유기물자원화 (Journal of the Korea Organic Resources Recycling Association)

  • 제30권2호
  • /
  • Pages.29-42
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  • 2022
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  • 1225-6498(pISSN)
  • /
  • 2508-3015(eISSN)
유기성자원학회 (Korea Organic Resources Recycling Association)
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가축분뇨 고체연료 제조 및 발전시설의 경제성 분석

Economic Analysis of Livestock Manure Solid Fuel Manufacturing and Power Generation Facility

  • 김창규 (한경대학교 바이오가스연구센터) ;
  • 윤영만 (한경대학교 바이오가스연구센터)
  • 투고 : 2022.05.30
  • 심사 : 2022.06.14
  • 발행 : 2022.06.30
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초록

정부는 최근 2050년까지 국가 온실가스 순배출량은 "0"으로 하는 2050 탄소중립 정책을 추진하고 있다. 이에, 축산업 부문 2050 탄소중립을 위한 핵심적인 수단으로 가축분뇨 에너지화에 대한 관심이 증가하고 있다. 가축분뇨 고체연료화 기술은 가축분뇨를 건조 또는 탄화시켜 고체연료로 제조하는 기술로서 가축분뇨 고체연료 제조시설 및 발전시설의 경제성 문제로 인하여 보급 확산이 미미한 상황이다. 본 연구에서는 가축분뇨 고체연료 제조 및 이용 촉진을 위하여 가축분뇨 고체연료의 잠재적인 수요처인 가축분뇨 고체연료 발전시설의 경제성을 평가하고자 하였다. 가축분뇨 고체연료 제조원가는 200톤/일 규모의 발효건조 과정에서 97.4 천원/톤으로 가장 낮은 제조원가를 보였다. 가축분뇨 고체연료 발전시설은 신재생에너지공급인증서(REC) 가중치 1.5에서 경제성을 나타냈다. 가축분뇨 고체연료화는 온실가스 저감, 수계 비점오염원 저감 등 다양한 환경적 편익을 지니고 있다. 따라서 가축분뇨 고체연료 생산시설을 확산 보급을 위해서는 다양한 환경 편익을 포함한 경제성 검토가 요구된다.

The government promotes the 2050 carbon-neutral policy. Therefore, the concern to convert livestock manure into energy is increasing for the reduction of greenhouse gases generated in the livestock industry sector. In this study, the economic feasibility of the livestock manure solid fuel power generation facility, which is a major consumer of livestock manure solid fuel, was assessed to expand the demand for livestock manure solid fuel. The production cost of livestock manure solid fuel showed the lowest production cost of 97.4 thousand won/ton when dried using solid fuel at a 200 ton/day scale bio-drying facility. The livestock manure solid fuel power generation facility showed economic feasibility at a REC weight of 1.5 in the case of the bio-drying facility, so it was necessary to set a REC weight of 1.5 or more to expand the demand for livestock manure solid fuel. The conversion of livestock manure into solid fuel has various environmental benefits, such as the reduction of greenhouse gases and the effect of reducing non-point pollutants in the water system. Therefore, in order to expand livestock manure solid fuel production facility, it was required to review the feasibility including various environmental benefits.

키워드

과제정보

본 연구는 농림축산식품부 2025 축산현안대응 산업화기술개발사업(과제번호: 321093-2)의 연구비 지원을 받아 수행되었습니다.

참고문헌

  1. Ministry of Trade, Industry and Energy(MOTIE), "2050 Carbon Neutral Promotion Strategy". (in Korean) (2020)
  2. Greenhouse Gas Information Center, "2020 National Greenhouse Gas Inventory Report". (in Korean). (2020).
  3. Ministry of Agriculture, Food and Rural Affairs (MAFRA) and Ministry of Environment(ME), "The 2nd Basic Plan for Response to Climate Change in Agriculture and Rural Areas". (in Korean). (2021).
  4. Kim, Y. S., Yoon, Y. M., Kim, C. H. and Giersdorf, J., "Status of biogas technologies and policies in south Korea", Renewable & Sustainable Energy Reviews, 16(5), pp. 3430~3438, (2012). https://doi.org/10.1016/j.rser.2012.02.075
  5. Ministry of Government Legislation(MOLEG), "Regulations on the Management and Use of Livestock Manure" (Law No. 18027). (in Korean). (2020).
  6. Ministry of Environment(ME), "Research report on establishing quality standards for livestock manure solid fuel products". (in Korean) (2013).
  7. Oh, S. Y., Kim, C. H. and Yoon, Y. M., "The bioenergy conversion characteristics of feedlot manure discharging from beef cattle barn", Journal of Soil Science and Fertilizer, 48(6), pp. 697~704, (2015).
  8. Jeong K. H., Kim, J. G., Lee D. J., Zo, W. M., Ravindran, B. and Kwag, J. H., "Effect of Drying Process on Cow Manure Solidified Fuel Applications", Journal of the Korea Organic Resources Recycling Association, 24(4), pp. 105~112. (2016). https://doi.org/10.17137/korrae.2016.24.4.105
  9. Jeong K. H., Kim, J. G. and Lee D. J., "Feasibility test for Solidified Fuel with Cow Manure", Journal of soil and groundwater environment, 22(6), pp. 112~119. (2017). https://doi.org/10.7857/JSGE.2017.22.6.112
  10. Jeong K. H., Kim J. K., Lee D. J., Ravindran, B. and Kwag J. H., "Analysis of the Composting Effect on Cow Manure by Aeration and Comparison of Characteristics of Cow Manure Pellet Composts According to Granulation Processing Method", Journal of the Korea Organic Resources Recycling Association, 25(2), pp. 69~76. (2017).
  11. Liu N., Kim S. and Chung J. D., "A Numerical Study on Gasification using Solid Fuel of Cow Manure", Journal of the Korea Society of Waste Management., 37(6), pp. 429~434. (2020). https://doi.org/10.9786/kswm.2020.37.6.429
  12. Lim, S. H. and Chung, J. D., "Study on the Lab Scale Drying Characteristics of Cow Manure", Journal of Korea Society of Waste Management, 35(5), pp. 459~163. (2018). https://doi.org/10.9786/kswm.2018.35.5.459
  13. Rural Development Administration(RDA), "Development of combined wet and dry anaerobic digestion system for improving biogas production". (in Korean). (2015).
  14. Ministry of Environment(ME), "Notification on installation of livestock manure solid fuel facility, etc.". (in Korean). (2020).