Table 1 Fitting parameters for adsorption kinetics.

From: Study on the dynamics of phosphorus adsorption and the risk of release in black soils by conservation tillage

Test soil

Pseudo-first-order kinetic equation

Pseudo-second-order kinetic equation

Elovich

Qm mg·kg− 1

k1

R2

Qm mg·kg− 1

k2

R2

a

b

R2

CK

377.255

71.088

0.5319

493.918

3.873

0.9520**

158.700

67.429

0.9823**

FS

337.285

63.261

0.4671

479.687

2.332

0.9074**

118.264

67.573

0.9640**

GH

299.605

56.209

0.5785

377.477

6.344

0.8892**

143.149

48.270

0.9765**

  1. Note: * indicates significant at the 0.05 level, ** indicates significant at the 0.01 level, and *** indicates significant at the 0.001 level, same below.
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