System
Experimental
Results
Langmuir model
C
e
/Q
e
=1/(K
L
Q
max
) +C
e
/Q
max
Freundlich model
lnQ
e
=lnK
F
+ (1/n) lnC
e
NR / Incinerated paper sludge suspension
Q
exp
Q
max
K
L
R
2
K
F
1/n
R
2
(mg/g)
(mg/g)
(L/g)
(%)
(L/g)
(%)
374.982
-344.827
-0.0451
35.74
23,4693
1.3746
95.17
R
2
: Regression coefficient
Table 4:
Adsorption isotherm parameters of NR dye adsorbed onto incinerated sludge for [NR] =5-60mg/L, [Incinerated sludge]=1g/L, pH =5, T=298K and contact time =80min.
