title: Biological neutralization and biosorption of dyes of alkaline textile industry wastewater.
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.
authors.affiliation: Discipline of Marine Biotechnology and Ecology, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar, Gujarat 364021, India.
authors.forename: Rakeshkumar M
authors.initials: RM
authors.lastname: Jain
authors.affiliation: Discipline of Marine Biotechnology and Ecology, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar, Gujarat 364021, India. Electronic address: khmody@csmcri.org.
authors.forename: Kalpana H
authors.initials: KH
authors.lastname: Mody
authors.affiliation: Discipline of Marine Biotechnology and Ecology, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar, Gujarat 364021, India.
authors.forename: Jitendra
authors.initials: J
authors.lastname: Keshri
authors.affiliation: Discipline of Marine Biotechnology and Ecology, Council of Scientific & Industrial Research-Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI), G.B. Marg, Bhavnagar, Gujarat 364021, India.
authors.forename: Bhavanath
authors.initials: B
authors.lastname: Jha
mesh_terms: D000327:Adsorption; D001673:Biodegradation, Environmental; D002482:Cellulose / Q000737:chemistry; D004396:Coloring Agents / Q000737:chemistry* / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D007220:Industrial Waste / Q000032:analysis*; D032128:Madhuca; D006109:Poaceae / Q000737:chemistry; D013783:Textile Industry; D014865:Waste Disposal, Fluid / Q000379:methods; D062065:Wastewater
chemical_list: D002482:Cellulose; D004396:Coloring Agents; D007220:Industrial Waste; D062065:Wastewater; C027433:bagasse
keywords: Biological neutralization; Bioremediation; Enterococcus faecalis; Madhuca indica; Sugarcane bagasse