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Papers by Paul Mavros

Research paper thumbnail of Effect of adding glycerol and Tween 80 on gas holdup and bubble size distribution in an aerated stirred tank

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014

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Research paper thumbnail of Quantification of the Performance of Agitators In Stirred Vessels

Chemical engineering research & design, Nov 1, 1997

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Research paper thumbnail of Internal Recirculation and Mixing in Flotation Columns

Chemical Engineering Research & Design, 1995

The effect of column height and internal baffling on the mixing of the liquid phase inside the co... more The effect of column height and internal baffling on the mixing of the liquid phase inside the collection zone of flotation columns was investigated by RTD and the mixed cells-in-series-with-backflow and the axial dispersion models were used to interpret the experimental results. The increase in column height subtly affected the mixing process, by influencing the transition from plug-flow-like to mixed flow conditions. The backflow was calculated in all cases as approximately 10% of the net incoming liquid flow, and 4 to 14 perfectly mixed cells were found to represent the collection zone liquid-phase RTDs, with the higher number of cells corresponding to high liquid and low gas flowrates. Vertical baffles were found to enhance rather than attenuate the collection zone mixing

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Research paper thumbnail of Structured stochastic flow model for interpreting flow-follower data from a stirred vessel

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Research paper thumbnail of Mixing in flotation columns. Part III. Internal circulation

Minerals Engineering, Nov 1, 1993

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Research paper thumbnail of Colour removal from aqueous solutions. Part I. Flotation

Environmental Technology, Jul 1, 1994

The removal of colours from aqueous solutions and/or dispersions has been studied by dispersed‐ai... more The removal of colours from aqueous solutions and/or dispersions has been studied by dispersed‐air flotation, in a semi‐batch flotation column. Three colours were used for the experiments: Basic Yellow 28 (acidic), Direct Black 22 (basic) and Disperse Orange 30 (dispersion colour). All three were effectively removed by flotation within 15 to 30 min. Sodium lauryl sulfate and dodecylamine were found to be effective as collectors in the removal of colour, which was also found to be related to the pH of the solution and the amount of collector added to it, with high collector dosages causing the process to become pH‐independent.

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Research paper thumbnail of Analysis of unsteady tracer dispersion and mixing in a stirred vessel using interconnected networks of ideal flow zones

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Research paper thumbnail of Arsenopyrite enrichment by column flotation

Minerals Engineering, Dec 1, 1993

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Research paper thumbnail of The Changing Face of Chemical Engineering Research

Chemical engineering research & design, 2005

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Research paper thumbnail of Mixing and Hydrodynamics in Flotation Cells

Springer eBooks, 1992

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Research paper thumbnail of Effect of Continuous Feed Stream and Agitator Type on CFSTR Mixing State

Industrial & Engineering Chemistry Research, May 19, 2006

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Research paper thumbnail of Mixing in flotation columns. Part II. Liquid-phase residence time distributions studies

Minerals Engineering, Jul 1, 1993

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Research paper thumbnail of Adsorbent morphology: influence of transient mixing conditions and feed location on semi-batch goethite precipitation

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Research paper thumbnail of Mixing and Agitation in Water Treatment Systems

Water Encyclopedia , Oct 15, 2005

Mixing is one of the primary processes involved in water and wastewater treatment. In this articl... more Mixing is one of the primary processes involved in water and wastewater treatment. In this article, the state of the art in mixing and impeller design is presented.

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Research paper thumbnail of Selective separation of arsenopyrite from an auriferous pyrite concentrate by sulphonate flotation

International Journal of Mineral Processing, May 1, 1993

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Research paper thumbnail of Recovery of Co<sup>2+</sup>Ions from Aqueous Solutions by Froth Flotation. Part II. CoS Precipitation

Separation Science and Technology, 1995

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Research paper thumbnail of Investigation of Flow Patterns in Continuous-flow Stirred Vessels by Laser Doppler Velocimetry

Canadian Journal of Chemical Engineering, May 19, 2008

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Research paper thumbnail of A study of the effect of drag-reducing surfactants on flow patterns in stirred vessels

Chemical engineering research & design, 2011

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Research paper thumbnail of A study and modelling of liquid-phase mixing in a flotation column

International Journal of Mineral Processing, Jun 1, 1989

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Research paper thumbnail of A New Hybrid Flotation—Microfiltration Cell

