Fig. S1. Color change of the medium in the anode chamber as current production.

A. Medium from the anodic chamber of the MEC operated for 7 days without medium replacement.

B. Fresh medium.

Fig. S2. Effect of medium replacement on current production. Arrows indicate point at which ammonium was added.

Fig. S3. Effect of the addition of allylthiourea (ATU) on current production and ammonium consumption. Arrow indicates the point at which 0.1 mM of ATU was added.

Table S1. Phylogenetic affiliation of clone sequences of bacterial 16S rRNA genes recovered from the microbial community attached to the anodic electrode.

Appendix S1. Experimental procedures.

Appendix S2. References.

Please note: Wiley Blackwell is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.