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Table III Summary of experimental products

From: Secondary mineral formation associated with respiration of nontronite, NAu-1 by iron reducing bacteria

  Flow-through Anaerobic Viable DIRB 7 days Batch Anaerobic Viable DIRB 4 hours Batch Anaerobic Viable DIRB 7 days Batch Anaerobic Killed DIRB 7 days Batch Aerobic Viable DIRB 7 days
Primary TEA Fe(III) Fe(III) Fe(III) N/A O2
Extent of Fe reduction 7 % ± 1 % 0.1 %–0.2 % 4.4%–4.6% 0.3–1.2% 0.1–0.5%
Phases present      
   Poorly crystalline smectite Not found Yes Yes Yes Yes
   Amorphous aluminosilicate with increased Al/Si Yes Not found Not found Not found Yes
Amorphous Si Yes Yes Yes Yes Yes