농축산바이오매스의 고온 혐기성 생분해도 평가

Thermophilic Anaerobic Biodegradability of Agro-industrial Biomasses

  • 허남효 (한라산업개발(주) 영업본부) ;
  • 강호 (충남대학교 환경공학과) ;
  • 정지현 (충남대학교 환경공학과) ;
  • 이승헌 (한국농어촌공사 농어촌연구원 농어촌환경연구소)
  • 발행 : 2009.11.25

초록

Anaerobic biodegradability(AB), which can be determined with the ultimate methane yield by the decomposition of organic materials, is one of the important parameters for the design and the operation of anaerobic digestion plant. In this study, Biochemical Methane Potential(BMP) test has been carried out to evaluate the methane yield of agro-industrial biomasses such as cattle manure, Italian ryegrass(IRG), Oats, Rye and Barley as the forage crops, Rush, the sludges produced from milling and slaughterhouse wastewater treatment plant(SMWTP, SSWTP). In the condition of thermophilic anaerobic digestion, the ultimate methane yield and anaerobic biodegradability of forage crops ranged from 0.367 to $0.452LCH_4$/gVS of methane yield with AB having the range of about 77.0 to 87.3%. On the other hand, that of other substrate showed low figures compared with the forage crops because of low VS content and C/N ratio. Therefore, the forage crops could be used as a good substrate to produce much more the methane in anaerobic digestion.

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