Quantifying OH radical generation in hydrodynamic cavitation via coumarin dosimetry: Influence of operating parameters and cavitation devices

De-Nasri, Sebastien J.; Sarvothaman, Varaha Prasad; Nagarajan, Sanjay; Manesiotis, Panagiotis; Robertson, Peter K. J.; Ranade, Vivek V.

doi:10.1016/j.ultsonch.2022.106207

Cited by 14 publications

(9 citation statements)

References 44 publications

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“…The sheer intensity of HC, in addition to its oxidizing radicals production, has been harnessed previously for biomass 135 and solubilizing chemical oxygen demand (COD) even at typical industrial ow rates. 136 It is hence possible to harness HC on its own or in synergy [137][138][139] with other AOPs such as photocatalysis to eliminate the toxicity associated with microplastics in water, particularly in remote areas.…”

Section: Discussionmentioning

confidence: 99%

Microplastic emerging pollutants – impact on microbiological diversity, diarrhea, antibiotic resistance, and bioremediation

Uthra,

Chitra,

Damodharan

et al. 2023

Environ. Sci.: Adv.

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Section: Discussionmentioning

confidence: 99%

Microplastic emerging pollutants – impact on microbiological diversity, diarrhea, antibiotic resistance, and bioremediation

Uthra,

Chitra,

Damodharan

et al. 2023

Environ. Sci.: Adv.

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“…The degradation rate exhibited an upward trend as the temperature increased within the range of 30-40 • C but experienced a decline once the temperature surpassed 40 • C. It is imperative to acknowledge that maintaining an appropriate temperature is crucial in order to prevent adverse consequences, such as thermal degradation of the fluid or harm to the equipment employed during the cavitation process. Moreover, elevated temperatures have the potential to result in an increase in energy usage and subsequent financial burdens [54].…”

Section: Effect Of Temperaturementioning

confidence: 99%

“…Sustainability 2024, 16, x FOR PEER REVIEW 11 of 28 degradation of the fluid or harm to the equipment employed during the cavitation process. Moreover, elevated temperatures have the potential to result in an increase in energy usage and subsequent financial burdens [54].…”

Section: Effect Of Phmentioning

confidence: 99%

Hydrodynamic Cavitation and Advanced Oxidation for Enhanced Degradation of Persistent Organic Pollutants: A Review

Yeneneh,

Al Balushi,

Jafary

et al. 2024

Sustainability

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Water pollution has become a major environmental menace due to municipal and industrial effluents discharged into water bodies. Several processes have been devised for the treatment and disposal of wastewater and sludge. Yet, most of the conventional technologies do not meet the requirements of sustainability as they impose a higher load on the environment in terms of resource depletion and toxic waste generation. Recently, sustainable innovative technologies, like hydrodynamic cavitation (HC), have emerged as energy-efficient methods, which can enhance the conventional wastewater treatment processes. HC is a very effective technique for the intensification of processes, like aeration, activated sludge treatment, and anaerobic digestion processes in conventional wastewater treatment plants, particularly for the enhanced degradation of persistent pollutants. On the other hand, advanced oxidation is a proven enhancement method for wastewater treatment. This review provides a comprehensive overview of recently published literature on the application of HC for the treatment of persistent organic pollutants. The potential synergistic impact of HC coupled with advanced oxidation and alternative pre-treatment methods was also reviewed in this study. Moreover, an overview of the present state of model-based research work for HC reactors and a feasibility analysis of various advanced oxidation process is also covered. Options for the pilot-to-large scale implementation of HC and advanced oxidation technologies to ensure the better sustainability of wastewater treatment plants are recommended.

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“…These produced free radicals are mainly reactive oxygen species because of ozone. Hydroxyl radicals were usually found in hydrodynamic cavitation during collapse of microbubbles in harsh acidic conditions (pH 2-3) (Takahashi et al, 2021) but not observed at a neutral pH (De-Nasri et al, 2022). Such low pH is rarely used in drug delivery.…”

Section: Free Radicalsmentioning

confidence: 99%

Nanobubble technologies: Applications in therapy from molecular to cellular level

Hansen

Cha

Ouyang

et al. 2023

Biotechnology Advances

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Quantifying OH radical generation in hydrodynamic cavitation via coumarin dosimetry: Influence of operating parameters and cavitation devices

Cited by 14 publications

References 44 publications

Microplastic emerging pollutants – impact on microbiological diversity, diarrhea, antibiotic resistance, and bioremediation

Microplastic emerging pollutants – impact on microbiological diversity, diarrhea, antibiotic resistance, and bioremediation

Hydrodynamic Cavitation and Advanced Oxidation for Enhanced Degradation of Persistent Organic Pollutants: A Review

Nanobubble technologies: Applications in therapy from molecular to cellular level

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