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ISSN: 2155-6199

Journal of Bioremediation & Biodegradation
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Research Article

Treatment of Dye Industry Effluent Using Free and Immobilized Cyanobacteria

Subramaniyan Vijayakumar* and Chockaiya Manoharan
Department of Botany and Microbiology, A.V.V.M. Sri Pushpam College (Autonomous), Poondi-613 503, Tamil Nadu, India
Corresponding Author : Subramaniyan Vijayakumar
Department of Botany and Microbiology
A.V.V.M. Sri Pushpam College (Autonomous)
Poondi-613503, Tamil Nadu, India
E-mail: [email protected]
Received: May 27, 2012; Accepted: September 20, 2012; Published: September 22, 2012
Citation: Vijayakumar S, Manoharan C (2012) Treatment of Dye Industry Effluent Using Free and Immobilized Cyanobacteria. J Bioremed Biodeg 3:165. doi:10.4172/2155-6199.1000165
Copyright: © 2012 Vijayakumar S, et al. This is an open-a ccess article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Abstract

In the present study, dye industry effluent was treated with Cyanobacteria for removing colour and other nutrients. Oscillatoria brevis and Westiellopsis prolifica were selected for the study based on their dominant occurrence in the effluent. Organisms were used in both free and immobilized conditions. These organisms not only removed the organic and in organic chemicals but also reduced the intensity of the colour from the effluent. The result revealed that within 30 days, more than 75% of colour has been removed. Nutrients such as nitrites, phosphates and ammonia were completely removed. Increase in Dissolved Oxygen (DO) content and reduction of Biological Oxygen demand (BOD), Chemical Oxygen demand (COD) up to 95% have been reported. Among the two conditions, immobilized cyanobacteria were more effective than that of free cells. Generally the effluent supported the growth of Oscillatoria and Westiellopsis, but the growth was not well pronounced as compared to control. It is concluded that Oscillatoria had a little edge over than Westiellopsis, can successfully be used not only to reduce pollution load but also for colour
removal purposes.

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