Biology Reference
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6.4 Results
6.4.1 Breakthrough curves and segment sticking efficiencies
For all the six strains, the maximum peak breakthrough concentration reduced with
increasing transport distance, similar to strain SL03 ( Fig. 6.2 ) . The segment sticking
efficiency, Α ( Fig. 6.3 ) , reduced with increasing transport distance. Usually, Α-values were
highest in the first column segment, and varied between 0.198 for strain FR02 to 0.03 for
strain SL20. Lowest Α-values were determined for the most distant column slices, from a
minimum of 0.002 for FR02 to 0.1 for strain FR05.
0.8
0.37 m
0.57 m
0.6
0.77 m
1.07 m
1.47 m
0.4
0.2
0.0
95, 0.00
0
50
100
150
Time(minutes)
Fig. 6.2:
Breakthrough curves of Escherichia coli strain SL03 at various sampling
ports (see legend) in a 1.5 m saturated quartz sand column
 
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