Biomedical Engineering Reference
In-Depth Information
Table 6. Ion exchange rate constants (S) for cationic dye adsorption by
γ
-PGA at different experimental conditions
Boyd's ion exchange model
Experimental conditions
r
2
S (L/min)
Au-O at 100 mg/L
a
0.2538
0.958
Au-O at 200 mg/L
a
0.2294
0.934
Rh-B at 100 mg/L
a
0.1087
0.965
Rh-B at 200 mg/L
a
0.0864
0.976
Sa-O at 100 mg/L
a
0.1331
0.967
Sa-O at 200 mg/L
a
0.0769
0.974
MB at 100 mg/L
b
0.1918
0.997
MG at 100 mg/L
b
0.1799
0.988
BB-Y at 301 K
c
0.1025
0.998
BB-Y at 318 K
c
0.1082
0.992
BB-Y at 333 K
c
0.2199
0.987
BB-Y at pH 2.00
d
0.0548
0.998
BB-Y at pH 3.00
d
0.1027
0.975
BB-Y at pH 3.41
d
0.0979
0.985
BB-Y at pH 3.94
d
0.1025
0.998
BB-Y at pH 5.00
d
0.0910
0.998
Source
: Inbaraj et al. 2006a; 2006c; 2008.
a
γ-PGA dose: 0.4 g/L, Temperature: 301 K, pH: natural pH;
b
γ-PGA dose: 0.4 g/L, Temperature: 301 K, pH: natural pH;
c
BB-Y concentration: 100
mg/L, γ-PGA dose: 0.3 g/L, pH: natural pH;
d
BB-Y concentration: 100 mg/L, γ-PGA dose: 0.3 g/L, Temperature: 301 K, pH: natural pH.
