High-rate Bioenergy Fermentation using Condensed Molasses Fermentation Solubles

• Main Authors: Tsung-tse Hsieh, 謝宗澤
• Other Authors: Chiu-Yue Lin
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/57478117268529886959

碩士 === 逢甲大學 === 綠色能源科技碩士學位學程 === 99 === The purpose of this study is to investigate bioenergy production using continuously stirred tank reactor and Up-flow anaerobic reactor with a design impeller that can be place immobilized cells.The anaerobic fermentation used concentrated molasses fermentation soluble (CMS) for hydrogen and methane production. The seed was waste activated sludge from Li-Min community in Taichung. The silicone immobilized cells was used to immobilize the acclimated sewage sludge for fermentative hydrogen production from CMS. Other operation conditions were hydraulic retention time (HRT) 8-4 hours, pH 5.5, temperature 35±1℃and CMS concentration 40 and 60 g COD/L. Methane fermentation use hydrogen fermentation effluent and an up-flow anaerobic reactor. The seed sludge was a granular sludge from Tai-Rong fructose plant in Yunlin. The SC immobilized cells was used to immobilize the acclimated sewage sludge for fermentative hydrogen production from CMS hydrogen fermentation effluent . Other operation conditions were HRT 60-12 hours, pH 7.0, temperature 35℃ and hydrogen fermentation effluent concentration of 10, 15 and 20 g COD/L. The results show that the hydrogen fermentation system at HRT 6 h and CMS concentration 60 g COD/L that had hydrogen production rate (HPR), hydrogen yield (HY) and specific hydrogen production rate (SHPR) of 5.7 L/L-d, 1.00 mol-H2/mol hexose and 0.12 L/g VSS, respectively. The methane fermentation system at HRT 12 h and substrate concentration was 20 g COD/L had methane production rate (MPR), methane yield (MY) and specific methane production rate (SMPR) of 8.6 L/L-d, 0.3L/g S-CODremovel and 0.4 L/ g VSS, respectively.