Bubble hydrodynamic influence on oxygen transfer rate at presence of cationic and anionic surfactants in electroflotation process

Kotti, M.; Ksentini, I.; Mansour, L. Ben

doi:10.1016/s1001-6058(13)60421-7

Cited by 12 publications

(2 citation statements)

References 24 publications

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“…Then, images were extracted and treated with and appropriate suite of shape filters. In order to get a sufficiently representative bubble size, 50 bubbles were at least measured in each case [15]. The technique of illuminating bubbles with diffuse back light [16] was adopted.…”

Section: B Methodsmentioning

confidence: 99%

The effect of temperature on the efficiency of wastewater treatment by electroflotation process supplied by solar energy

Ksentini

Hmidi

Hajlaoui

et al. 2015

IREC2015 the Sixth International Renewable Energy Congress

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In this work, the effect of liquid phase temperature on the hydrodynamic of oxygen and hydrogen bubbles generated by electroflotation process was studied. The diameter and the rise velocity of bubbles were calculated using the method of video recording and image processing. The effect of both liquid phase physicochemical characteristics and current density applied at the electrodes of the electroflotation column on the bubble flow regimes has been studied. Empirical models based in nonlinear regressions were elaborated summarizing hydrodynamic results. These models were used to optimize the treatment of industrial wastewaters. The treatment consists of the abatement of suspended solids rate which exceeded 90%. The effect of temperature variation on the process efficiency in terms of power consumed by electrodes was also studied. This optimization was the key to dimension an efficient photovoltaic solar system able to supply the process.

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Section: B Methodsmentioning

confidence: 99%

The effect of temperature on the efficiency of wastewater treatment by electroflotation process supplied by solar energy

Ksentini

Hmidi

Hajlaoui

et al. 2015

IREC2015 the Sixth International Renewable Energy Congress

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“…Special attention should be paid to the effect of organic surfactant additives and flocculants on electroflotation in aqueous solutions. Surfactants are often applied for optimization of the separation process; they affect the bubble size [27,28] and therefore the oxygen transfer rate. Moreover, surfactants can also be extracted from aqueous solutions using electroflotation [29].…”

Section: Introductionmentioning

confidence: 99%

Electroflotation Extraction of Lanthanum and Scandium Hydroxides From Aqueous Solutions

Zhurinov¹,

Kolesnikov²,

Bayeshov³

et al. 2020

SERIES OF GEOLOGY AND TECHNICAL SCIENCES

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NAS RK is pleased to announce that News of NAS RK. Series of geology and technical sciences scientific journal has been accepted for indexing in the Emerging Sources Citation Index, a new edition of Web of Science. Content in this index is under consideration by Clarivate Analytics to be accepted in the Science Citation Index Expanded, the Social Sciences Citation Index, and the Arts & Humanities Citation Index. The quality and depth of content Web of Science offers to researchers, authors, publishers, and institutions sets it apart from other research databases. The inclusion of News of NAS RK. Series of geology and technical sciences in the Emerging Sources Citation Index demonstrates our dedication to providing the most relevant and influential content of geology and engineering sciences to our community. Қазақстан Республикасы Ұлттық ғылым академиясы "ҚР ҰҒА Хабарлары. Геология жəне техникалық ғылымдар сериясы" ғылыми журналының Web of Science-тің жаңаланған нұсқасы Emerging Sources Citation Index-те индекстелуге қабылданғанын хабарлайды. Бұл индекстелу барысында Clarivate Analytics компаниясы журналды одан əрі the Science Citation Index Expanded, the Social Sciences Citation Index жəне the Arts & Humanities Citation Index-ке қабылдау мəселесін қарастыруда. Webof Science зерттеушілер, авторлар, баспашылар мен мекемелерге контент тереңдігі мен сапасын ұсынады. ҚР ҰҒА Хабарлары. Геология жəне техникалық ғылымдар сериясы Emerging Sources Citation Index-ке енуі біздің қоғамдастық үшін ең өзекті жəне беделді геология жəне техникалық ғылымдар бойынша контентке адалдығымызды білдіреді. НАН РК сообщает, что научный журнал «Известия НАН РК. Серия геологии и технических наук» был принят для индексирования в Emerging Sources Citation Index, обновленной версии Web of Science. Содержание в этом индексировании находится в стадии рассмотрения компанией Clarivate Analytics для дальнейшего принятия журнала в the Science Citation Index Expanded, the Social Sciences Citation Index и the Arts & Humanities Citation Index. Web of Science предлагает качество и глубину контента для исследователей, авторов, издателей и учреждений. Включение Известия НАН РК. Серия геологии и технических наук в Emerging Sources Citation Index демонстрирует нашу приверженность к наиболее актуальному и влиятельному контенту по геологии и техническим наукам для нашего сообщества.

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Impact of Cellulose and Surfactants on Mass Transfer of Bubble Columns

et al. 2019

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The effects of cellulose, surfactants, and their combination on the hydrodynamic behavior and the liquid‐side mass transfer coefficient of a bubble column were evaluated. For that purpose, different aqueous solutions containing surfactants (sodium dodecyl sulfate) and cellulose (microcrystalline cellulose, MCC) were investigated. The interfacial areas were calculated from the bubble diameters, the bubble frequencies, and the terminal bubble rising velocities. The liquid‐side mass transfer coefficients were determined from the volumetric mass transfer coefficients measured by the dynamic method. In the concentration range under test, the experimental results proved that the addition of MCC to the studied liquid phases did not affect the mass transfer coefficient.

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Bubble hydrodynamic influence on oxygen transfer rate at presence of cationic and anionic surfactants in electroflotation process

Cited by 12 publications

References 24 publications

The effect of temperature on the efficiency of wastewater treatment by electroflotation process supplied by solar energy

The effect of temperature on the efficiency of wastewater treatment by electroflotation process supplied by solar energy

Electroflotation Extraction of Lanthanum and Scandium Hydroxides From Aqueous Solutions

Impact of Cellulose and Surfactants on Mass Transfer of Bubble Columns

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