Comparison of Ultrasonic and Hydrothermal Cavitation Pretreatments of Cattle Manure Mixed with Straw Wheat on Fermentative Biogas Production

Zieliński, Marcin; Dębowski, Marcin; Kisielewska, Marta; Nowicka, Anna; Rokicka, Magdalena; Szwarc, Karolina

doi:10.1007/s12649-017-9977-y

Cited by 38 publications

(24 citation statements)

References 30 publications

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“…However, these incur significant costs for recovery of the chemicals and neutralisation required prior to biofuel production. Cavitation has been claimed as an effective pre-treatment offering several advantages over other pretreatment methods 31 and have been increasingly used for LCB pre-treatment [32][33][34][35][36][37][38][39] . Cavitation is the phenomenon of formation, growth and rapid collapse of vaporous microbubbles, known as cavities.…”

Section: Introductionmentioning

confidence: 99%

Pretreatment of Lignocellulosic Biomass Using Vortex-Based Devices for Cavitation: Influence on Biomethane Potential

Nagarajan

Ranade

2019

Ind. Eng. Chem. Res.

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Lignocellulosic biomass (LCB) is an abundant renewable resource to produce fuels and chemicals.Valorisation of LCB, is however a challenge due to its recalcitrant nature posed by the strongly interlinked cellulose-lignin-hemicellulose structures. A range of physico-chemical and biological LCB pre-treatment methods have been reported in literature for enhancing its bio-utilisation. In this work, we used hydrodynamic cavitation (HC) based on vortex devices as a chemical free, environment friendly LCB pre-treatment method to enhance biomethane production. A bench scale pre-treatment set-up using a vortex based cavitation device was established for the pre-treatment of two common LCB's -grass silage (GS) and sugar cane bagasse (SCB). Dried and powdered feedstocks were used in all the experiments. HC was carried out by operating the cavitation device at a flow rate of ~1.5 m 3 /hr.The feedstocks before and after pre-treatment were characterised for morphological and compositional differences using a range of analytical techniques. Liquid phase products produced upon cavitation were also analysed using a HPLC-RI. Biomethane potential (BMP) was measured for GS and SCB with and without pre-treatment, and a first order model was used to describe the kinetics.Up to 40 % enhancement was observed in BMP after cavitation pre-treatment using vortex based devices. A brief discussion on preliminary cost considerations based on the experimentally observed enhancement in BMP is included. The results indicate significant promise of harnessing hydrodynamic cavitation based pre-treatment using vortex based devices for enhancing biomethane production from LCB.

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Section: Introductionmentioning

confidence: 99%

Pretreatment of Lignocellulosic Biomass Using Vortex-Based Devices for Cavitation: Influence on Biomethane Potential

Nagarajan

Ranade

2019

Ind. Eng. Chem. Res.

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“…The content of VS per volume unit of slurry manure is relatively low, thus the addition of animal manure to lignocellulose biomass increases the moisture of the substrate fed to anaerobic reactor [Tsapekos et al 2017]. Co-digestion of dairy cow slurry with energy rich co-substrates has shown promising results in terms of increasing the biogas yield [Zieliński et al 2017]. The anaerobic digestion is also relatively stable as it benefits dairy cow slurry with many positive effects.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Pretreatment of Lignocellulosic Biomass for Methane Fermentation in Innovative Reactor with Cage Mixing System

Rusanowska¹,

Zieliński²,

Dudek³

et al. 2018

J. Ecol. Eng.

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Disintegration of lignocellulosic biomass for energy purposes has been extensively studied. The study aimed to investigate the influence of crushed and uncrushed lignocellulosic biomass on the biogas production in an innovative reactor. The substrate fed to the reactor was Sida hermaphrodita silage mixed with cow manure. The bioreactor had an innovative design of the mixing cage system. The mixing system of the bioreactor consisted of two cylindrical stirrers in the form of a cage. The cages simultaneously rotate around the axis of the bioreactor at against their own axes. The bioreactor is currently presented under the Record Biomap program (Horizon 2020). The bioreactor was operated at organic compounds loading of 2 kg/(m 3 •d) and 3 kg/(m 3 •d) and hydraulic retention time was 50 d and 33 d, respectively. The biogas production under the organic compounds loading of 2 kg VS/(m 3 •d) was 680 L/kg VS from crushed lignocellulosic biomass and 570 L/kg VS from uncrushed lignocellulosic biomass. The biogas production under the organic compounds loading 3 kg VS/(m 3 •d) was 730 L/kg VS from crushed lignocellulosic biomass and 630 L/kg VS from uncrushed lignocellulosic biomass. The crushing of substrate did not influence the methane content in the biogas. In all experiments, the biogas comprised about 54% of methane. The net energy efficiency was calculated as well.

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“…However, biogas productivity via ultrasound was higher than that of the HC pre-treatment. Neither method was able to increase the methane concentration in the biogas [97].…”

Section: Delignification Of Lignocellulosic Biomassmentioning

confidence: 91%

Plant and Biomass Extraction and Valorisation under Hydrodynamic Cavitation

Ferreira

Crudo³

et al. 2019

Processes

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Hydrodynamic cavitation (HC) is a green technology that has been successfully used to intensify a number of process. The cavitation phenomenon is responsible for many effects, including improvements in mass transfer rates and effective cell-wall rupture, leading to matrix disintegration. HC is a promising strategy for extraction processes and provides the fast and efficient recovery of valuable compounds from plants and biomass with high quality. It is a simple method with high energy efficiency that shows great potential for large-scale operations. This review presents a general discussion of the mechanisms of HC, its advantages, different reactor configurations, its applications in the extraction of bioactive compounds from plants, lipids from algal biomass and delignification of lignocellulosic biomass, and a case study in which the HC extraction of basil leftovers is compared with that of other extraction methods.

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Comparison of Ultrasonic and Hydrothermal Cavitation Pretreatments of Cattle Manure Mixed with Straw Wheat on Fermentative Biogas Production

Cited by 38 publications

References 30 publications

Pretreatment of Lignocellulosic Biomass Using Vortex-Based Devices for Cavitation: Influence on Biomethane Potential

Pretreatment of Lignocellulosic Biomass Using Vortex-Based Devices for Cavitation: Influence on Biomethane Potential

Mechanical Pretreatment of Lignocellulosic Biomass for Methane Fermentation in Innovative Reactor with Cage Mixing System

Plant and Biomass Extraction and Valorisation under Hydrodynamic Cavitation

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