The influence of iron concentration on biohydrogen production from organic waste via anaerobic fermentation
| Autor: | Maria Rosaria Boni, L. Tuccinardi, S. Sbaffoni |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
anaerobic digestion
Municipal solid waste Gompertz function biohydrogen Solid Waste anaerobic digestion biohydrogen iron organic waste waste treatment Bioreactors iron Environmental Chemistry Biohydrogen Anaerobiosis Waste Management and Disposal Water Science and Technology organic waste Waste management Chemistry General Medicine Biodegradable waste Carbon Dioxide Pulp and paper industry Fatty Acids Volatile Food waste Waste treatment Anaerobic digestion Fermentation Methane waste treatment Hydrogen |
| Popis: | Different micronutrients are essential for bacterial fermentative metabolism. In particular, some metallic ions, like iron, are able to affect the biological H 2 production. In this study, batch tests were carried out in stirred reactors to investigate the effects of Fe 2+ concentration on fermentative H 2 production from two different organic fractions of waste: source-separated organic waste (OW) from a composting plant including organic fraction of municipal solid waste and food waste (FW) from a refectory. Iron supplementation at 1000 mg/L caused twofold increment in the cumulative H 2 production from OW (922 mL) compared with the control (without iron doping). The highest H 2 production (1736 mL) from FW occurred when Fe 2+ concentration was equal to 50 mg/L. In addition, the process production from OW was modelled through the modified Gompertz equation. For FW, a translated Gompertz equation was used by the authors, because the initial lag-time for H 2 production from FW was almost negligible. |
| Databáze: | OpenAIRE |
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