Evaluation of consortia of microorganisms for efficient removal of hexavalent chromium from industrial wastewater

Bull Environ Contam Toxicol. 2009 May;82(5):597-600. doi: 10.1007/s00128-009-9662-3. Epub 2009 Jan 30.

Abstract

The Chromium (Cr) uptake ability of Cr-resistant bacterium Bacillus thuringiensis, yeast Candida etschellsii, and a protozoan Stylonychia mytilus, isolated from industrial waste water, was evaluated individually and in different combinations. It was found that the three types of microorganisms grown together in a culture medium could collectively uptake 90% of Cr(6+) from the culture medium as against 82% by bacterium + protozoan or yeast + protozoan combined culture, each. Consortium of bacterium, yeast and ciliates therefore could make much more efficient inoculum for remediation of Cr-contaminated industrial waste water.

Publication types

  • Evaluation Study

MeSH terms

  • Animals
  • Bacteria / isolation & purification
  • Bacteria / metabolism*
  • Biodegradation, Environmental
  • Chromium / metabolism*
  • Eukaryota / isolation & purification
  • Eukaryota / metabolism*
  • Industrial Waste*
  • Water Microbiology
  • Water Pollutants, Chemical / metabolism*
  • Water Purification / methods*
  • Yeasts / isolation & purification
  • Yeasts / metabolism*

Substances

  • Industrial Waste
  • Water Pollutants, Chemical
  • Chromium
  • chromium hexavalent ion