A critical review on the electrosorption of organic compounds in aqueous effluent – Influencing factors and engineering considerations

Electrosorption of phenolic compounds from olive mill wastewater: Mass transport consideration under a transient regime through an alginate-activated carbon fixed-bed electrode

“…Electrode materials are of primary importance in such an electrochemical system because they impact the electrosorption rates and yields. These 4 characteristics depend on the specific surface area, pore size distribution, electric conductivity, surface function and wettability (Lissaneddine et al, 2021b;Yue et al, 2019b). Three-dimensional (3D) particle electrodes provide a large electroactive surface area and can be easily implemented in fixed-bed reactors to favor mass transfer (Andrés García et al, 2018;Lissaneddine et al, 2021b;Macías-garcía et al, 2019;Yue et al, 2019b).…”

“…These 4 characteristics depend on the specific surface area, pore size distribution, electric conductivity, surface function and wettability (Lissaneddine et al, 2021b;Yue et al, 2019b). Three-dimensional (3D) particle electrodes provide a large electroactive surface area and can be easily implemented in fixed-bed reactors to favor mass transfer (Andrés García et al, 2018;Lissaneddine et al, 2021b;Macías-garcía et al, 2019;Yue et al, 2019b). Recently, 3D particle electrodes were shown to exhibit advantages in providing additional active sites and enhanced mass transfer compared to two-dimensional (2D) electrodes, which is conducive to improving the removal efficiency (Wang et al, 2021).…”

“…Moreover, different studies have already demonstrated the performance of 3D electrodes for the electrosorption of organic compounds (e.g., acid red 88, orange II, methylene blue and metribuzin) from wastewater (Lissaneddine et al, 2021b). Matrix effects have rarely been considered, while a supporting electrolyte has always been added in electrosorption experiments (Lissaneddine et al, 2021b).…”

“…Moreover, different studies have already demonstrated the performance of 3D electrodes for the electrosorption of organic compounds (e.g., acid red 88, orange II, methylene blue and metribuzin) from wastewater (Lissaneddine et al, 2021b). Matrix effects have rarely been considered, while a supporting electrolyte has always been added in electrosorption experiments (Lissaneddine et al, 2021b). However, matrix effects are known to interfere with the electrochemical process efficiency, and the addition of salts constitutes a supplementary source of pollution (Lissaneddine et al, 2021b;Mousset, 2020;Mousset et al, 2020Mousset et al, , 2019Mousset et al, , 2018a.…”

Recent advances in electrocatalytic membrane for the removal of micropollutants from water and wastewater

“…Electrosorption is a physicochemical sorption process ( Figure 2 A) that does not involve electron transfer reaction. Diffusion, electromigration, and convection can also occur in the EM, and electromigration can promote the selective migration of charged micropollutants to the oppositely charged electrode for electrosorption ( Lissaneddine et al., 2022 ). The electrostatic interaction between micropollutants and the surfaces of porous electrode materials is one of the key factors for the adsorption and removal of micropollutants, whereas the removal efficiency depends largely on the characteristics of electrode materials (e.g., specific surface area, pore size, surface electronic structure, etc.)…”