Separation Science and Technology, Oct 1, 2006

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Research paper thumbnail of Effect of adding glycerol and Tween 80 on gas holdup and bubble size distribution in an aerated stirred tank

Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2014

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Quantification of the Performance of Agitators In Stirred Vessels

Chemical engineering research & design, Nov 1, 1997

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Internal Recirculation and Mixing in Flotation Columns

Chemical Engineering Research & Design, 1995

The effect of column height and internal baffling on the mixing of the liquid phase inside the co... more The effect of column height and internal baffling on the mixing of the liquid phase inside the collection zone of flotation columns was investigated by RTD and the mixed cells-in-series-with-backflow and the axial dispersion models were used to interpret the experimental results. The increase in column height subtly affected the mixing process, by influencing the transition from plug-flow-like to mixed flow conditions. The backflow was calculated in all cases as approximately 10% of the net incoming liquid flow, and 4 to 14 perfectly mixed cells were found to represent the collection zone liquid-phase RTDs, with the higher number of cells corresponding to high liquid and low gas flowrates. Vertical baffles were found to enhance rather than attenuate the collection zone mixing

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Structured stochastic flow model for interpreting flow-follower data from a stirred vessel

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Mixing in flotation columns. Part III. Internal circulation

Minerals Engineering, Nov 1, 1993

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Research paper thumbnail of Colour removal from aqueous solutions. Part I. Flotation

Environmental Technology, Jul 1, 1994

The removal of colours from aqueous solutions and/or dispersions has been studied by dispersed‐ai... more The removal of colours from aqueous solutions and/or dispersions has been studied by dispersed‐air flotation, in a semi‐batch flotation column. Three colours were used for the experiments: Basic Yellow 28 (acidic), Direct Black 22 (basic) and Disperse Orange 30 (dispersion colour). All three were effectively removed by flotation within 15 to 30 min. Sodium lauryl sulfate and dodecylamine were found to be effective as collectors in the removal of colour, which was also found to be related to the pH of the solution and the amount of collector added to it, with high collector dosages causing the process to become pH‐independent.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Analysis of unsteady tracer dispersion and mixing in a stirred vessel using interconnected networks of ideal flow zones

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Arsenopyrite enrichment by column flotation

Minerals Engineering, Dec 1, 1993

Bookmarks Related papers MentionsView impact

Research paper thumbnail of The Changing Face of Chemical Engineering Research

Chemical engineering research & design, 2005

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Mixing and Hydrodynamics in Flotation Cells

Springer eBooks, 1992

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Effect of Continuous Feed Stream and Agitator Type on CFSTR Mixing State

Industrial & Engineering Chemistry Research, May 19, 2006

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Mixing in flotation columns. Part II. Liquid-phase residence time distributions studies

Minerals Engineering, Jul 1, 1993

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Adsorbent morphology: influence of transient mixing conditions and feed location on semi-batch goethite precipitation

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Mixing and Agitation in Water Treatment Systems

Water Encyclopedia , Oct 15, 2005

Mixing is one of the primary processes involved in water and wastewater treatment. In this articl... more Mixing is one of the primary processes involved in water and wastewater treatment. In this article, the state of the art in mixing and impeller design is presented.

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Selective separation of arsenopyrite from an auriferous pyrite concentrate by sulphonate flotation

International Journal of Mineral Processing, May 1, 1993

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Recovery of Co<sup>2+</sup>Ions from Aqueous Solutions by Froth Flotation. Part II. CoS Precipitation

Separation Science and Technology, 1995

Bookmarks Related papers MentionsView impact

Research paper thumbnail of Investigation of Flow Patterns in Continuous-flow Stirred Vessels by Laser Doppler Velocimetry

Canadian Journal of Chemical Engineering, May 19, 2008

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A study of the effect of drag-reducing surfactants on flow patterns in stirred vessels

Chemical engineering research & design, 2011

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A study and modelling of liquid-phase mixing in a flotation column

International Journal of Mineral Processing, Jun 1, 1989

Bookmarks Related papers MentionsView impact

Research paper thumbnail of A New Hybrid Flotation—Microfiltration Cell

Separation Science and Technology, Oct 1, 2006

Bookmarks Related papers MentionsView impact

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