Principle and applications of microbubble and nanobubble technology for water treatment

Agarwal, Ashutosh; Ng, Wun Jern; Liu, Yu

doi:10.1016/j.chemosphere.2011.05.054

Cited by 794 publications

(513 citation statements)

References 64 publications

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“…The diameters of nanobubbles with less than 200 nm are far removed from these of microbubbles (Agarwal et al 2011). When Sebba (1971) first reported that tiny bubbles with diameters of several tens of micrometers differ from their larger counterparts in many important properties, with distinctive characteristics including huge interfacial area, long stagnation time, lower bubble rising speed, and high interior pressure which are different from ordinary bubbles (Zheng et al 2015c), micro/nano-bubble had been widely used in various medical (Lee et al 2015), environmental pollution control (Xu et al 2011), food processing (Sato 2011), marine (Endo et al 2008) and agriculture (Neethirajan et al 2011) applications.…”

Section: Introductionmentioning

confidence: 99%

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

Zheng

Wang

et al. 2016

Scientometrics

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With great versatile characteristics, micro/nano-bubble related research have attracted much attention due to their extensive applications in the last half century.Researchers not merely focus on their physi-chemical properties, but also aim at their wellcontrolled generation methods and potential adhibition field. It can be expected that the future prospects of micro/nano-bubble related research will be tremendous and that there will be even more to be explored. In this case study, a bibliometric analysis was conducted to evaluate micro/nano-bubble related research from 1991 to 2014, based on the Science Citation Index EXPANDED database. The Ultrasound in Medicine and Biology with the highest h-index of 56 is the leading journal in this field, publishing 6.9 % of articles over this period, followed by Langmuir and Journal of the Acoustical Society of America. USA and the Univ Toronto, Canada were the most productive country and institution, respectively, while the USA, was the most internationally collaborative and had the highest hindex (111) of all countries. A new method named ''word cluster analysis'' was successfully applied to trace the research hotspots. Innovation in detection means and novel pathways for medical applications via micro/nano-bubble is considered to relate to the Electronic supplementary material The online version of this article

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Section: Introductionmentioning

confidence: 99%

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

Zheng

Wang

et al. 2016

Scientometrics

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“…The potential of nanobubbles is successfully being exploited in other areas, including water treatment (Agarwal, et al, 2011). It is anticipated that the extremely high mass transfer efficiency of nanobubbles could dramatically enhance the effects of ozone, not only for pesticide breakdown, but also antimicrobial action.…”

Section: Bubble Sizementioning

confidence: 99%

“…Microbubbles technology (bubble diameter, 10-50 μm) has been explored for ozone bubbling into wash water for fruits and vegetables and rapid pesticide degradation has been recorded (Agarwal, Ng, & Liu, 2011;Ikeura, Hamasaki, et al, 2013;Ikeura, et al, 2011aIkeura, et al, , 2011b. The relatively smaller sizes of microbubbles boosts the mass transfer rates, which reflects in their greater efficacy compared to bubbling with standard bubble spargers.…”

Section: Bubble Sizementioning

confidence: 99%

The contribution of non-thermal and advanced oxidation technologies towards dissipation of pesticide residues

Misra¹

2015

Trends in Food Science & Technology

116

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“…Based on our previous study, the adsorption of NBs generated in the process of HC on the mineral surfaces is the main contributing factor [19]. The mechanism of NBs adhesion leading to the decrease of mineral particles' surface potential is still unclear, with several possible explanations being proposed based on the previous literature [31,32]. Besides, in the case of HCPP, the surface negative potentials of the scheelite particles are significantly reduced, while the zeta potentials of scheelite have smaller changes in the case of HCPS.…”

Section: Nbs Properties and Their Influence On Flotation Bubble Size mentioning

confidence: 99%

Different Flotation Performance of Ultrafine Scheelite under Two Hydrodynamic Cavitation Modes

Zhou

Shi

et al. 2018

Minerals

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Abstract:In industrial practice, hydrodynamic cavitation (HC) is commonly triggered by jetting either reagent solution or pulp. Although both methods can enhance mineral flotation, are their roles the same? There are few research studies in the field, which severely limits our understanding on mineral flotation combined with HC. Therefore, in this study, the flotation of ultrafine scheelite with HC pretreatments of reagent solution and pulp (abbreviated to be HCPS and HCPP, respectively) was studied and compared through flotation tests, zeta potential analysis, microscope tests, and shear yield stress measurements. The results of flotation tests show that both HCPS and HCPP can enhance the final flotation performance, but in general, HCPP leads to greater improvements on the final flotation recovery. The presence of (hydrophobized) scheelite particles brings extra gas nuclei for the cavitation-flotation system, suggesting that more NBs may be produced in the case of HCPP compared with HCPS. These tiny bubbles remarkably reduce the size distribution of bubbles in the flotation system, thus increasing the particle-bubbles collision probability. Increase in particle aggregation may be another reason why flotation with HCPP results in a higher flotation recovery. The adherence of NBs on hydrophobized particles decreases the (absolute) surface charge of the solids, resulting in a smaller repulsive force among particles and more significant particle aggregation, which is confirmed by the microscope tests and shear yield stress measurements.

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Principle and applications of microbubble and nanobubble technology for water treatment

Cited by 794 publications

References 64 publications

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

The contribution of non-thermal and advanced oxidation technologies towards dissipation of pesticide residues

Different Flotation Performance of Ultrafine Scheelite under Two Hydrodynamic Cavitation Modes

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