Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7063846 | Biomass and Bioenergy | 2015 | 9 Pages |
Abstract
This work presents the influence of alkali pretreatment on the enzymatic hydrolysis and efficiency of anaerobic digestion of lignocellulosic biomass pretreated both in a one- (chemical or enzymatic) and two-step (chemical and enzymatic) process. In this study two species of energy crops were used Miscanthus giganteus and Sida hermaphrodita. The aim of this work was to compare biogas production and methane yield during fermentation of pretreated and untreated energy crops. The results show that alkali pretreatment is necessary for the effective biogas generation from plant material due to high delignification level and significant hemicellulose degradation. The two-step hydrolysis process consisting on the alkali and enzymatic step leads to the release of high concentrations of glucose (about 20 g Lâ1). The best results were achieved for M. giganteus with biogas production yield of 421.5 Ndm3 kg TSâ1 and with methane production yield of 257 Ndm3 kg TSâ1.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Process Chemistry and Technology
Authors
Karina Michalska, Marcin BizukojÄ, StanisÅaw Ledakowicz,