Electrochemical removal of silver using a three-dimensional electrode

Enriquez-Granados, M.A.; Valentin, G.; Storck, A.

doi:10.1016/0013-4686(83)85196-2

Cited by 9 publications

(2 citation statements)

References 8 publications

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“…In this work the influence of the most important hydrodynamic (electrolyte flow rate and residence time) and electrochemical (current intensity and electrode potential) parameters on the concentration-time relationship and current efficiency were presented. 101 The concept of mathematical modeling to describe the behavior of three-dimensional electrodes operating under limiting current conditions also surfaced. 102 In principle, these contributions looked at the effect of electrolyte resistivity, hydrodynamic, and cell geometrical parameters on the distribution of the electrolyte potential and overpotential inside the structure.…”

Section: Electrode Structures 2d Versus 3d Surfacesmentioning

confidence: 99%

Enzyme catalysed biofuel cells

Cooney

Svoboda

Lau

et al. 2008

Energy Environ. Sci.

375

248

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Section: Electrode Structures 2d Versus 3d Surfacesmentioning

confidence: 99%

Enzyme catalysed biofuel cells

Cooney

Svoboda

Lau

et al. 2008

Energy Environ. Sci.

375

248

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“…The technique has been suggested for the recovery of several heavy-metal pollutants, including copper [1.2], silver [3,4], lead [5,6,7], and antimony [8], as well as mercury [9,10], gold, and cadmium. In all of these systems, the basic principle of separation is the same: the metal is removed by electrodeposition as the solution passes through a porous cathode of high surface area.…”

Section: Introductionmentioning

confidence: 99%

Experimental Investigation of a Porous Carbon Electrode for the Removal of Mercury from Contaminated Brine

Matlosz

Newman

1986

J. Electrochem. Soc.

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A flow‐through porous electrode, made of reticulated vitreous carbon (RVC), has been designed to remove mercury from contaminated brine solutions. Experiments with a bench‐scale reactor show that the mercury concentration of contaminated brine solutions can be reduced by as much as a factor of five thousand during a single pass through the electrode. The process is mass‐transfer limited, and the results of the experiments are used to develop a general correlation for the dependence of the mass‐transfer coefficient on the flow rate of electrolyte through RVC. In addition, the effect of counterelectrode placement on the cell resistance is examined, and the experimental data are compared to predictions from a mathematical model of the system. The model agrees favorably with the experimental results, and the benefits of upstream counterelectrode placement, indicated by the model, are verified.

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Silver Electrodeposition from Photographic Processing Solutions

Grau

Bisang

1992

J of Chemical Tech & Biotech

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This paper describes the parameters that are important in the industrial practice of silver removal from photographic fixers. The experiments were performed under potentiostatic control using synthetic solutions. The current efficiency was analysed as a function of the cathodic potential taking into account the deposit quality. A cathodic potential of -0.5 V against a saturated calomel electrode is recommended. The conditions to prevent the darkening of the electrodeposit were investigated. The determination of silver concentration in the solution was made by direct potentiometry. The results obtained with synthetic fixers were corroborated by making the silver deposition from commercial fixers in an electrochemical reactor with rotating cylinder electrode intercalated in an electrolytic flow circuit in order to simulate practical conditions.

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Electrochemical removal of silver using a three-dimensional electrode

Cited by 9 publications

References 8 publications

Enzyme catalysed biofuel cells

Enzyme catalysed biofuel cells

Experimental Investigation of a Porous Carbon Electrode for the Removal of Mercury from Contaminated Brine

Silver Electrodeposition from Photographic Processing Solutions

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