Forest waste was interested as biomass to produce new renewable energy among various materials. To find appropriate conditions of the bio-ethanol production, acid hydrolysis and glucose fermentation experiments were conducted under various conditions. The acid-hydrolysis experiment results show that yield of glucose were increased as raise of temperature, acid concentration and reaction time. As a result, the optimal conditions for producing glucose from forest waste was under 110oC, 35%, and 100 min, respectively. The yield of glucose, which was generated from acid-hydrolysis experiment, was 2.419 mg/g·g from softwood and was 1.192 mg/g·g from hardwood. Also, it was investigated that acetic acid was more efficient than sulfuric acid for acid-hydrolysis process.

• 조중식(충북대학교 환경공학과) | Jung-Sik Cho
• 정영도(충북대학교 환경공학과) | Young-Do Jeoung
• 김광렬(충북대학교 환경공학과) | Kwang-Yul Kim
• 조병렬(충북대학교 환경공학과) | Byung-Yeol Cho Corresponding author
• 연익준(한국교통대학교 환경공학과) | Ik-Jun Yeon Corresponding author