Low-Cost Biodegradation and Detoxification of Textile Azo Dye C.I. Reactive Blue 172 by Providencia rettgeri Strain HSL1

Table 1

Analysis of control dye RB 172 and its decolorized broth after treatment with P. rettgeri strain HSL1.

Parameters	Control dye	Treated (after 20 h)
COD (mg L^−1)	1020 ± 5.0	153 ± 3.0
TOC (mg L^−1)	1587 ± 7.0	762 ± 4.0
Colour removal (%)	0	99 ± 1.0

Values are mean of three experiments ± standard deviation (SD).