Table 10 Analysis of variance (ANOVA) for MO removal (%).

From: Sustainable removal of azo dyes from real effluents using a biomass-derived composite

Source

SS

df

MS

F-value

p-value

 

Model

3968.6

9

440.96

256.04

< 0.0001

significant

A-Initial concentration

1098.16

1

1098.16

637.64

< 0.0001

 

B-Contact time

1111.33

1

1111.33

645.28

< 0.0001

 

C- mass

596.85

1

596.85

346.56

< 0.0001

 

AB

211.85

1

211.85

123.01

< 0.0001

 

AC

127.46

1

127.46

74.01

< 0.0001

 

BC

137.12

1

137.12

79.62

< 0.0001

 

682.62

1

682.62

396.36

< 0.0001

 

8.7

1

8.7

5.05

0.0594

 

4.55

1

4.55

2.64

0.148

 

Residual

12.06

7

1.72

   

Lack of Fit

4.08

3

1.36

0.6828

0.6074

not significant

Pure Error

7.97

4

1.99

   

Cor Total

3980.66

16