Reactor Design for Advanced Oxidation Processes

Nava, José L.; León, Carlos Ponce de

doi:10.1007/698_2017_54

Cited by 4 publications

(3 citation statements)

References 40 publications

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“…Cell and stack potential difference.-When current flows through a BTTR, the cell potential difference, U across each of the N − 1 identical cells may be expressed as: 19,41…”

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confidence: 99%

“…A timeline showing selected developments in the bipolar trickle tower reactor. Initial patent on the BTTR (1971) 2 ; Fluid flow and mass transfer studies (1972-1979)27,28 ; Electrosynthesis of propylene oxide (1979)29,30 ; Electrode potential studies (1980)31 ; Metal ion removal from synthetic effluent (1981)32 ; Anodic oxidation of cyanide from wastewater (1982)33 ; Epoxidation of ethylene and butene (1983)34 ; Combined cathodic metal deposition and cyanide removal from waste solutions (1982)35 ; Redesign of the BTTR, including different electrode forms (1982-1985)3,4 ; Precious metal recovery (1986)3,4 ; Degradation of textile dyes dye at electrode surface (1992)18 ; Electrocoagulation with soluble electrodes (1992)36 ; Study of operational parameters in a 22-year duty BTTR 37 ; (2004); Bipolar BDD Raschig rings (2007)38 ; Mathematical modelling of 3D bipolar electrodes (2010)39 ; Review of electrochemical decontamination of wastewater from organics (2015)40 ; Review of electrochemical reactor design for advanced oxidation (2017) 41. Revisiting the BTTR with modern high-surface area electrodes (including foams and 3D printed structures) for sustainable applications.…”

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Editors’ Choice—Critical Review—The Bipolar Trickle Tower Reactor: Concept, Development and Applications

Walsh

Arenas

León

2021

J. Electrochem. Soc.

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The concept of a trickle tower, using ordered bipolar electrode elements stacked in (10 to 80) similar layers of porous, 3D electrodes separated by insulating separator meshes is described and key features of electrochemical reactors based on the bipolar trickle tower reactor (BTTR) geometry are reviewed. Fluid flow, mass transfer, active area and bypass current are considered in detail, since they affect the reaction environment. Modified reactor designs have resulted from the process of electrode selection and tower construction. The performance of BTTRs is illustrated by examples from laboratory and industry, including electrosynthesis and environmental treatment. Experimental data are used to rationalise reaction environment and simulate performance. Operational factors such as electrolyte flow, mass transfer rates and volumetric electrode area are highlighted as important factors in achieving high efficiency; minimisation of internal bypass currents is critical. Developments have enabled improvements in reactor construction and a wider choice of electrode material. Future R & D needs are highlighted.

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“…Cell and stack potential difference.-When current flows through a BTTR, the cell potential difference, U across each of the N − 1 identical cells may be expressed as: 19,41…”

Section: [ ]mentioning

confidence: 99%

mentioning

confidence: 99%

Editors’ Choice—Critical Review—The Bipolar Trickle Tower Reactor: Concept, Development and Applications

Walsh

Arenas

León

2021

J. Electrochem. Soc.

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“…Anodic oxidation technology in particular presents mass transport polarization as the main cell potential inefficiency as it deals with low concentration pollutants present in wastewater (Nava & Ponce de León 2018). As the relevant reactions require the direct contact between the electrode surface and the pollutant, maximum efficiency is therefore obtained when the electric charge transfer rate and the pollutant's mass transport rate are balanced (Martínez-Huitle et al 2015).…”

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confidence: 99%

Anodic oxidation of synthetic refinery effluent on lead anode: mass transport and charge rate balance

Zier

Bouafia-Chergui

Chabani

2021

Water Science and Technology

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A synthetic wastewater based on Algiers refinery real effluent was prepared and treated using anodic oxidation. Full factorial plan design was used to conduct the statistical analysis of the results. The aim of the study was to assess the interaction between current density (CD) and stirring degree (SD), and quantify their effects on chemical oxygen demand (COD) removal and electric energy specific consumption (EESC). With an initial COD of 487 mg/l, pH of 5.5 and 0.05 M of Na2SO4 as supporting electrolyte, it was found that a 55 rpm steering degree variation lead to a substantial gain in COD removal and energy consumption, 6% and 8.5 KWh/kg, respectively. Current density was found to have different effect on removal efficiency within the applied stirring domain, and that mass transport coefficient (km) is inversely correlated to energy consumption. Theoretical model describing the process was reviewed and the relation between concentration, hydrodynamics and applied current was emphasized.

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Intensification of Textile Wastewater Treatment Processes

Rahimi

Mosleh

2018

Advanced Textile Engineering Materials

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Reactor Design for Advanced Oxidation Processes

Cited by 4 publications

References 40 publications

Editors’ Choice—Critical Review—The Bipolar Trickle Tower Reactor: Concept, Development and Applications

Editors’ Choice—Critical Review—The Bipolar Trickle Tower Reactor: Concept, Development and Applications

Anodic oxidation of synthetic refinery effluent on lead anode: mass transport and charge rate balance

Intensification of Textile Wastewater Treatment Processes

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