Table 2. Langmuir and Freundlich lead adsorption constants on Sargassum filipendula.

Biomass (g/L)

Langmuir constants

Freundlich constants

Q₀
(mg/g)

K_L
(L/g mol)

R²

n

K_F

R²

0.5

1.18 ± 0.02

23.7 ± 6.9

0.9992

2.66 ± 0.01

4.72 ± 0.02

0.9086

1.0

1.20 ± 0.05

20.2 ± 7.0

0.9934

2.06 ± 0.01

4.06 ± 0.02

0.6349

2.0

1.35 ± 0.07

20.2 ± 6.4

0.9894

1.79 ± 0.01

4.00 ± 0.01

0.7520