African Journal of
Biotechnology

  • Abbreviation: Afr. J. Biotechnol.
  • Language: English
  • ISSN: 1684-5315
  • DOI: 10.5897/AJB
  • Start Year: 2002
  • Published Articles: 12488

Full Length Research Paper

Preliminary study on the dye removal efficacy of immobilized marine and freshwater microalgal beads from textile wastewater

S. Dinesh Kumar,
  • S. Dinesh Kumar,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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P. Santhanam*,
  • P. Santhanam*,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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R. Nandakumar,
  • R. Nandakumar,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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S. Ananth,
  • S. Ananth,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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B. Balaji Prasath,
  • B. Balaji Prasath,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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A. Shenbaga Devi,
  • A. Shenbaga Devi,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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S. Jeyanthi,
  • S. Jeyanthi,
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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T. Jayalakshmi and
  • T. Jayalakshmi and
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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P. Ananthi
  • P. Ananthi
  • Marine Planktonology and Aquaculture Laboratory, Department of Marine Science, School of Marine Sciences, Bharathidasan University, Tiruchirappalli-620 024, Tamil Nadu, India.
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  •  Received: 06 September 2013
  •  Accepted: 16 May 2014
  •  Published: 28 May 2014

Abstract

Discharge of textile wastewater containing toxic dyes can adversely affect aquatic organisms and human health. The objective of the study was to investigate the potential of immobilized marine microalgae (Chlorella marina, Isochrysis galbana, Tetraselmis sp. Dunaliella salina and Nannochloropsis sp.) and freshwater microalga (Chlorella sp.) in removing dye from textile wastewater (TW). The present study incorporated the use of 2% sodium alginate matrixes for decoloration. Among the algal species tested, the highest colour removal was noticed in Isochrysis galbana (55%) followed by freshwater Chlorella sp. (43%). The present method is easy to use, cost effective and devoid of technical problems.

 

Key words: Marine microalga, immobilization, textile wastewater, Chlorella marina, Isochrysis galbana, Dunaliella salina, biosorption, bioremediation.

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This article is published under the terms of the Creative Commons Attribution License 4.0

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