Influence of lignin on the methanization of lignocellulosic wastes |
| |
| Institution: | 1. Department of Civil and Environmental Engineering, Graduate School of Engineering, Tohoku University, Sendai, Miyagi 980-8579, Japan;2. National Institute for Environmental Studies, Onogawa 16-2, Tsukuba, Ibaraki 305-0053, Japan;3. Graduate School of Environmental Studies, Tohoku University, Sendai, Miyagi 980-8579, Japan;1. Institute of Earth Sciences, Ruprecht Karls University Heidelberg, Im Neuenheimer Feld 234-236, D-69120 Heidelberg, Germany;2. Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, D-55128 Mainz, Germany;3. Institute for Geosciences, Johannes Gutenberg University Mainz, Johann-Joachim-Becher-Weg 21, D-55099 Mainz, Germany;4. Department of Geography, Johannes Gutenberg University Mainz, Johann-Joachim-Becher-Weg 21, D-55099 Mainz, Germany;1. State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China;2. School of Environment, Harbin Institute of Technology, Harbin 150090, China;3. College of Environmental Science and Engineering, Tongji University, Shanghai 200092, China |
| |
| Abstract: | The effect on anaerobic digestion of reducing the lignin content of vine shoots to 1% (w/w), by treatment with sodium chlorite in an acid medium at 80°C, is reported. The yields of methane obtained were 240 ml of CH4 g?1 of VS (volatile solids) fed for untreated vine shoots, and 370 ml of CH4 g?1 of VS fed for treated vine shoots. A mathematical model was used to calculate the kinetic parameters H and μ, and the increased biodegradability of the substrate in which lignin had been removed was confirmed. A study of the mass balances of the process under optimum conditions (temperature = 35°C; loading rate of 1 g litre?1 digester day?1) enabled the percentage of degraded cellulose to be calculated (35·5% for untreated vine shoots, 81·5% for the treated vine shoots), as were the volumes of biogas and methane produced per gram of VS introduced (VS1) and degraded. The blocking effect of lignin on the methanization process was confirmed. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
