Sorption Kinetics - Transport and Fate of Chemicals in Soils: Principles and Applications - page 44

25

Sorption-Desorption Kinetics
Sugarcane Mulch Residue

20

Adsorption

Desorption

15

C i (μg/mL):

3.37
6.36
12.34
18.22
24.3
30.16
Pred

10

5

0

0 100 200 300 400 500 600 700

Reaction Time (h)

FIGURE 2.7
Atrazine concentration in solution during adsorption and desorption versus time. Results are
from a batch kinetic experiment having a mulch-to-solution ratio of 1:30 and for several initial
concentrations (Ci). i ).

500

Sorption-Desorption
Kinetics

Adsorption Desorption

400

C i (μg/mL):

3.37
6.36
12.34
18.22
24.3
30.16
Predicted

300

200

100

0

0 200 400 600 800

Reaction Time (h)

FIGURE 2.8
Amount of atrazine sorbed by sugarcane mulch residue. Results are from a batch kinetic exper-
iment having a mulch-to-solution ratio of 1:30 and for several initial concentrations (Ci). i ).