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. 2014 Jul 15;84(1-2):83-9.
doi: 10.1016/j.marpolbul.2014.05.033. Epub 2014 Jun 6.

Biological neutralization and biosorption of dyes of alkaline textile industry wastewater

Rakeshkumar M Jain  1 , Kalpana H Mody  2 , Jitendra Keshri  1 , Bhavanath Jha  1
Affiliations

Biological neutralization and biosorption of dyes of alkaline textile industry wastewater

Rakeshkumar M Jain et al. Mar Pollut Bull. .

Abstract

The present work was aimed to secure biological neutralization and biosorption of dyes of an alkaline textile industrial effluent (ATIE) using an alkaliphilic bacterium, Enterococcus faecalis strain R-16 isolated from Gujarat coast. The isolate was capable and competent to bring down the pH of ATIE from 12.1 to 7.0 within 2 h in the presence of carbon and nitrogen sources. Carboxylic group concentration (CGC), NMR and FT-IR analysis revealed production of carboxylic acid as a result of neutralization. The unconventional carbon and nitrogen sources like Madhuca indica flowers or sugar cane bagasse supported the growth of bacterium with effective neutralization and biosorption of dyes from ATIE. The process proved to be efficient, inexpensive and eco-friendly as compared to conventional chemical neutralization process.

Keywords: Biological neutralization; Bioremediation; Enterococcus faecalis; Madhuca indica; Sugarcane bagasse.

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