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Table 4 Removal of some pollutants and 2,4-DCP by free, immobilized laccase from wastewater sample. Data are expressed as mean ± standard deviation across technical replicates (n = 3)

From: 2,4-Dichlorophenol biotransformation using immobilized marine halophilic Bacillus subtilis culture and laccase enzyme: application in wastewater treatment

Incubation time (h)

Immobilized laccase enzyme

Free laccase enzyme

Removal efficiency (%)

Removal efficiency (%)

2,4-DCP

BOD

COD

TOC

2,4-DCP

BOD

COD

TOC

12

25.94±0.08

14.34±0.09

18.90±0.26

20.0±0.12

10.64±0.18

18.08±0.26

10.56±0.29

16.0±0.18

24

45.05±0.08

32.50±0.10

37.5±0.17

36.5±0.19

20.01±0.17

29.11±0.18

23.90±0.26

26.5±0.22

36

65.50±0.10

51.44±0.11

53.60±0.21

59.0±0.12

45.0±0.38

39.14±0.19

32.60±0.24

37.01±0.23

40

72.12±0.11

68.30±0.23

60.34±0.19

60.2±0.22

65.66±0.22

54.00±0.22

45.34±0.13

45.26±0.19

44

89.55±0.12

76.12±0.11

69.20±0.10

65.5±0.19

72.55±0.18

65.10±0.13

52.17±0.11

54.01±0.21

48

92.01±0.06

89.50±0.17

84.19±0.08

75.6±0.19

80.11±0.14

72.45±0.52

63.10±0.07

65.44±0.27

50

54

95.01±0.06

95.00±0.11

90.0±0.14

93.0±0.08

90.11±0.09

90.11±0.08

85.6±0.33

85.6±0.49

86.11±0.11

92.11±0.17

79.0±0.21

82.0±0.08

72.11±0.19

88.67±0.21

70.50±0.10

74.80±0.35