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Table 8 Influence of the initial concentration of Cu (II)

From: Production and characterization of absorbent heat from the bark of residual Brazil nut bark (Bertholletia Excelsa l.)

Ci (mg L-1)

A Ce(mg L-1)

B Ce(mg L-1)

Ce (mg L-1)

MSEa

Qe (mg g-1)

(R%)

5

0.85

0.65

0.75

0.09

0.419

84.99

10

3.48

3.29

3.38

0.09

0.651

66.16

20

0.45

0.69

0.57

0.12

1.877

97.16

30

1.43

2.84

2.14

0.70

2.732

92.87

50

3.34

3.02

3.18

0.16

4.386

93.64

100

0.36

0.35

0.36

0.01

9.274

99.64

150

0.47

0.79

0.64

0.16

13.999

99.58

200

2.79

4.43

3.62

0.82

16.774

98.19

  1. aMean standard error