Dye

T (°C)

Langmuir Constants

Freundlich Constants

Q0 (mg/g)

K (L/mg)

R2

KF

1/n

R2

RR-2

25

-

-

-

0.015

1.5802

0.9970

35

-

-

-

0.021

1.8254

0.9308

45

-

-

-

0.013

1.9794

0.9871

RB-4

25

15.823

0.268

0.9905

3.503

0.4418

0.7104

35

18.762

0.058

0.7183

1.712

0.5881

0.6123

45

19.881

1.809

0.9992

9.101

0.3549

0.7742
Table 3: Langmuir and Freundlich adsorption isotherm constants for the adsorptions of RR-2 and RB-4 onto aluminium hydroxide sludge (C0= 20; 50; 100; 150; 200 mg/L; CA= 10 g/L; particle size: 355-500 ¯m; initial pH∼7; N= 200 rpm; time= 48 h).
Goto home»