Table III.

Summary of experimental products

	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