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Optimization of a rotating cylinder electrode electrochemical reactor for metal recovery: An innovative approach and method combining CFD and response surface methodology. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141335] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Daniel Villalobos-Lara A, Castillo B, Rivera FF, Vazquez-Arenas J. Model accounting for the Cr(III) electroprecipitation kinetics in an electrochemical reactor based on CFD and mass transport contributions. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Andreou E, Roy S. Modelling the Scaling-Up of the Nickel Electroforming Process. FRONTIERS IN CHEMICAL ENGINEERING 2022. [DOI: 10.3389/fceng.2022.755725] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Electroforming is increasingly gaining recognition as a promising and sustainable additive manufacturing process of the “Industry 4.0” era. Numerous important laboratory-scale studies try to shed light onto the pressing question as to which are the best industry approaches to be followed towards the process’s optimisation. One of the most common laboratory-scale apparatus to gather electrochemical data is the rotating disk electrode (RDE). However, for electroforming to be successfully optimised and efficiently applied in industry, systematic scale up studies need to be conducted. Nowadays, well-informed simulations can provide a much-desired insight into the novelties and limits of the process, and therefore, scaling up modelling studies are of essence. Targeted investigations on how the size and geometry of an electroforming reactor can affect the final product could lead to process optimisation through simple modifications of the setup itself, allowing immediate time- and cost-effective adjustments within existing production lines. This means that the accuracy of results that any scaled up model provides, if compared to a successful, smaller scale version of itself, needs to be investigated. In this work a 3-D electrodeposition model of an RDE was used to conduct geometry and model sensitivity studies using a commercial software as is often done in industry. As a next step, a 3-D model of an industrial-scale electroforming reactor, which was 90 times larger in electrolyte volume compared to the RDE, was developed to compare, and identify the key model parameters during scale up. The model results were validated against experimental data collected in the laboratory for both cases to assess model validity.
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Electrosynthesis of hypochlorous acid in a filter-press electrolyzer and its modeling in dilute chloride solutions. J Electroanal Chem (Lausanne) 2021. [DOI: 10.1016/j.jelechem.2021.115286] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Villalobos-Lara AD, Álvarez F, Gamiño-Arroyo Z, Navarro R, Peralta-Hernández JM, Fuentes R, Pérez T. Electrocoagulation treatment of industrial tannery wastewater employing a modified rotating cylinder electrode reactor. CHEMOSPHERE 2021; 264:128491. [PMID: 33045507 DOI: 10.1016/j.chemosphere.2020.128491] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 09/20/2020] [Accepted: 09/28/2020] [Indexed: 05/03/2023]
Abstract
The removal of highly concentrated pollutants, presented in a wastewater mixture from industrial tannery effluents by electrocoagulation, was examined. All experiments were carried out in a rotating cylinder electrode reactor with six aluminum anodes and two sedimentation tanks. The influence of the applied current density and rotational speed on the removal efficiency of an electrocoagulation reactor was studied. Chemical oxygen demand was diminished at 70%, while total suspended solids, chromium (III) and turbidity were almost eliminated (>90%) with 6 mA cm-2 of the applied current density. Additionally, a homogeneous cathodic deposit was obtained at the end of each test. Those cathodic deposits and flocs were analyzed by SEM-EDS. Calculations of the cell energy consumption and the produced aluminum cost were estimated for 6 mA cm-2 and 100 rpm, obtaining 1.98 kWh m-3 and $0.7 USD m-3, respectively.
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Affiliation(s)
- A Daniel Villalobos-Lara
- Departamento de Ingeniería Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/n, Gto., CP, 36050, Mexico
| | - Francisco Álvarez
- Departamento de Ingeniería Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/n, Gto., CP, 36050, Mexico
| | - Zeferino Gamiño-Arroyo
- Departamento de Ingeniería Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/n, Gto., CP, 36050, Mexico
| | - Ricardo Navarro
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Pueblito de Rocha s/n, Gto., CP, 36040, Mexico
| | - Juan M Peralta-Hernández
- Departamento de Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Pueblito de Rocha s/n, Gto., CP, 36040, Mexico
| | - Rosalba Fuentes
- Departamento de Ingeniería Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/n, Gto., CP, 36050, Mexico
| | - Tzayam Pérez
- Departamento de Ingeniería Química, División de Ciencias Naturales y Exactas, Universidad de Guanajuato, Noria Alta S/n, Gto., CP, 36050, Mexico.
