Microbubble generation and microbubble-aided transport process intensification—A state-of-the-art report

Parmar, Rajeev; Majumder, Subrata Kumar

doi:10.1016/j.cep.2012.12.002

Cited by 217 publications

(106 citation statements)

References 75 publications

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“…The precipitate was obtained in shorter times with the use of MBG compared to the OCG. The surface tension of bubbles increases due to generating tiny bubbles through the MBG that remain longer in the liquid phase and contact with the Ca(OH) 2 in extended times [31,32]. These properties led to the increase solubility of CO 2 in the slurry, and the reaction became faster [19,33].…”

mentioning

confidence: 99%

Influences of CO2 Bubbling Types on Preparation of Calcite Nanoparticles by Carbonation Process

Altıner

2017

Period. Polytech. Chem. Eng.

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mentioning

confidence: 99%

Influences of CO2 Bubbling Types on Preparation of Calcite Nanoparticles by Carbonation Process

Altıner

2017

Period. Polytech. Chem. Eng.

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“…Microbubbles (MBs) are very tiny bubbles in liquids, with diameters of several tens of micrometers [1]. One typical use of MBs is water purification, achieved by increasing the dissolved oxygen concentration in polluted water.…”

Section: Introductionmentioning

confidence: 99%

Effects of CO2 Bubble Size, CO2 Flow Rate and Calcium Source on the Size and Specific Surface Area of CaCO3 Particles

et al. 2015

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Abstract:The effects of CO2 flow rate and calcium source on the particle size (PS) and specific surface area (SSA) of CaCO3 particles were evaluated using microbubble generator (MBG) and air diffuser (AD) systems. The carbonate mineralization (CM) and precipitated calcium carbonate (PCC) methods were employed to produce CaCO3 using gypsum and Ca(OH)2 as the calcium sources, respectively. The CaCO3 particles prepared using the MBG were smaller (with larger specific surface area) than those obtained using the conventional AD, regardless of the calcium source. The average PSs were 2-3 and 7-9 μm for the MBG and AD systems, respectively. Moreover, the PS and SSA of the particles prepared using the MBG were not greatly affected by the CO2 injection rate. This study clearly demonstrates that the use of an MBG ensures the stable production of fine CaCO3 particles using various calcium sources and a wider range of CO2 flow rates.

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“…Microbubbles can be generated by number of ways and can be classified into four methods, i.e. with accompanying liquid flow, without accompanying liquid flow, by polymer, and low power generation techniques [6]. The first method is the most widely used methods for generating microbubbles in large numbers.…”

Section: Introductionmentioning

confidence: 99%

Dynamic Analysis of Shaft System of Micro Bubble Generating Pump

Bahrudin¹,

Sugiarto²

2017

IJMMM

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Abstract-Gas-liquid mixing pump is one type of microbubble generator which is very efficient for mixing gas and liquid directly and dissolve them. However, one of the problems in designing the rotating machinery is the vibration, because the vibration is usually a direct cause of the component damage. In this paper, the dynamic characteristic of shaft system on a micro bubble generating pump was evaluated based on finite element analysis using ANSYS to investigate the stability and the critical speed of the system. Based on the results of evaluation, finite element analysis can predict the vibration modes on the entire segment of the shaft system in accordance with the natural frequencies of the respective modes. However, it did not find any critical speeds below the design rotational velocity of the shaft system. It can be concluded that the shaft system of the gas-liquid mixing pump was still outside the resonance region and the structural design of the shaft system could be operated safely.. Index Terms-Finite element, Campbell diagram, natural frequency, micro bubble, gas-liquid mixing pump.

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Microbubble generation and microbubble-aided transport process intensification—A state-of-the-art report

Cited by 217 publications

References 75 publications

Influences of CO2 Bubbling Types on Preparation of Calcite Nanoparticles by Carbonation Process

Influences of CO2 Bubbling Types on Preparation of Calcite Nanoparticles by Carbonation Process

Effects of CO2 Bubble Size, CO2 Flow Rate and Calcium Source on the Size and Specific Surface Area of CaCO3 Particles

Dynamic Analysis of Shaft System of Micro Bubble Generating Pump

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