Synergistic effect of alkaline pretreatment and magnetite nanoparticle application on biogas production from rice straw
| Autor: | Ismat Nawaz, Zeshan, Muhammad Junaid Khalid, Adeel Waqas |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
Environmental Engineering Bioconversion Nanoparticle Bioengineering Alkalies 010501 environmental sciences 01 natural sciences chemistry.chemical_compound Biogas 010608 biotechnology Magnetite Nanoparticles Nanoparticle Application Waste Management and Disposal 0105 earth and related environmental sciences Magnetite Renewable Energy Sustainability and the Environment food and beverages Oryza General Medicine Rice straw Anaerobic digestion chemistry Biofuels Yield (chemistry) Methane Nuclear chemistry |
| Zdroj: | Bioresource Technology. 275:288-296 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2018.12.051 |
| Popis: | Agricultural residues have high potential for biogas production, complex lignocellulosic structure is however the main hindrance in their bioconversion. This research focuses on combined effect of alkaline pretreatment of rice straw and magnetite (Fe3O4) nanoparticle application. Four doses of magnetite nanoparticles viz. 60, 80, 100 and 120 ppm were used in the anaerobic digestion of untreated and 2% NaOH pretreated rice straw. Compared to control, 2% NaOH pretreatment alone increased biogas and methane yield by 57 and 60% respectively. Magnetite nanoparticle (MNP) application alone gave maximum yield at 100 ppm which consisted of 37 and 33% more biogas and methane yield respectively. Combining the effect of 2% NaOH pretreatment and 120 ppm MNPs synergistically increased biogas and methane yield by 100 and 129% as compared to control. In addition, an energy assessment indicated a positive net gain of 3765 kJ for 2% NaOH pretreated rice straw with 120 ppm MNPs. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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