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Monitoring of full-scale hydrodynamic cavitation pretreatment in agricultural biogas plant

TitoloMonitoring of full-scale hydrodynamic cavitation pretreatment in agricultural biogas plant
Tipo di pubblicazioneArticolo su Rivista peer-reviewed
Anno di Pubblicazione2018
AutoriGaruti, M., Langone Michela, Fabbri C., and Piccinini S.
RivistaBioresource Technology
Volume247
Paginazione599-609
ISSN09608524
Parole chiaveAgricultural biomass, agricultural slurry, Agriculture, Anaerobic digestion, article, beet, Bio-energy, biodegradability, Biodegradation, bioenergy, biofuel, biofuels, Biogas, Biomass, biomass power, biotechnological procedures, Cavitation, coalbed methane, corn flour, crop residue, Degradation, Energy, energy consumption, energy efficiency, energy market, Energy recovery, energy resource, energy yield, Full-scale implementation, heating, hydrodynamic cavitation, Hydrodynamic cavitations, hydrodynamics, Maize, methane, Methane production, methanogenesis, molasses, monitoring, particle size, power generation, power plant, Pre-treatments, priority journal, Process monitoring, processing, reactor, silage, Specific energy input, Specific methane production, Triticale, Viscosity, Zea mays
Abstract

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. © 2017 Elsevier Ltd

Note

cited By 16

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85030320051&doi=10.1016%2fj.biortech.2017.09.100&partnerID=40&md5=b27f7631ee21f00ef27754572042da2c
DOI10.1016/j.biortech.2017.09.100
Citation KeyGaruti2018599