Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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A Study on Landfill Reduction Possibility by Characteristics of Industrial Thermal Treatment Residues

사업장 열적처리 잔재물의 특성에 따른 매립저감 가능성 연구

  • 이수영 (국립환경과학원 환경자원연구부) ;
  • 김규연 (국립환경과학원 환경자원연구부) ;
  • 전태완 (국립환경과학원 환경자원연구부) ;
  • 신선경 (국립환경과학원 환경자원연구부)
  • Received : 2019.02.27
  • Accepted : 2019.03.24
  • Published : 2019.03.30
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Abstract

The government is promoting recycling of waste resources through the enactment of Fundamental Law on Resource Circulation, the revision of the Wastes Control Act and zero-landfilling of untreated waste through improved processes such as recycling and diversification. As of 2015, the total amount of landfilled waste is 38,308 ton/day in Korea. The amount of landfilled waste from industrial sectors is 23,577 ton/day, accounting for 62 % of total landfilled waste. In the study, we investigated the characteristics of the thermal treatment residue among inorganic wastes and estimated the landfill reduction potential according to the relevant recycling criteria, which can go through recycling paths. As a result, it is estimated that about 5~42 % of the landfilled waste can be reduced in case mandatory recycling and landfill suppression policies such as recycling criteria for thermal processing residues and expansion of recycling obligation targets should be implemented. In order to minimize landfill disposal, it is necessary to expand the diversity of waste recycling type and the usage of recycled products.

정부는 '자원순환기본법'의 제정 및 '폐기물관리법'의 개정으로 폐자원의 재활용 방향성을 확대하고 재활용 다양화 등 처리개선을 통한 미처리폐기물의 매립제로화를 추진하고 있다. 2015년 기준 국내 전체 폐기물 매립처분량은 38,308 톤/일이며 그중 사업장배출시설계폐기물의 매립처분량은 23,577 톤/일로 매립폐기물 중 약 62 %를 차지하고 있다. 본 연구에서는 주로 유기성 및 가연성 물질의 연소 및 소각, 특정 성분의 추출 및 공정 구성에서 활용된 후 폐기처분되는 열적처리잔재물의 특성을 파악하여 재활용 관련 기준에 따른 매립저감 효과 예측 및 매립 처분 감소 가능량을 추산하여 고찰하였다. 그 결과, 사업장배출시설계폐기물의 매립처분량은 전체 매립량의 약 62 %로, 이 중 소각재, 연소재 등의 열적처리잔재물류가 45.1 %을 차지하고 있다. 2035년 국가 매립목표 1 % 달성을 위해 열적처리 잔재물이 매립억제 주요대상 폐기물로 판단되었다. 또한 열적처리 잔재물의 재활용 기준을 확대하고 매립억제 정책 추진 시 현재 매립처분량 대비 약 5~42 %의 매립감소가 가능할 것으로 추산되었으며 매립처분 최소화를 위해 폐자원 재활용 유형의 다양성 확대와 재활용 제품의 의무사용 확대 방안이 필요할 것으로 판단되었다.

Keywords

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Fig. 1. Sharing status of landfill industrial waste.

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Fig. 2. Results of moisture and LOI (%).

Table 1. Classification of Samples in the study

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Table 2. Current Status of Inorganic Waste Management by the All-baro System (2015)

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Table 3. XRF Analysis Result of Industrial Thermal Treatment Residues (%)

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Table 4. Results of Heavy Metal Leaching and Contents Analysis Reference Review

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Table 5. Estimation of Landfill Reduction Potential

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Table 6. Review on Recyclability of Inorganic Wastes by Evaluation Criteria

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