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Removal of nitrate by electrodialysis: effect of operation parameters
Membrane Water Treatment
We investigated the effect of applied voltage and electrolyte concentration on the nitrate removal and its energy/current efficiency during the electrodialysis. The current increased as the applied voltage increased up to 30 V showing the limiting current density around 20 V. The nitrate removal efficiency (31 to 71% in 240 min) and energy consumption (11 to 77 W•h/L) gradually increased as the applied voltage increased from 10 to 30 V. The highest current efficiency was obtained at 20 V. Thedoi:10.12989/mwt.2017.8.2.201 fatcat:z3kajmrxnnhlhjhmfz5jotbwzi