Development of a Modified Plug-Flow Anaerobic Digester for Biogas Production from Animal Manures
| Autor: | B. Fernández, Laura Tey, Felipe Hansen, Eduard Muñoz, Maycoll Romero-Guiza, Daniel Gómez, Juan Luis Ramos-Suárez |
|---|---|
| Přispěvatelé: | Producció Animal, Sostenibilitat en Biosistemes |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
anaerobic digestion
Control and Optimization Hydraulic retention time 020209 energy animal manures Energy Engineering and Power Technology 02 engineering and technology 010501 environmental sciences 01 natural sciences lcsh:Technology Biogas 0202 electrical engineering electronic engineering information engineering biogas Organic matter plug-flow reactor unconfined gas injection mixing mixing recirculation Electrical and Electronic Engineering Plug flow reactor model Engineering (miscellaneous) 0105 earth and related environmental sciences chemistry.chemical_classification Renewable Energy Sustainability and the Environment lcsh:T Biodegradation Total dissolved solids Pulp and paper industry Manure Anaerobic digestion chemistry Environmental science Energy (miscellaneous) |
| Zdroj: | Energies; Volume 12; Issue 13; Pages: 2628 Energies, Vol 12, Iss 13, p 2628 (2019) IRTA Pubpro. Open Digital Archive Institut de Recerca i Tecnologia Agroalimentàries (IRTA) |
| ISSN: | 1996-1073 |
| DOI: | 10.3390/en12132628 |
| Popis: | Traditional plug-flow anaerobic reactors (PFRs) are characterized by lacking a mixing system and operating at high total solid concentrations, which limits their applicability for several kinds of manures. This paper studies the performance of a novel modified PFR for the treatment of pig manure, characterized by having an internal sludge mixing system by biogas recirculation in the range of 0.270−0.336 m3 m−3 h−1. The influence on the methane yield of four operating parameters (recirculation rate, hydraulic retention time, organic loading rate, and total solids) was evaluated by running four modified PFRs at the pilot scale in mesophilic conditions. While the previous biodegradability of organic matter by biochemical methane potential tests were between 31% and 47% with a methane yield between 125 and 184 LCH4 kgVS−1, the PFRs showed a suitable performance with organic matter degradation between 25% and 51% and a methane yield of up to 374 LCH4 kgVS−1. Operational problems such as solid stratification, foaming, or scum generation were avoided. |
| Databáze: | OpenAIRE |
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