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유기성 폐기물의 자원화 방법에 대한 경제성 평가

Economic Evaluation for Recycling of Organic Waste

  • 유혜영 (국립환경과학원 자원순환연구과) ;
  • 정다위 (국립환경과학원 자원순환연구과) ;
  • 윤철우 (국립환경과학원 자원순환연구과) ;
  • 강준구 (국립환경과학원 폐자원에너지연구과) ;
  • 박기학 ((주)에코피엔지) ;
  • 김기헌 (국립환경과학원 자원순환연구과) ;
  • 신선경 (국립환경과학원 자원순환연구과)
  • Yoo, Hye-Young (Resource Recirculation Research Division, National Institute of Environmental Research) ;
  • Chung, David (Resource Recirculation Research Division, National Institute of Environmental Research) ;
  • Yoon, Cheol-Woo (Resource Recirculation Research Division, National Institute of Environmental Research) ;
  • Kang, Joon-Gu (Waste-to-Energy Research Division, National Institute of Environmental Research) ;
  • Park, Ki-Hak (ECO P&G) ;
  • Kim, Ki-Heon (Resource Recirculation Research Division, National Institute of Environmental Research) ;
  • Shin, Sun-Kyoung (Resource Recirculation Research Division, National Institute of Environmental Research)
  • 투고 : 2016.07.20
  • 심사 : 2016.09.27
  • 발행 : 2016.12.30

초록

천연자원의 고갈과 온실가스의 감축은 우리가 당면하고 있는 현안이다. 이러한 이유로 폐기물의 재활용은 국제사회적으로도 큰 관심사이며, 국내에서도 비용 대비 효과적인 처리 및 재활용 기술의 개발이 지속적으로 이루어져야 하는 과제를 안고 있다. 본 연구에서는 유기성 폐기물의 처리 및 재활용에 따른 비용원단위 등을 비교 분석 함으로써 효과적인 자원화 방안에 대하여 고찰하였다. 본 연구에서 조사된 유기성 폐기물은 폐수처리오니류, 공정오니, 동 식물성 잔재물 등이며, 해당 폐기물을 배출하는 80개 사업장을 대상으로 처리현황 및 처리비용을 조사하였다. 유기성 폐기물의 경제성 있는 적정 처리방법은 퇴비화와 시멘트 부원료로 사용되는 것으로 나타났다. 유기성 폐기물의 성상, 유해물질 등에 따라 경제성 분석이 다를 수 있겠지만, 조사대상 업체로부터 현실적인 폐기물의 처리결과를 바탕으로 분석하였다. 특히, 유기성 폐기물을 퇴비화 제품으로 재활용한다면, 비료의 원료가격 등이 상승됨에 따라 비료가격은 증가 추세로 보이기 때문에 경제적인 효과가 있을 것으로 판단된다. 유기성 폐기물의 안정적인 처리 및 재활용을 위해서는 폐수처리오니 등 유해특성을 갖고 있는 폐기물과 유기성 폐기물의 재활용 처리시 기술적 어려운 점인 악취, 침출수, 이물질에 대한 기술적인 노력을 기울여야 할 것이다.

Depletion of natural resources and reduction of greenhouse gas emissions are an important issue which we have to solve. The recycling of waste has emerged as a global concern. In Korea, the development of cost-effective treatment and recycling technologies also need to be improved. In this study, we compared and analyzed the cost per unit of treatment and recycling of organic waste, and presented an effective recycling scheme. We investigated the current status of treatment and costs for six types of organic wastes from 80 workplaces, including organic wastewater treatment sludge, processed organic sludge, and plant residues. In addition, environmental costs for greenhouse gas reduction were calculated. It's an economic way that organic waste is composted and used as cement additives. In particular, the economic analysis was done by realistic results of the survey target companies. In conclusion, in order for reliable processing and recycling of organic wastes, wastewater treatment sludge and sewage sludge need to be classified based on hazard characteristics. Finally, technical difficulties need to be further resolved such as odors, leachate, and debris on recycling organic wastes.

키워드

참고문헌

  1. Ministry of Environment, "A study on the master plan for building waste resource cycle system" (2010).
  2. Ministry of Land, Transport and Maritime Affairs, "Zero plan for ocean dumping of land-based wastes" (2012).
  3. National Assembly Research Service, "Research on the dumping of wastes at sea" (2014).
  4. Statistics Korea, "Trend of ocean dumping amount in land-based wastes" www.index.go.kr, (2016).
  5. Ministry of Environment, "Wastes Control ACT" (2016).
  6. Korea Environment Corporation, "AllbaroSystem" (2010).
  7. National Institute of Environmental Research, "Organic Wastes for the Establishment of Total Management System I" (2004).
  8. Korea Environment Corporation, "2010 Regional waste permits and reporting company information" (2011).
  9. Ministry of Environment, "Guidelines on the management operating target about greenhouse gas and energy" (2012).
  10. Ministry of Environment, "2006 IPCC Guidelines for national greenhouse gas inventories" (2008).
  11. Ministry of Government Legislation, "Regulation for Carbon neutral program" (2011).
  12. Ministry of Environment, "2010 Waste generation and treatment status in Korea" (2011).
  13. Ministry of Environment, "Environmental Statistics Yearbook" (2011).
  14. Ministry of Environment, "Livestock wastewater Processing Statistics 2010" (2011).
  15. Ministry of Environment, "2014 Waste generation and treatment status in Korea" (2015).
  16. Ministry of Environment, "Environmental Statistics Yearbook" (2016).
  17. Ministry for Food, Agriculture, Forestry and Fisheries, "Major statistics of Food, Agriculture, Forestry and Fisheries" (2011).
  18. Organic wastes research society resource circulation in japan, "Recycling strategy of organic waste" (2002).

피인용 문헌

  1. 하수슬러지 가용화와 체외고분자물질(EPS)간의 관계 vol.27, pp.4, 2019, https://doi.org/10.17137/korrae.2019.27.4.43