Towards long-term operation of flow-electrode capacitive deionization (FCDI): Optimization of operating parameters and regeneration of flow-electrode.

ABSTRACT: This study systematically optimized the key operating parameters and interpreted their effecting mechanisms in a flow-electrode capacitive deionization (FCDI) system. The optimal voltage, activated carbon electrode content, electrolyte concentration, feedwater flowrate, and electrode flowrate for desalinating low salinity feedwater (1.0 g L^-1 NaCl) were determined to be 1.8 V, 2.0 wt%, 10.0 g L^-1, 80 mL min^-1, and 60 mL min^-1, respectively. The variations of the above parameters can affect the system conductivity, the thickness and stability of the electric double layers, and/or the degree of concentration polarization, thereby influencing the desalination performance. Moreover, a sensitivity analysis identified the operating voltage as the domin

SUBMITTER: Zhang W 

PROVIDER: S-EPMC10834994 | biostudies-literature | 2024 Jan

REPOSITORIES: biostudies-literature