Optimal wastewater treatment using a packed-bed electrode reactor (PBER): From laboratory experiments to industrial-scale approaches

Wang, Lizhang; Kong, Ying; Jiang, Jiachao; Wei, Dongyang; Peng, Li; Yang, Sen; Ting, Yen‐Peng

doi:10.1016/j.cej.2017.10.124

Cited by 21 publications

(4 citation statements)

References 36 publications

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“…According to the phase-reaction kinetic model, the process of the degradation for organic matter is divided into three stages: the current control stage, the current/diffusion mixed control stage and the diffusion control stage. The following model simulation results are analyzed according to the calculation formulas of each phase [24,25,38].…”

Section: Phase-reaction Kinetics Model Simulation Of Energy Efficiencymentioning

confidence: 99%

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Electrochemical Oxidation of Methyl Orange in an Active Carbon Packed Electrode Reactor (ACPER): Degradation Performance and Kinetic Simulation

Hou

Yan

et al. 2022

IJERPH

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The efficient removal and kinetic modelling of methyl orange (MO) degradation using an electrocatalytic oxidation method in an activated carbon (AC) packed electrode reactor (ACPER) were conducted. A significantly high (81.2%) chemical oxygen demand (COD) and 100.0% MO decolorization efficiency were observed under the experimental conditions of current density of 3.0 mA·cm−2, flow velocity of 0.3 L·h−1, and treatment duration of 1.68 h using a β-PbO2/Ti anode. The high removal efficiency is ascribed to the anode expansion effect after AC packing. The anode expansion coefficient (λ) of the ACPER was calculated to be 0.63 from the cyclic voltammetry (CV) measurement, which means the further current utilization for MO oxidation. Based on the current utilization efficiency on anodic and particle electrode surfaces, a phase-reaction kinetics model was proposed for the simulation of MO COD removal efficiency. Our simulation results showed that the newly established average current efficiency (ACE) and energy consumption (Esp) model well matched the MO experimental degradation data. Our work broadens the scope of the application of ACPER in the treatment industry wastewater containing organics and provides a new strategy for the energy utilization evaluation during the removal of organic matter by electrocatalytic oxidation.

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Section: Phase-reaction Kinetics Model Simulation Of Energy Efficiencymentioning

confidence: 99%

“…To date, we have carried out the model simulation with phenol, landfill leachate and wastewater containing pyridine-derivatives, etc. [24,25]. However, to our knowledge, there is little research on the phase-reaction kinetics model of azo dye wastewater.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Oxidation of Methyl Orange in an Active Carbon Packed Electrode Reactor (ACPER): Degradation Performance and Kinetic Simulation

Hou

Yan

et al. 2022

IJERPH

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“…Meanwhile, the cell design is used in a number of technical processes, for example, in water treatment. 30 In consideration of the two aspects: selectivity and downstream cost, companies such as Monsanto with Baizer and BASF with Lysmeral were able to implement important industrial electrochemical processes with high performance.…”

Section: Lysmeral Processmentioning

confidence: 99%

Does electrifying organic synthesis pay off? The energy efficiency of electro-organic conversions

Seidler

Strugatchi

Gärtner³

et al. 2020

MRS Energy & Sustainability

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“…Recently, research interest in this area got increased especially in the electrochemical oxidation of waste chemicals in a highly energy efficient manner. Wang et al [5] developed an optimal strategy for cell design and operation of an industrial particulate bed electrochemical reactor in treating waste water. Peng et al [6] developed a rotating packed bed reactor for accelerated desulphurization of waste Lead battery paste.…”

Section: Introductionmentioning

confidence: 99%

Compact Flow-Through Electrochemical Cell - A Novel Perspective in Industrial Manufacture of Perchlorates

Menon¹,

Madhu²,

Mathew³

2019

TOCENGJ

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Background: Sodium Perchlorate is one of the major starting intermediate product for the manufacture of various Perchlorates viz, Ammonium perchlorate as solid oxidizer and Strontium Perchlorate as Secondary Injection Thrust Vector Control (SITVC) in launch vehicles. This critical product is manufactured industrially by electrochemical oxidation of Sodium Chlorate solution at the anodic surface. Lead dioxide is preferred in various perchlorate cells because of its low cost. Infrequent detachment of Lead dioxide deposits from the substrate during electrolysis is a grave issue confronted by associated electrochemists in bulk manufacture of chemicals. Moreover, a cheaper alternative for continuous manufacture of Sodium Perchlorate using Lead dioxide electrodes has been an onus among various industrial electrochemists. Objective/ Benefits: Development of a suitable compact flow through electrochemical cell using superfluous or detached Lead dioxide crystals as ‘particle’ electrodes is the major objective of this paper. This compact bed electrochemical cell, is extraordinarily helpful when confronting with lesser reactant concentration or time consuming reactions. Besides, this proposal adds on flexibility in trimming the size of cells when compared with bulky design of conventional cells. Another objective was to demonstrate continuous electrosynthesis of Sodium perchlorate using Lead dioxide without resorting to expensive Platinum. Method: A suitable single bed and a dual bed compact electrochemical cell was made using HDPE body, perforated Poly Propylene distributor, detached Lead dioxide particles, nylon mesh, etc. Four such dual bed cells were made for final demonstration for continuous electro synthesis application. Results: From various experimental trials, an optimum values for temperature, flow rate and current load were determined as 600°C, 800 mL/min and 80 A respectively, in single bed system. Inorder to avoid current penetration issue, dual bed cells were employed. Subsequently, critical operational strategy and systematic configuration for arrangement of dual bed cells were made for demonstrating continuous bed electrochemical cells. Conclusion An average current efficiency of about 78.5% could be achieved which is 20-25 % higher than conventional parallel plate electrode system.

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Optimal wastewater treatment using a packed-bed electrode reactor (PBER): From laboratory experiments to industrial-scale approaches

Cited by 21 publications

References 36 publications

Electrochemical Oxidation of Methyl Orange in an Active Carbon Packed Electrode Reactor (ACPER): Degradation Performance and Kinetic Simulation

Electrochemical Oxidation of Methyl Orange in an Active Carbon Packed Electrode Reactor (ACPER): Degradation Performance and Kinetic Simulation

Does electrifying organic synthesis pay off? The energy efficiency of electro-organic conversions

Compact Flow-Through Electrochemical Cell - A Novel Perspective in Industrial Manufacture of Perchlorates

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