The following data were obtained in a laboratory study conducted for the determination of the overall volumetric mass transfer coefficient in a packed bed air stripping unit with a diameter of 1 m and a height of 4m equipped with 4 equidistant sampling ports along its height. Contaminated groundwater containing an initial TCE concentration of 230 mg/l was fed to the stripping column at 1 m3/m2×min. The air to liquid ratio was 100. Based on the data determine KLa (s-1). Henry’s constant for TCE is 0.428.
|
Depth, m |
0 |
1 |
2 |
3 |
4 |
|
TCE, mg/l |
230 |
140 |
80 |
50 |
30 |
