DOI QR코드

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열가용화를 이용한 음식물탈리여액의 고형물 감량화 및 메탄 생산에 관한 연구

Solid Reduction and Methane Production of Food Waste Leachate using Thermal Solubilization

  • 최정수 (경기대학교 일반대학원 환경에너지공학과) ;
  • 김현구 (경기대학교 일반대학원 환경에너지공학과) ;
  • 주현종 (경기대학교 환경에너지공학과)
  • Choi, Jung Su (Department of Environmental Energy Engineering, Graduate School Kyonggi University) ;
  • Kim, Hyun Gu (Department of Environmental Energy Engineering, Graduate School Kyonggi University) ;
  • Joo, Hyun Jong (Department of Environmental Energy Engineering, Kyonggi University)
  • 투고 : 2014.08.28
  • 심사 : 2014.09.25
  • 발행 : 2014.09.30

초록

Since the ocean dumping of organic wastes is prohibited under the London Convention, the need for land treatment of food waste leachate (FWL) has significantly been growing in recent years. This study was conducted to use thermal solubilization to turn FWL into a form that can easily be degraded during the anaerobic digestion process, thereby reducing the percentage of solids and increasing the production of methane. To derive the optimal operating conditions of thermal solubilization, a laboratory-scale reactor was built and operated. The optimal reaction temperature and time turned out to be $190^{\circ}C$ and 90 min, respectively. The BMP test showed a methane production of 465 mL $CH_4/g$ $COD_{Cr}$ and a biodegradation rate of 90.1%. The production of methane rose by about 15%, compared with no the application of thermal solubilization. To reduce the solid content of FWL and improve the methane production, therefore, it may be helpful to apply thermal solubilization to pre-treatment facilities for anaerobic digestion.

키워드

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