Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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SRF Conversion Potential of Biomass and Mixed Plastic Waste Generated in D City

D시 내에서 발생하는 바이오매스 및 폐플라스틱 혼합 폐기물의 SRF 전환 포텐셜 분석

  • Yang, Han-Sol (Department of Environmental Engineering, Chungnam National University) ;
  • Kim, Ki-Kwang (Department of Environmental Engineering, Chungnam National University) ;
  • Lim, Chae-Wook (Department of Environmental Engineering, Chungnam National University) ;
  • Hyun, Jae-Hyuk (Department of Environmental Engineering, Chungnam National University)
  • 양한솔 (충남대학교 환경공학과) ;
  • 김기광 (충남대학교 환경공학과) ;
  • 임채욱 (충남대학교 환경공학과) ;
  • 현재혁 (충남대학교 환경공학과)
  • Received : 2018.09.03
  • Accepted : 2018.09.18
  • Published : 2018.09.30
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Abstract

This study evaluated if the selected samples meets the Solid Refuse Fuel quality criteria in Korea. Biomass and plastic wastes generated in D City were mixed in diverse ratio. When the biomass content was about 40%, the moisture content was close to the SRF criteria and was measured to be 9.8%. The ash contents were analyzed up to 4.19%, and the lower calorific values based on Steuer, Dulong Equation and Bomb Calorimeter were at least 4,851, 4,181 and 3,847 kcal/kg, respectively. As a result of the elemental analysis, sulfur and chloride content were measured up to 0.05%. Those values satisfied the SRF criteria. Also, heavy metals(Hg, Cd, Pb, As) were analyzed to be below the SRF criteria. This makes it possible to use efficiently the wood byproducts abandoned in the woods, and the physical properties of wood being weak to moisture can be supplemented with plastics. Consequently, if plastic and biomass were well mixed and made into SRF, it would overcome the problem of shortening the life span of incineration facilities due to the high temperature of plastic wastes in the incinerator.

본 연구에서는 D시 내의 바이오매스와 폐플라스틱을 적정 비율로 혼합하여 고형연료제품(SRF) 품질기준을 만족하는지 분석하기로 하였다. 수분함량의 경우 바이오매스 구성비가 약 40% 이하일 때부터 9.81% 이하로 분석되었다. 회분함량의 경우 최대 4.19%로 분석되었고, 원소분석 추정식(Steuer, Dulong) 및 발열량계에 근거한 저위발열량은 최소 4,851, 4,181 및 3,847kcal/kg로 나타났다. 원소분석 결과 황(S)과 염소(Cl)는 0.05% 이하로 측정되었고 중금속(Hg, Cd, Pb, As) 함량 또한 기준치 이하를 나타냄으로써 SRF 품질기준치를 만족하였다. 이러한 결과를 바탕으로, 현재 적절하게 활용되지 못하고 산림에 버려져 있는 임목부산물을 효율적으로 사용할 수 있을 뿐만 아니라 수분에 약한 목재의 물리적 특성을 플라스틱으로 보완할 수 있을 것으로 사료된다. 또한 플라스틱 소각 시 고온으로 인한 소각로의 수명문제도 비교적 완화시킬 수 있을 것으로 판단하였다.

Keywords

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