Table 2 Statistical analysis of the CO2 removal test on TEA concentration differences (0.1, 0.25, 0.5, and 1.0 M), and CO2 loading levels (0.2, 0.4, 0.6, and 0.8 mol CO2/mol TEA) comparing biocomposites and suspended systems over 28 days. The symbol (*) indicates statistically significant differences in the amount of CO2 removal.

From: Carbon dioxide removal from triethanolamine solution using living microalgae-loofah biocomposites

Condition

CO2 removal of biocomposites system (gCO2/gbiomass)

CO2 removal of suspended system (gCO2/gbiomass)

Effect of TEA concentration

df

t

p-value

0.1 M

0.72 ± 0.04

0.25 ± 0.02

12

3.29

< 0.05*

0.25 M

1.47 ± 0.04

0.57 ± 0.04

12

2.98

< 0.05*

0.5 M

2.51 ± 0.20

1.28 ± 0.04

12

2.59

< 0.05*

1.0 M

2.91 ± 0.12

0.46 ± 0.12

12

6.12

< 0.05*

CL0.2

2.31 ± 0.23

0.46 ± 0.05

12

8.06

< 0.05*

CL0.4

4.34 ± 0.20

0.82 ± 0.13

12

7.19

< 0.05*

CL0.6

3.73 ± 0.21

0.69 ± 0.09

12

5.80

< 0.05*

CL0.8

3.05 ± 0.21

0.62 ± 0.08

12

6.22

< 0.05*

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