Dolomite dissolution mechanisms at acidic pH: New insights from high resolution pH-stat and mixed-flow reactor experiments associated to AFM and TEM observations

AbstractFly ash from secondary Pb metallurgy was submitted to the pH-static leaching procedure according to the PrEN 14997 European leaching standard. The 48 h pH-static leaching experiments were performed on (1) fresh untreated fly ash and (2) previously washed fly ash with a cumulative wash step of 60 l kg-1. Greater release ofmetallic contaminants (Pb, Cd, Zn) was observed in the acidic pH range for both ashes. Washing significantly reduced the release of Cd and Zn, but greater concentrations of Pb were observed in leachates from washed fly ash due to the more important leaching of anglesite (PbSO4). The PHREEQC-2 speciation-solubility calculations showed that anglesite, phosgenite (PbCl2·PbCO3) and laurionite (Pb(OH)Cl) are the most important solubility-controlling phases for Pb, which is the most important contaminant.

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3D printed mixed flow reactor for geochemical rate measurements

Applied Geochemistry ◽

10.1016/j.apgeochem.2017.11.008 ◽

2018 ◽

Vol 89 ◽

pp. 86-91 ◽

Cited By ~ 10

Author(s):

F. Marc Michel ◽

J. Donald Rimstidt ◽

Karel Kletetschka

Keyword(s):

Flow Reactor ◽

Mixed Flow ◽

3D Printed

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Reply to Comment on “Kinetics of quartz dissolution in electrolyte solutions using a hydrothermal mixed flow reactor”

Geochimica et Cosmochimica Acta ◽

10.1016/0016-7037(92)90019-f ◽

1992 ◽

Vol 56 (11) ◽

pp. 4093 ◽

Cited By ~ 1

Author(s):

Patricia M. Dove

Keyword(s):

Flow Reactor ◽

Electrolyte Solutions ◽

Mixed Flow ◽

Quartz Dissolution ◽

Kinetics Of

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Influence of Particle Surface Area Concentration on the Production of Organic Particulate Matter in a Continuously Mixed Flow Reactor

Environmental Science & Technology ◽

10.1021/acs.est.8b07302 ◽

2019 ◽

Vol 53 (9) ◽

pp. 4968-4976 ◽

Cited By ~ 2

Author(s):

Yuemei Han ◽

Zhaoheng Gong ◽

Pengfei Liu ◽

Suzane S. de Sá ◽

Karena A. McKinney ◽

...

Keyword(s):

Particulate Matter ◽

Surface Area ◽

Flow Reactor ◽

Particle Surface ◽

Particle Surface Area ◽

Mixed Flow ◽

Organic Particulate Matter ◽

Surface Area Concentration

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Modelling and simulation of a mixed-flow reactor for ammonia and methanol synthesis

Chemical Engineering Science ◽

10.1016/0009-2509(88)80028-9 ◽

1988 ◽

Vol 43 (10) ◽

pp. 2859-2865 ◽

Cited By ~ 5

Author(s):

Chue-San Yoo ◽

Anthony G. Dixon

Keyword(s):

Methanol Synthesis ◽

Flow Reactor ◽

Modelling And Simulation ◽

Mixed Flow

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Comparison of mixed and plug flow reactor for enhancing the cell concentration of Haematococcus pluvialis growth

Research Journal of Biotechnology ◽

10.25303/1611rjbt141146 ◽

2021 ◽

Vol 16 (11) ◽

pp. 141-146

Author(s):

K. Vasumathi ◽

Raja Vadivu G. Nadana ◽

E.M. Nithiya ◽

K. Sundar ◽

M. Premalatha

Keyword(s):

Carbon Dioxide ◽

Carbon Dioxide Emissions ◽

Flow Reactor ◽

Cell Concentration ◽

Haematococcus Pluvialis ◽

Plug Flow ◽

Basal Medium ◽

Optimum Combination ◽

Plug Flow Reactor ◽

Mixed Flow

Photo bioreactions are employed for abating carbon dioxide emissions. The economics depends upon the choice of the type of the reactor. Photo bioreactions can be explained similarly to an autocatalytic reaction. A combined reactor mixed flow reactor followed by plug flow reactor could be the best choice. Using the data on cell concentration of Haematococcus pluvialis with respect to time in 2x concentration of Kobayashi’s basal medium available in the literature, it has been proved that the combined reactor could be the best choice. The optimum combination was also determined.

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