Influence of pretreatment with Fenton’s reagent on biogas production and methane yield from lignocellulosic biomass
| Autor: | Liliana Krzystek, Krystian Miazek, Stanisław Ledakowicz, Karina Michalska |
|---|---|
| Rok vydání: | 2012 |
| Předmět: |
Environmental Engineering
Iron Lignocellulosic biomass Biomass Bioengineering Lignin chemistry.chemical_compound Biogas Bioenergy Miscanthus giganteus Waste Management and Disposal biology Plant Extracts Renewable Energy Sustainability and the Environment Hydrolysis Hydrogen Peroxide General Medicine Pulp and paper industry biology.organism_classification Refuse Disposal Sida hermaphrodita Agronomy chemistry Biofuels Reagent Methane Fenton's reagent |
| Zdroj: | Bioresource Technology. 119:72-78 |
| ISSN: | 0960-8524 |
| Popis: | Biomass from Miscanthus giganteus , Sida hermaphrodita and Sorghum Moensch was treated with Fenton’s reagent for 2 hours under optimal conditions (pH = 3, mass ratio of [Fe 2+ ]:[H 2 O 2 ] equals 1:25 for Miscanthus and Sorghum and 1:15 for Sida ). The degrees of delignification were 30.3%, 62.3% and 48.1% for the three plant species, respectively. The volatile fatty acids concentration after chemical pretreatment was high enough for production of biogas with a high methane content. Combined chemical oxidation and enzymatic hydrolysis with cellulase and cellobiase led to glucose contents of above 4 g/L. Among the tested plants, the highest biogas production (25.2 Ndm 3 /kg TS fed) with a 75% methane content was obtained with Sorghum Moensch. The results of the three-step process of biomass degradation show the necessity of applying a chemical pretreatment such as oxidation with Fenton’s reagent. Moreover, the coagulation of residual Fe 3+ ions is not required for high biogas production. |
| Databáze: | OpenAIRE |
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