Table 3 Response table for signal-to-noise S/N ratios (larger is better).

From: Syringa vulgaris leaves powder a novel low-cost adsorbent for methylene blue removal: isotherms, kinetics, thermodynamic and optimization by Taguchi method

Level

pH

Time

Adsorbent dose

Initial dye concentration

Temperature

Ionic strength

1

33.30

33.93

33.63

34.81

33.42

38.13

2

33.88

33.72

33.92

33.64

33.95

33.19

3

34.39

33.91

34.01

33.12

34.19

30.24

Delta

1.09

0.21

0.38

1.69

0.77

7.90

Rank

3

6

5

2

4

1

Back to article page