Scale-up of vortex based hydrodynamic cavitation devices: A case of degradation of di-chloro aniline in water

Ranade, Vivek V.; Sarvothaman, Varaha Prasad; Simpson, Alister; Nagarajan, Sanjay

doi:10.1016/j.ultsonch.2020.105295

Cited by 47 publications

(47 citation statements)

References 31 publications

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“…These vortex-based HC devices have been systematically scaled up. 120 The potential of vortex-based HC pretreatment for realizing net positive energy gain was highlighted, and examples of such pretreatments such as soya grass, grass silage, sugar cane bagasse, 88 and distillery spent wash 89 were discussed. The need for appropriate models alongside pretreatment for optimizing AD was discussed.…”

Section: Discussionmentioning

confidence: 99%

“…Vortex-based HC devices developed by Ranade et al were found to be suitable considering their significantly lower propensity to clogging and erosion. These vortex-based HC devices have been systematically scaled up . The potential of vortex-based HC pretreatment for realizing net positive energy gain was highlighted, and examples of such pretreatments such as soya grass, grass silage, sugar cane bagasse, and distillery spent wash were discussed.…”

Section: Discussionmentioning

confidence: 99%

“…Rotational HC devices such as BioBANG have been used at a larger scale AD 114 though no systematic scale-up guidelines are available in the open literature. Vortex-based devices have been scaled up 120 systematically and have also been applied successfully for industrial AD intensification applications. 89 For instance, Simpson et al 104 studied the hydrodynamics of linear and swirl flow devices using computational fluid dynamic (CFD) models.…”

Section: Hc Devicesmentioning

confidence: 99%

“…Rotational HC devices such as BioBANG have been used at a larger scale AD though no systematic scale-up guidelines are available in the open literature. Vortex-based devices have been scaled up systematically and have also been applied successfully for industrial AD intensification applications …”

Section: Hydrodynamic Cavitation For Intensifying Anaerobic Digestionmentioning

confidence: 99%

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Valorizing Waste Biomass via Hydrodynamic Cavitation and Anaerobic Digestion

Nagarajan

Ranade

2021

Ind. Eng. Chem. Res.

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It is essential to valorize waste biomass and promote a circular economy for realizing sustainability and decarbonization goals. In this review, we specifically focus on anaerobic digestion (AD) intensified via hydrodynamic cavitation (HC) and modeling as an effective biomass valorization strategy. AD is known to generate renewable energy (biogas) and fertilizer (digestate) and is therefore aligned with the circular economy framework and has the potential to decarbonize the transportation, energy, and heat sectors, which contribute a major share to the current global carbon emissions. The AD-based pathway, though robust, has key challenges such as poor carbon conversion and subpar biogas yields coupled with long residence times. This is mainly due to the recalcitrance offered by the feedstock. HC-based biomass pretreatment is critically reviewed here as a promising AD intensification strategy to overcome this recalcitrance. HC devices and their key aspects of design and scale-up are discussed. Vortex-based HC devices were found to be superior to conventional linear flow HC devices in terms of pretreatment performance and ease of scale up. The use of reaction engineering models of AD for overall optimization of biomass valorization is also discussed. The need for developing an intermediate modeling approach between empirical models and complex biochemical pathway-based models is highlighted. Such an intermediate approach requires simple biomethane potential (BMP) measurements for obtaining essential model parameters. With such parameters obtained from BMP data, the model was found to be useful for simulating and optimizing performance of AD. A prospective AD-based biorefinery is briefly discussed with multiple allied valorization pathways. This review will be useful to researchers and practicing engineers for realizing effective valorization of waste biomass.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Hc Devicesmentioning

confidence: 99%

Section: Hydrodynamic Cavitation For Intensifying Anaerobic Digestionmentioning

confidence: 99%

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Valorizing Waste Biomass via Hydrodynamic Cavitation and Anaerobic Digestion

Nagarajan

Ranade

2021

Ind. Eng. Chem. Res.

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“…Hydrodynamic cavitation was used either without any addition or intensified by other AOPs, in hybrid processes. , A recent work reported results with a combination of venturi and orifice type devices, with the addition of hydrogen peroxide and dispersed zero valence iron nanoparticles as Fenton catalyst. For this work, we have selected a vortex type cavitation system similar to the one used by Ranade et al, considering its reduced energy requirement. The equipment was procured from Vivira Process Technology, Ltd.…”

Section: Methodsmentioning

confidence: 99%

Continuous Heterogeneous Fenton-Type Process for Dye Pollution Abatement Intensified by Hydrodynamic Cavitation

Salierno

Napoleone

Maisterrena

et al. 2021

Ind. Eng. Chem. Res.

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The heterogeneous Fenton-type process was investigated in a continuous upflow fixed-bed reactor (UFBR) of a nano Prussian Blue catalyst supported on γ-alumina beads. Temperature and oxidant concentration strongly increased dye discoloration and total organic carbon (TOC) conversion. The long-term stability of the catalyst was confirmed. The best performance was found with a residence time of 2 min at 353 K and an inlet hydrogen peroxide concentration twice the stoichiometric one required for mineralization, attaining complete discoloration and 45% TOC conversion. The formed reactive species continued the reaction after leaving the UFBR. Hydrodynamic cavitation (HC) of the collected outlet stream led immediately to complete discoloration and doubled the TOC conversion in 40 min. Short-chain carboxylic acids accounted for about 70% of the remaining TOC. The UFBR in-series with the HC reactor led to complete discoloration and intensified the TOC conversion. The subsequent HC step thoroughly consumed the remnant oxidant, increasing its efficiency.

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Experimental Characterization of Hydrodynamic Cavitation Devices

2022

Hydrodynamic Cavitation

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Scale-up of vortex based hydrodynamic cavitation devices: A case of degradation of di-chloro aniline in water

Cited by 47 publications

References 31 publications

Valorizing Waste Biomass via Hydrodynamic Cavitation and Anaerobic Digestion

Valorizing Waste Biomass via Hydrodynamic Cavitation and Anaerobic Digestion

Continuous Heterogeneous Fenton-Type Process for Dye Pollution Abatement Intensified by Hydrodynamic Cavitation

Experimental Characterization of Hydrodynamic Cavitation Devices

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