Table 2. The Langmuir and Freundlich adsorption parameters for the biosorption of uranium on the Cystoseira indica algae.

Sorbent

Langmuir model

Freundlich model

Q0
(mg/g)

b
(l/mg)

R2

kF
(mg/g)(mg/l)n

n

R2

Ca-pretreated algae

454.5

0.041

0.9887

30.729

3

0.9576

Protonated

322.58

0.0852

0.9914

49.0944

2.82

0.8785

Non-pretreated algae

224.67

0.0194

0.9922

15.547

2.02

0.9341

Supported by UNESCO / MIRCEN network