Isotherm

Parameter

Temperatures, K

Remarks

303 K

308 K

313 K

Langmuir

q_max (mg/g)

K_L (1/mg)

R_L

R²

4.2158

0.0196

0.1203

0.9509

4.4169

0.0180

0.1296

0.9632

3.8109

0.0166

0.1399

0.9904

shows favourable adsorption of phosphorus on the adsorbents.

Data conformed to Langmuir Isotherm

Freundlick

n

K_F (1/g)

R²

0.2328

0.9476

0.2436

0.9403

0.2230

0.9396

shows favourable adsorption. Data fitted well to Freundlick Isotherm

Temkin

B (J/mg)

K_t (1/g)

R²

36.59

0.0334

0.844

39.82

0.0315

0.8123

37.77

0.0276

0.8039

R² values show that data did not fit to Temkin Isotherm