Monitoring of full-scale hydrodynamic cavitation pretreatment in agricultural biogas plant
| Autor: | Michela Langone, Sergio Piccinini, Mirco Garuti, Claudio Fabbri |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
020209 energy Mixing (process engineering) Bioengineering 02 engineering and technology 010501 environmental sciences 01 natural sciences Methane chemistry.chemical_compound Biogas Bioenergy 0202 electrical engineering electronic engineering information engineering Specific energy Biomass Waste Management and Disposal 0105 earth and related environmental sciences Renewable Energy Sustainability and the Environment business.industry Environmental engineering Agriculture General Medicine Renewable energy chemistry Biofuels Digestate Hydrodynamics Environmental science business Energy source |
| Zdroj: | Bioresource Technology. 247:599-609 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2017.09.100 |
| Popis: | The implementation of hydrodynamic cavitation (HC) pretreatment for enhancing the methane potential from agricultural biomasses was evaluated in a full scale agricultural biogas plant, with molasses and corn meal as a supplementary energy source. HC batch tests were run to investigate the influence on methane production, particle size and viscosity of specific energy input. 470 kJ/kgTS was chosen for the full-scale implementation. Nearly 6-months of operational data showed that the HC pretreatment maximized the specific methane production of about 10%, allowing the biogas plant to get out of the fluctuating markets of supplementary energy sources and to reduce the methane emissions. HC influenced viscosity and particle size of digestate, contributing to reduce the energy demand for mixing, heating and pumping. In the light of the obtained results the HC process appears to be an attractive and energetically promising alternative to other pretreatments for the degradation of biomasses in biogas plant. |
| Databáze: | OpenAIRE |
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