A review on recent developments in hydrodynamic cavitation and advanced oxidative processes for pretreatment of lignocellulosic materials

Prado, Carina Aline; Antunes, Felipe Antônio Fernandes; Rocha, T. M.; Sánchez-Muñoz, Salvador; Barbosa, Fernanda Gonçalves; Hilares, Ruly Terán; Cruz-Santos, Mónica María; Arruda, G.L. de; Silva, S.S. da; Santos, Júlio César dos

doi:10.1016/j.biortech.2021.126458

Cited by 47 publications

(28 citation statements)

References 141 publications

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“…The findings of this work could be used to explain and control various processes triggered by the collapse of bubbles. Some examples include mixing and transport processes, the development of treatment technologies based on bubble-tissue interactions, including drug delivery and high-intensity ultrasound techniques (Prentice et al 2005;Ohl et al 2006b;Maxwell et al 2011), and interactions between a collapsing bubble and a free surface (Kedrinskii 1978). Another exciting phenomenon is generation of surface waves from bubble collapse in deep water.…”

Section: Discussionmentioning

confidence: 99%

“…Cavitation, the process of bubble formation and collapse, is a key physics problem because of its applications in nature, mechanics, biomedical, and many other fields (Cole & Weller 1948;Lohse, Schmitz & Versluis 2001;Ohl et al 2006a,b;Maxwell et al 2013;Fuster 2019). In recent studies, Hou et al (2021) showed that cavitation bubbles can enhance the efficiency of solar absorption refrigeration systems, and Bhat & Gogate (2021) and Prado et al (2022) reviewed the effect of cavitation in wastewater and biomass treatment. Lyons et al (2019) compared the low-frequency sound signals from volcanic eruptions to that of bubble collapse, and suspect that bubbles of the order of 100 m are created by the interaction of magma with water.…”

Section: Introductionmentioning

confidence: 99%

“…The wall modifies the symmetry of the pressure field near the bubble that causes unequal interface acceleration and thus high-speed liquid jets leading to complex cavitation phenomena (Brenner, Hilgenfeldt & Lohse 2002;Popinet & Zaleski 2002;Supponen 2017). These jets are important in understanding the destructive potential of the cavitation bubbles for several biomedical applications such as the disruption of biological membranes in high-intensity focused ultrasound (HIFU), lithotripsy, histotripsy and sonoporation techniques (Prentice et al 2005;Ohl et al 2006b;Maxwell et al 2011;Pishchalnikov et al 2019). Other applications concerning erosion, surface cleaning, noise emission and manufacturing processes (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…(2021) showed that cavitation bubbles can enhance the efficiency of solar absorption refrigeration systems, and Bhat & Gogate (2021) and Prado et al. (2022) reviewed the effect of cavitation in wastewater and biomass treatment. Lyons et al.…”

Section: Introductionmentioning

confidence: 99%

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On the dynamics of a collapsing bubble in contact with a rigid wall

et al. 2022

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This work reveals that the dynamic response of a spherical cap bubble in contact with a rigid wall depends on the effective contact angle at the instant prior to collapse. This parameter allows us to discriminate between two regimes in which the mechanisms of interaction between the collapsing bubble and its surrounding medium differ significantly: when the contact angle is smaller than $90^{\circ }$ , a classical jet directed towards the wall is observed, whereas if the initial contact angle is larger than $90^{\circ }$ , an annular re-entrant jet parallel to the wall appears. We show that this change of behaviour can be explained using the impulse potential flow theory for small times, which shows the presence of a singularity on the initial acceleration of the contact line when the contact angle is larger than $90^{\circ }$ . Direct numerical simulations show that although viscosity regularises the solution at $t > 0$ , the solution remains singular at $t=0$ . In these circumstances, numerical and experimental results show that the collapse of flat bubbles can eventually lead to the formation of a vortex ring that unexpectedly induces long-range effects. The role of the bubble geometry at the instant of maximum expansion on the overall collapse process is shown to be well captured by the impulse potential flow theory, which can be generalised easily to other bubble shapes. These results may find direct application in the interpretation of geophysical flows as well as the control and design of biomedical, naval, manufacturing and sonochemistry applications.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the dynamics of a collapsing bubble in contact with a rigid wall

