Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Deposition of reduced Tc (black precipitate) in a hollow-fiber membrane bioreactor containing resting cells of D. desulfuricans and supplied with MOPS buffer supplemented with 50 μM Tc(VII) and 25 mM formate (top bioreactor). No black precipitate was deposited in a control bioreactor supplied with Tc(VII) but no electron donor (formate [bottom bioreactor]). The bioreactors were operated for 94 h at 30°C.
