Hydrogen production from xylose using anaerobic mixed microflora

• Main Authors: Wan-ting Chung, 鐘椀亭
• Other Authors: Chiu-Yue Lin
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/02017294480112521830

碩士 === 逢甲大學 === 環境工程與科學所 === 94 === The seed sludges obtained from sewage sludge, distillery sludge, food sludge and paper sludge were pretreated with heat, acid and base and used as the seed microfloras for hydrogen production from xylose. The experimental results showed that the optimum hydrogen yield (HY) occurred at pretreated heat and sewage sludge with 1.34 mol H2/ mol xylose. The liquid products is butyrate primarily. An experimental of reactor hydraulic retention time (HRT) and xylose substrate concentration was tested to understand the effect of organic loading on hydrogen production in continuous stirred tank reactor. The hydrogen yield and hydrogen production rate (HPR) values peaked at HRT 12 h with 0.95 mol H2/ mol xylose and 183 mmol H2/L/day. Liquid products by ethanol (43%) and acetate (25%) primarily by HRT experiment. The hydrogen production in 20 g COD/L as best by substrate concentration experiment. The liquid products is propionate(41-54%) primarily. The total bioenergy production rate obtained at HRT 12 h, xylose 20 g COD/L was 269.5 kJ/L/day.