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Bio-decolourization of
textile effluent containing Reactive Black-B by
effluent-adapted and non-adapted bacteria
Leena, R. and Selva Raj, D.*
Department
of Post Graduate studies and Research in Zoology, Scott
Christian College (Autonomous), Nagercoil – 629 003, India.
*Corresponding author. E-mail:
selvaraj_suji@yahoo.co.in. Tel: Mob: 9443113891, +91
04651 233095.
Accepted
7 April, 2008 |
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Release of coloured textile effluents is undesirable in the
aquatic environment as they reduce light penetration,
thereby affecting aquatic life and limits utilization of the
water media. Microbial bioremediation is an alternative
treatment option available other than the commonly employed
physico-chemical and biological methods to treat these toxic
effluents. This study investigated the potentials of certain
selected effluent soil-adapted and non-adapted bacteria to
decolourize an actual textile effluent that contained the
diazo dye compound Reactive Black-B. Five effluent-adapted
and four non-adapted bacterial isolates were tested. The
results show that effluent-adapted strains were better
candidates for decolourizing the effluent than the
non-adapted species.
Key
words: Textile effluent, water pollution, azo dye, Reactive
Black-B, biodecolourization, microbial bioremediation,
bacteria. |
