Biomedical Engineering Reference
In-Depth Information
(a)
0.35
Pre-inoculation
0.3
Day 1
Day 3
0.25
Day 7
Day 8
0.2
0.15
0.1
0.05
0
0
5
10
15
20
25
30
Volume eluted (mL)
(b)
0.45
Pre-inoculation
0.4
Day 1
0.35
Day 4
Day 7
0.3
Day 8
0.25
0.2
0.15
0.1
0.05
0
0
5
10
Volume eluted (mL)
15
20
FIGURE 5.7
Tracer breakthrough curves acquired over time for two different flat-plate
porous media reactor systems: a constant flow system (a) and a constant
head system (b). The constant flow system clearly shows an accelerated break-
through after 7 days, while the constant head system shows increased reten-
tion and dispersion of the dye tracer beginning on day 3. Figure 5.8 shows
pictures for the 7 day tracer study for each system (as well as for a clean
[“pre-inoculation”] reactor).
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