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Barragan JA, Ponce de León C, Alemán Castro JR, Peregrina-Lucano A, Gómez-Zamudio F, Larios-Durán ER. Copper and Antimony Recovery from Electronic Waste by Hydrometallurgical and Electrochemical Techniques. ACS OMEGA 2020; 5:12355-12363. [PMID: 32548419 PMCID: PMC7271356 DOI: 10.1021/acsomega.0c01100] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 04/28/2020] [Indexed: 05/06/2023]
Abstract
A strategy for the efficient recovery of highly pure copper and antimony metals from electronic waste (e-waste) was implemented by the combination of hydrometallurgical and electrochemical processes. The focus is on copper recovery as the main component in the leached solution, whereas the antimony recovery process was established as a purification step in order to achieve a highly pure copper deposit. The strategy includes mechanical methods to reduce the size of the wasted printed circuit boards to enhance the efficiency of antimony and copper lixiviation via ferric chloride in acidic media (0.5 M HCl) followed by an electrowinning process. In order to establish the best parameters for copper electrowinning, the leached solution was characterized by cyclic voltammetry and cathodic polarization. Then, an electrochemical reactor with a rotating cylinder electrode was used to evaluate the copper concentration decay, the cathodic current efficiency, the specific energy consumption, and mass-transfer coefficient. Furthermore, antimony was recovered via precipitation by a pH modification in accordance with the Pourbaix diagram. Under this methodology, two valuable products from the e-waste were recovered: a 96 wt % pure copper deposit and 81 wt % pure antimony precipitate. The strategy for recovery of other metal ions, such as lead, present in the e-waste at high concentrations will be reported in further works.
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Affiliation(s)
- Jose Angel Barragan
- Departamento
de Ingeniería Química, Universidad de Guadalajara, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Carlos Ponce de León
- Laboratorio
de Ingeniería Electroquímica, Departamento
de Ingeniería Mecánica, Universidad de Southampton, Highfield, SO17 1BJ Southampton, U.K.
| | - Juan Roberto Alemán Castro
- Departamento
de Ingeniería Química, Universidad de Guadalajara, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Aarón Peregrina-Lucano
- Departamento
de Farmacobiología, Universidad
de Guadalajara, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Felipe Gómez-Zamudio
- Departamento
de Ingeniería Química, Universidad de Guadalajara, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
| | - Erika Roxana Larios-Durán
- Departamento
de Ingeniería Química, Universidad de Guadalajara, Blvd. M. García Barragán #1451, C.P. 44430 Guadalajara, Jalisco, Mexico
- . Phone +52 33 13785900 ext. S 27515
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Heydari H, Ahmadipouya S, Maddah AS, Rokhforouz MR. Experimental and mathematical analysis of electroformed rotating cone electrode. KOREAN J CHEM ENG 2020. [DOI: 10.1007/s11814-020-0479-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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CFD simulation of biphasic flow, mass transport and current distribution in a continuous rotating cylinder electrode reactor for electrocoagulation process. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2019.113807] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Memannavaz H, Pebdeni HH, Liaghat G, Rahmati S, Najafi M, Fazeli H. Numerical and Experimental Analysis of Copper Electroforming on an Aluminum Substrate as a Rotating Cone Electrode Cell. ChemistrySelect 2019. [DOI: 10.1002/slct.201903204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hossein Memannavaz
- Department of MechanicalElectrical &Computer EngineeringScience and Research BranchIslamic Azad University Sattari Ave. Tehran Iran
| | - Hamid H. Pebdeni
- Department of Chemical and Petroleum EngineeringSharif University of Technology Azadi Ave. Tehran Iran
| | - Gholmhossein Liaghat
- Department of Mechanical EngineeringTarbiat Modares University Jalal Al-Ahmad Ave. Tehran Iran
| | - Sadegh Rahmati
- Department of MechanicalElectrical &Computer EngineeringScience and Research BranchIslamic Azad University Sattari Ave. Tehran Iran
| | - Mohammad Najafi
- Department of MechanicalElectrical &Computer EngineeringScience and Research BranchIslamic Azad University Sattari Ave. Tehran Iran
| | - Hamid Fazeli
- Department of Mechanical EngineeringMalek Ashtar Industrial University Lavizan Ave. Tehran Iran
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Electrochemical Studies on CaP Electrodeposition on Three Dimensional Surfaces of Selective Laser Melted Titanium Scaffold. COATINGS 2019. [DOI: 10.3390/coatings9100667] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In this work, calcium phosphate (CaP) coating was electrodeposited on the three dimensional surface of SLM-Ti scaffolds. The in situ measurement showed that the potential variation within 5 mm thickness porous selective laser melting (SLM)-Ti samples was about 80 mV as a result of the low conductivity of CaP coatings. SEM observation results revealed that the coating morphology depended on the distance between the surface position of porous SLM-Ti electrode and the auxiliary electrode. Based on the compared electrochemical experiments, it was found that the top and the bottom surfaces of SLM-Ti scaffolds exhibited continuous nucleation and instantaneous nucleation behavior respectively. The Electrochemical impedance spectroscopy (EIS) results also revealed that the electrodeposition processes at different depth of SLM-Ti scaffolds were not synchronized. These differences were ultimately caused by the non-uniform distribution of the potential and the current inside porous SLM-Ti electrodes. The present work provides a basic research method for studying the mechanism of the electrochemical process on three dimensional surfaces of SLM-Ti scaffolds.
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Pérez T, Ponce de León C, Walsh FC, Nava JL. Simulation of current distribution along a planar electrode under turbulent flow conditions in a laboratory filter-press flow cell. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.166] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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