et al. 2022

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“…Therefore, the most potential replacement for fossil fuels is biodiesel, particularly the one made from vegetable oil with the intervention of transesterification and diesel engines without requiring any engine modifications. [ 13 ] Despite the expense and complexity of manufacturing, a hydrodynamic cavitation method is also a viable choice rather than transesterification; [ 14 ] however, low bio‐diesel yield, process volatility, and low fuel quality remain a substantial challenge. However, biodiesel and its blends very often yield relatively weaker brake thermal efficiency due to their higher density, high viscosity, and lower heating value when contrasted to diesel fuel and emits slightly more CO 2 and NO x due to the higher oxygen content contained in it, [ 15 ] which therefore necessitates additives to counterbalance the challenge.…”

Section: Introductionmentioning

confidence: 99%

Biodiesel from Biomass Waste Feedstock Prosopis Juliflora as a Fuel Substitute for Diesel and Enhancement of Its Usability in Diesel Engines Using Decanol

et al. 2023

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Biomass‐based biofuel production is a promising solution to the decline of fossil fuels. Prosopis juliflora seed‐derived vegetable oil, known as Prosopis juliflora methyl ester (JFME), offers a potential feedstock for biodiesel. To enhance its properties, the addition of Decanol is investigated, a higher‐order alcohol similar to Diesel. Experiments are conducted on a 5.2 kW compression ignition (CI) engine using JFME blended with different decanol concentrations (5%, 10%, 15%, and 20%). Fourier‐transform infrared spectroscopy and gas chromatography‐mass spectrometry analysis confirm its compliance with fuel standards. The findings reveal that the 20% decanol blend (D20) achieves a brake thermal efficiency of 29.9% at full load, with reduced NO, smoke, and hydrocarbon (HC) emissions compared to diesel. D20 shows NO emissions of 1265 ppm, smoke opacity of 53%, and HC emissions of 69 ppm, while diesel records 1320 ppm, 69%, and 75 ppm, respectively. The CO emissions for D20 are 0.359 vol%, slightly higher due to decanol's higher latent heat of evaporation. Moreover, D20 exhibits improved combustion with a higher mass fraction burnt and faster heat release rates. These results indicate the potential of using JFME blended with 20% decanol as an alternative fuel for CI engines, offering higher performance and reduced emissions.

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Bioenergy and bioproducts from cashew apple bagasse: a scientometric overview and strategies for sustainable utilization

Barroso,

Ferreira,

Castro

et al. 2024

Biofuels Bioprod Bioref

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The potential of cashew apple bagasse in advancing a circular bioeconomy is being recognized increasingly. Traditionally viewed as a mere byproduct, this agroindustrial residue is acknowledged for its value in producing biofuels and bioproducts through innovative processes. This review highlights the growing research on cashew apple bagasse, emphasizing its nutritional potential and versatility as a biomass platform for generating products. Advances in pretreatment and fermentation strategies have enhanced bioprocess efficiency and aligned these processes with sustainability goals by utilizing residual materials and reducing environmental impacts. Cashew apple bagasse has also demonstrated considerable promise for enzymatic applications, including enzyme immobilization and biopolymer production, such as polylactic acid. These applications offer eco‐friendly alternatives to conventional petroleum‐based products. Emerging trends in bioenergy research underscore the importance of overcoming technical challenges related to biomass pretreatment, carbon capture, and sustainable production technologies. Innovations in digital financing, artificial intelligence, and hydrogen production are pivotal for the commercial viability of biorefineries. Overall, the promising findings from studies on cashew apple bagasse highlight its crucial role in renewable energy and bioproducts, reinforcing its potential to contribute significantly to a sustainable and circular economy.

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A review on recent developments in hydrodynamic cavitation and advanced oxidative processes for pretreatment of lignocellulosic materials

Cited by 47 publications

References 141 publications

On the dynamics of a collapsing bubble in contact with a rigid wall

On the dynamics of a collapsing bubble in contact with a rigid wall

Biodiesel from Biomass Waste Feedstock Prosopis Juliflora as a Fuel Substitute for Diesel and Enhancement of Its Usability in Diesel Engines Using Decanol

Bioenergy and bioproducts from cashew apple bagasse: a scientometric overview and strategies for sustainable utilization

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