of PET/OPP delaminated waste film is assumed to be 2%, 10%, and 30% referring to the figures suggested by "Life-cycle Post Plastic Measures" from the Korean government. In this study, a physical separation method was developed as a recycling approach for waste PET. A result of cost-benefit analysis was conducted to evaluate the economic viability of the recycling process based on changes in the recycling rate. The findings indicated that a recycling rate of waste PET was 30% or higher resulted in a cost-benefit ratio (Benefit-cost ratio, BCR) of 1.32, exceeding the threshold of BCR ≥1, which is considered to meet the minimum requirement for cost-benefit balance. As the government's allocation ratio and unit price are expected to increase in the future, the cost-benefit ratio is expected to increase further. This case is expected to serve as a pilot initiative for waste PET recycling and foster profit creation for businesses in similar industries.

폐플라스틱에 대한 국가 간 수출입 제한에 따라, 폐플라스틱의 국내 처리 및 재활용 방안을 모색할 필요성이 커지고 있다. 본 연구에서는 국내 A 기업의 폐필름 발생 현황 및 운영 정보를 참고하여 가구 표면 마감용 sheet 및 edge 제조시 발생하는 PET·OPP 합성 폐필름의 재활용사업에 대한 비용 편익을 분석하였다. 폐플라스틱 처리는 그간 영세업체에 맡겨져 현황 파악이 어렵고 수익성 담보가 되지 않아, 재활용 기술이 있더라도 활용되기에 어려움이 따랐다. 본 연구에서는 폐플라스틱 물질 재활용 방안의 하나로써, 폐필름 발생 사업장에서 PET·OPP 합성 폐필름을 박리하여 폐PET 재활용이 이루어지는 것으로 가정하되, 재활용 비율은 정부가 「전주기 탈 플라스틱 대책」에서 제시한 수치를 활용하여 2%, 10%, 20%, 30% 재활용할 경우 비용편익을 분석하였다. 본 연구에서는 폐PET 재활용 방안으로 물리적 박리 기술이 도입되는 것으로 가정하여 폐PET 재활용 비율에 따른 비용편익분석을 수행하였다. 그 결과 폐PET의 재활용 비율이 30% 이상일 경우에만, 비용 편익비율(Benefit-cost ration, BCR)이 BCR ≥1 에 해당하여 최소비용 편익비율을 충족하는 것으로 나타났으며 이 때, BCR 값은 1.32였다. 향후 정부의 지원금 할당비율과 단가가 상향될 것으로 예상됨에 따라 비용 편익비율은 더욱 높아질 것으로 사료된다. 해당 사례는 유사 업종의 사업장에 폐PET 재활용 및 수익 창출을 위한 시범 Case가 될 것으로 기대된다.

Keywords

Acknowledgement

이 논문은 2023년도 정부(산업통상자원부)의 재원으로 한국산업기술진흥원의 지원을 받아 수행된 연구임(P0008421, 2023년 산업전문인력역량강화사업). 이 논문은 2023년도 정부(산업통상자원부)의 재원으로 한국에너지기술평가원의 지원을 받아 수행된 연구임(2024000000420, 순환자원 분야 글로벌 인재양성).

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