Combined effect of acoustic cavitation and pulsed discharge plasma on wastewater treatment efficiency in a circulating reactor: A case study of Rhodamine B

Komarov, Sergey V.; Yamamoto, Takuya; Fang, Yu; Hariu, Daiki

doi:10.1016/j.ultsonch.2020.105236

Cited by 22 publications

(12 citation statements)

References 31 publications

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“…For example, a recirculating hybrid reactor that combines US and pulsed discharge plasma has been developed for pollutant degradation, and Rhodamine B was adopted as the model compound. Complete degradation was achieved after 23.5 s working in acidic conditions with 32 kV of plasma discharge, 280 W of US power and with a 8 L/min flow rate (Komarov et al, 2020).…”

Section: Cold Plasmamentioning

confidence: 99%

Process intensification in continuous flow organic synthesis with enabling and hybrid technologies

et al. 2022

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Industrial organic synthesis is time and energy consuming, and generates substantial waste. Traditional conductive heating and mixing in batch reactors is no longer competitive with continuous-flow synthetic methods and enabling technologies that can strongly promote reaction kinetics. These advances lead to faster and simplified downstream processes with easier workup, purification and process scale-up. In the current Industry 4.0 revolution, new advances that are based on cyber-physical systems and artificial intelligence will be able to optimize and invigorate synthetic processes by connecting cascade reactors with continuous in-line monitoring and even predict solutions in case of unforeseen events. Alternative energy sources, such as dielectric and ohmic heating, ultrasound, hydrodynamic cavitation, reactive extruders and plasma have revolutionized standard procedures. So-called hybrid or hyphenated techniques, where the combination of two different energy sources often generates synergistic effects, are also worthy of mention. Herein, we report our consolidated experience of all of these alternative techniques.

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Section: Cold Plasmamentioning

confidence: 99%

Process intensification in continuous flow organic synthesis with enabling and hybrid technologies

et al. 2022

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“…Obviously, such a fast flow can improve mixing and mass transfer of pollutants in the plasma treatment reactor. More details on these phenomena can be found in our earlier papers [8] , [10] , [11] . In the following investigations, it was found that the acoustic streaming always has a beneficial effect on the efficiency of plasma treatment in both batches [9] and circulatory [8] reactors.…”

Section: Introductionmentioning

confidence: 95%

“…More details on these phenomena can be found in our earlier papers [8] , [10] , [11] . In the following investigations, it was found that the acoustic streaming always has a beneficial effect on the efficiency of plasma treatment in both batches [9] and circulatory [8] reactors. As for acoustic cavitation, its effect on the plasma treatment efficiency is more complicated.…”

Section: Introductionmentioning

confidence: 95%

“…As for acoustic cavitation, its effect on the plasma treatment efficiency is more complicated. High-speed camera observations showed that pulse discharge occurs more often during the rarefaction half-cycle of ultrasound wave than during the compression half-cycle [8] . This is because cavitation bubbles are nucleated and grow rapidly when the surrounding pressure becomes low.…”

Section: Introductionmentioning

confidence: 99%

“…Based on the above findings, in our previous research, we proposed a novel technique of wastewater processing, acoustic cavitation assisted plasma (ACAP), which combines the high-voltage pulse discharge and acoustic cavitation [8] , [9] . The main idea was to exploit two phenomena occurring when ultrasound vibrations are introduced in liquids, namely acoustic cavitation and acoustic streaming.…”

Section: Introductionmentioning

confidence: 99%

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Effect of gas injection on cavitation-assisted plasma treatment efficiency of wastewater

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On the Development of Emulsion Destabilization Technologies for Dairy Industry

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Separation of two fluids or particles from an emulsion is a fundamental process in many applications such as creaming of milk in dairy sector and extraction of various oils (avocado oil, palm oil, etc.) among many others. The aim of this paper is to elaborate on the development of various methods and technologies employed for the separation process including gravity, chemical, and centrifugation as well as the newer acoustic separation technology. Influential parameters affecting the performance, advantages, and disadvantages for each method will be discussed and compared. Various transducer configurations and corresponding experimental set-ups and operating parameters are also examined for acoustic separation. Accordingly, the future trend is proposed for introducing new transducer configurations to diminish or preferably eliminate the current disadvantages and barriers and to improve the separation process performance.

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Combined effect of acoustic cavitation and pulsed discharge plasma on wastewater treatment efficiency in a circulating reactor: A case study of Rhodamine B

Cited by 22 publications

References 31 publications

Process intensification in continuous flow organic synthesis with enabling and hybrid technologies

Process intensification in continuous flow organic synthesis with enabling and hybrid technologies

Effect of gas injection on cavitation-assisted plasma treatment efficiency of wastewater

On the Development of Emulsion Destabilization Technologies for Dairy Industry

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