A study of hydrodynamic cavitation generated by low pressure jet devices

Батоева, А. А.; Aseev, D. G.; Sizykh, M. R.; Vol'nov, I. N.

doi:10.1134/s107042721108012x

Cited by 10 publications

(8 citation statements)

References 13 publications

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“…Finally, the parameters B c and r max in equation (6) were estimated the same way as A T and T c and assuming the values of the latter as known, except that the reference experiments were the five ones involving a cavitation reactor as described in Table 1 and equation (7) was used.…”

Section: Sc Inactivation Model: Parameter Estimation Methodsmentioning

confidence: 99%

“…An original model simulating the yeast lethality rate as a function of temperature and cavitation parameters, represented by equations (5), (6), and (7), and calibrated over the experimental data, allows to interpolate between the sparse data points as well as to extrapolate at least within the range of the observed temperatures.…”

Section: Perspectives and Conclusionmentioning

confidence: 99%

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Energy efficient inactivation of Saccharomyces cerevisiae via controlled hydrodynamic cavitation

Albanese

Ciriminna

Meneguzzo

et al. 2015

Energy Science & Engineering

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We investigate hydrodynamic cavitation to inactivate commonly employed Saccharomyces cerevisiae yeast strains in an aqueous solution using different reactors and hydraulic circuit selected to demonstrate the process feasibility on the industrial scale. The target to achieve an useful lethality of the yeast at lower temperature when compared with standard thermal and even with other cavitation processes was achieved, with 90% yeast strains lethality at lower temperature (6.3-9.5°C), and about 20% lower energy input. A separate model simulating the combined thermal and cavitational effects on yeast lethality allows to accommodate the data into a comprehensive framework providing a tool to design further targeted experiments and to predict results when changing the process parameters.

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Section: Sc Inactivation Model: Parameter Estimation Methodsmentioning

confidence: 99%

Section: Perspectives and Conclusionmentioning

confidence: 99%

Energy efficient inactivation of Saccharomyces cerevisiae via controlled hydrodynamic cavitation

Albanese

Ciriminna

Meneguzzo

et al. 2015

Energy Science & Engineering

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“…Among the most notable chemical effects of HC is the formation of OH − , an unstable radical, which can react with its counterparts creating a strong oxidant, hydrogen peroxide (H 2 O 2 ) (Al-Juboori et al 2010; Batoeva et al 2011). Viten'ko and Gumnitskii (2007) performed an experiment whose aim was to determine the H 2 O 2 formation and its concentration during the treatment of distilled water with HC.…”

Section: Hydrodynamic Cavitationmentioning

confidence: 99%

Application of hydrodynamic cavitation in ballast water treatment

Cvetković

Kompare

Klemenčić

2015

Environ Sci Pollut Res

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Ballast water is, together with hull fouling and aquaculture, considered the most important factor of the worldwide transfer of invasive non-indigenous organisms in aquatic ecosystems and the most important factor in European Union. With the aim of preventing and halting the spread of the transfer of invasive organisms in aquatic ecosystems and also in accordance with IMO's International Convention for the Control and Management of Ships Ballast Water and Sediments, the systems for ballast water treatment, whose work includes, e.g. chemical treatment, ozonation and filtration, are used. Although hydrodynamic cavitation (HC) is used in many different areas, such as science and engineering, implied acoustics, biomedicine, botany, chemistry and hydraulics, the application of HC in ballast water treatment area remains insufficiently researched. This paper presents the first literature review that studies lab- and large-scale setups for ballast water treatment together with the type-approved systems currently available on the market that use HC as a step in their operation. This paper deals with the possible advantages and disadvantages of such systems, as well as their influence on the crew and marine environment. It also analyses perspectives on the further development and application of HC in ballast water treatment.

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“…More recently, the H 2 O decomposition by hydrodynamic cavitation leading to the generation of powerful oxidant hydroxyl radicals •OH (Equation 2) with oxidation potential 2.80 eV, has been thoroughly described along with the consequent cascade of further reactions involving, among the others, recombination into hydrogen peroxide, formation of НO 2 • peroxyl radicals, and increase of dissolved oxygen concentration (Batoeva et al 2011, Aseev and Batoeva 2014, Rajoriya et al 2016:…”

Section: Chemical Effects Of Hydrocavitationmentioning

confidence: 99%

“…While a direct measurement of the concentration of •OH radicals is hardly possible due to their high reactivity and, consequently, extremely short lifetime, few experiments demonstrate that HC processes indeed produce hydroxyl radicals. One such indirect proof was derived using benzene as a chemical dosimeter (when the interaction of •OH radicals and the benzene molecules occurs inside the bubble or at the gas-liquid interface), observing the formation of significant amounts of phenol (10 µmol L -1 ) after 60 min of HC treatment (Batoeva et al 2011 concentration. Remarkably, higher concentrations were detrimental as then hydrogen peroxide start to act as a radical scavenger.…”

Section: Chemical Effects Of Hydrocavitationmentioning

confidence: 99%

Wastewater remediation via controlled hydrocavitation

et al. 2017

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Controlled hydrodynamic cavitation is an energy- and chemicals-saving technology increasingly applied to water sanitation and wastewater remediation via mechanical, oxidative, and thermal degradation of chemical and biological pollutants, including recalcitrant contaminants. Reviewing the advances that have allowed hydrocavitation to emerge as an economically and technically viable environmental technology, we identify the key design parameters that decide its efficacy in degrading biological and chemical contaminants. The ongoing renewable energy boom, lowering the cost of electricity across the world, will only accelerate the adoption of hydrodynamic cavitation as an eminent technology of our common path to sustainability, with energy and clean water access for all.

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A study of hydrodynamic cavitation generated by low pressure jet devices

Cited by 10 publications

References 13 publications

Energy efficient inactivation of Saccharomyces cerevisiae via controlled hydrodynamic cavitation

Energy efficient inactivation of Saccharomyces cerevisiae via controlled hydrodynamic cavitation

Application of hydrodynamic cavitation in ballast water treatment

Wastewater remediation via controlled hydrocavitation

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