The dataset is an excel sheet that contains all the data needed to create the figures shown in the study. Data is collected in different pages name and description as follows:

Fig. 2. Current density and free ammonia concentrations obtained for different influent NH4+ concentrations and cathode materials.

Fig. 3. Load ratio calculated for different ammonium concentrations in the feed.

Fig. 4. Removal (A) and recovery (B) rates and efficiencies for different ammonium concentrations in the feed.

Fig. 5. Energy consumption per kgN removed (A) and kgN recovered (B).

Fig. 6. Anodic cyclic voltammograms observed for different ammonium concentrations in the feed.