Table 11 Response surface analysis results.

From: Oil removal from wastewater with biomass-derived hydrochars laboratory insights

Number

Factor Values

Y(Adsorption amount /mg.g− 1)

A

B

C

1

0.08

400

3

151.29

2

0.08

400

3

153.47

3

0.06

400

4

148.35

4

0.10

500

3

133.28

5

0.06

300

3

132.64

6

0.10

400

2

100.03

7

0.08

500

2

128.25

8

0.08

500

4

143.31

9

0.08

300

4

116.08

10

0.06

500

3

140.12

11

0.08

400

3

154.54

12

0.08

300

2

101.32

13

0.10

400

4

111.46

14

0.10

300

3

86.97

15

0.08

400

3

149.86

16

0.06

400

2

134.51

17

0.08

400

3

153.01