Biomedical Engineering Reference
In-Depth Information
biostimulation test cell, little impact was seen until 8.5 months had passed. After this lag period,
concentrations also fell to the same levels in the biostimulation test cell.
Figure 10.5 shows a plot plan of the next three biobarrier pilot test cells. These test cells
were designed to test the utility of bioaugmentation cells fed by air instead of pure oxygen and
to evaluate a single culture bioaugmentation versus a consortium. First, a stable zone of
oxygenation was established with air, and then MC-100 was injected in a manner similar to
90
W 5-1 5
Groundwater flow
W 1- 9
W 2- 9
W 3- 9
W 4- 9
W 5-1 4
OSC
80
OSC
W 1- 8
W 2- 8
W 3- 8
W 4- 8
W 5-1 3
Oxygen + SC-100
test cell
OSC
W 1- 7
W 2- 7
W 3- 7
W 4- 7
W 5-1 2
70
OSC
OSC
W 5-1 1
60
W 5-1 0
W 5- 9
50
W 2- 6
W 3- 6
W 4- 6
W 5- 8
W 1- 6
ASC
Air + SC-100
test cell
ASC
W 1- 5
W 2- 5
W 3- 5
W 4- 5
W 5- 7
40
ASC
W 1- 4
W 2- 4
W 3- 4
W 4- 4
W 5- 6
ASC
ASC
30
W5-5
W 5- 4
20
W 1- 3
W 2- 3
W 3- 3
W 4- 3
W 5- 3
AMC
Air + MC-100
test cell
AMC
W 1- 2
W 2- 2
W 3- 2
W 4- 2
W 5- 2
10
AMC
W 1- 1
W 2- 1
W 3- 1
W 4- 1
W 5- 1
AMC
0
AMC
Groundwater flow
0
10
20
30
40
50
= Monitoring well
= SC-100 (+ oxygen)
= MC-100 (+ air)
= SC-100 (+ air)
= Oxygen injection point
Figure 10.5. Plot plan of MTBE bioaugmentation plots using mixtures of oxygen and air, mixed
culture (MC) and single organism (SC, later identified as R. aetherivorans).
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