Treatment organisms

After treatment

Status

Organism

Cr (VI) removal (%) M ± SD

*BOD reduction (%) M ± SD

Live in tannery effluent

As. niger

P. chrysogenum

G. sepiarium

72.5 ± 4.2

84.6 ± 4.7

9.6 ± 1.2

85.3 ± 5.6

92.7 ± 6.8

18.5 ± 3.3

Dead in tannery effluent

As. niger

P. chrysogenum

G. sepiarium

25.3 ± 2.0

32.1 ± 2.1

5.4 ± 1.0

0.0 ± 0.0

0.0 ± 0.0

0.0 ± 0.0

Live in aqueous solution

As. niger

P. chrysogenum

G. sepiarium

64.6 ± 4.5

78.2 ± 4.8

9.7 ± 1.5

NA

NA

NA

Dead in aqueous solution

As. niger

P. chrysogenum

G. sepiarium

68.6 ± 3.4

71.7 ± 4.3

6.3 ± 1.2

NA

NA

NA