mass transfer in multiphase systems - Greenleaf University

MASS TRANSFER IN MULTIPHASE SYSTEMS: VOLATILE ORGANIC COMPOUND
REMOVAL IN THREE-PHASE SYSTEMS
Actual VOC vs. Time
1000
Gas Concentration, ppm
100
10
1
0 50 100 150 200 250
Time, hr
Figure 15. Data from pulsed operation for TK-V9.
5.0 Interpretations, Conclusions, and Recommendations
In any further work in this area, a number of recommendations are quite evident in this
dissertation. It is imperative to determine the equilibrium data, e.g., Henry’s Law constant and
the solid-liquid partition coefficient if no laboratory testing is conducted. Even with laboratory
testing, the apparatus should be similar in geometry to the actual system. The author does not
believe the Henry’s constant is going to vary based on water much around ± 10-15% and
therefore not as critical as the partition coefficient. The partition coefficients used in this work
were soil averages. Actual partition coefficients can vary widely. The common assumptions of
the first term of Eq. 15 may need to be examined for applicability. Most authors ignore (by
assuming k s is very large compared to k sL and k L ) it and a better rational should be developed.
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